AU2012200211B2

AU2012200211B2 - Diaminopyrimidines as P2X3 and P2X2/3 antagonists

Info

Publication number: AU2012200211B2
Application number: AU2012200211A
Authority: AU
Inventors: Chris Allen Broka; David Scott Carter; Michael Patrick Dillon; Ronald Charles Hawley; Alam Jahangir; Clara Jeou Jen Lin; Daniel Warren Parish
Original assignee: F Hoffmann La Roche AG
Current assignee: F Hoffmann La Roche AG
Priority date: 2004-03-05
Filing date: 2012-01-13
Publication date: 2014-11-27
Anticipated expiration: 2025-02-25
Also published as: AU2012200211A1

Abstract

DIAMINOPYRIMIDINES AS P2X3 AND P2X2/3 ANTAGONISTS Abstract Compounds and methods for treating diseases mediated by a P2X 3 and/or a P2X 2/3 receptor antagonists, the methods comprising administering to a subject in need thereof an s effective amount of a compound of formula (I) or a pharmaceutically acceptable salt, solvate or prodrug thereof, wherein D, X, Y, R', R , R', R', R', R', R' and R' are as defined herein.

Description

S&F Ref: 775682D1 AUSTRALIA PATENTS ACT 1990 COMPLETE SPECIFICATION FOR A STANDARD PATENT Name and Address F. Hoffmann-La Roche AG, of Grenzacherstrasse 124, of Applicant : CH-4070, Basel, Switzerland Actual Inventor(s): Alam Jahangir Chris Allen Broka Clara Jeou Jen Lin Ronald Charles Hawley David Scott Carter Michael Patrick Dillon Daniel Warren Parish Address for Service: Spruson & Ferguson St Martins Tower Level 35 31 Market Street Sydney NSW 2000 (CCN 3710000177) Invention Title: Diaminopyrimidines as P2X3 and P2X2/3 antagonists The following statement is a full description of this invention, including the best method of performing it known to me/us: 5845c(5896107_1) 1 Diaminopyrimidines as P2X3 and P2X2/3 Antagonists This invention pertains to compounds useful for treatment of diseases associated with P2X purinergic receptors, and more particularly to P2X 3 and/or P2X2 3 antagonists usable for treatment of genitourinary and pain-related diseases, conditions and disorders. The urinary bladder is responsible for two important physiological functions: urine storage 5 and urine emptying. This process involves two main steps: (1) the bladder fills progressive ly until the tension in its walls rises above a threshold level; and (2) a nervous reflex, called the micturition reflex, occurs that empties the bladder or, if this fails, at least causes a con scious desire to urinate. Although the micturition reflex is an autonomic spinal cord reflex, it can also be inhibited or mediated by centers in the cerebral cortex or brain. 10 Purines, acting via extracellular purinoreceptors, have been implicated as having a variety of physiological and pathological roles. ATP, and to a lesser extent, adenosine, can stimu late sensory nerve endings resulting in intense pain and a pronounced increase in sensory nerve discharge. ATP receptors have been classified into two major families, the P2Y- and P2X-purinoreceptors, on the basis of molecular structure, transduction mechanisms, and 15 pharmacological characterization. The P2Y-purinoreceptors are G-protein coupled recep tors, while the P2X-purinoreceptors are a family of ATP-gated cation channels. Purinergic receptors, in particular, P2X receptors, are known to form homomultimers or heteromulti mers. To date, cDNAs for several P2X receptors subtypes have been cloned, including: six homomeric receptors, P2Xi; P2X 2 ; P2X 3 ; P2X 4 ; P2Xs; and P2X 7 ; and three heteromeric re 20 ceptors P2X2/ 3 , P2X 4

/

6 , P2XI/ 5 . The structure and chromosomal mapping of mouse genomic P2X 3 receptor subunit has also been described. In vitro, co-expression of P2X 2 and P2X 3 receptor subunits is necessary to produce ATP-gated currents with the properties seen in some sensory neurons. P2X receptor subunits are found on afferents in rodent and human bladder urothelium. 25 Data exists suggesting that ATP may be released from epithelial/endothelial cells of the uri nary bladder or other hollow organs as a result of distention. ATP released in this manner may serve a role in conveying information to sensory neurons located in subepithelial components, e.g., suburothelial lamina propria. The P2X receptors have been studied in a number of neurons, including sensory, sympathetic, parasympathetic, mesenteric, and 30 central neurons. These studies indicate that purinergic receptors play a role in afferent -2 neurotransmission from the bladder, and that modulators of P2X receptors are potentially useful in the treatment of bladder disorders and other genitourinary diseases or conditions. Recent evidence also suggests a role of endogenous ATP and purinergic receptors in noci ceptive responses in mice. ATP-induced activation of P2X receptors on dorsal root gang 5 lion nerve terminals in the spinal cord has been shown to stimulate release of glutamate, a key neurotransmitter involved in nociceptive signaling. P2X 3 receptors have been identi fied on nociceptive neurons in the tooth pulp. ATP released from damaged cells may thus lead to pain by activating P2X 3 and/or P2X 2

/

3 containing receptors on nociceptive sensory nerve endings. This is consistent with the induction of pain by intradermally applied ATP 10 in the human blister-base model. P2X antagonists have been shown to be analgesic in ani mal models. This evidence suggests that P2X 2 and P2X 3 are involved in nociception, and that modulators of P2X receptors are potentially useful as analgesics. There is accordingly a need for methods of treating diseases, conditions and disorders mediated by P2X 3 and/or P2X 2 13 receptors, as well as a need for compounds that act as 15 modulators of P2X receptors, including antagonists of P2X 3 and P2X 2

/

3 receptors. The present invention satisfies these needs as well as others. Many diaminopyrimidine compounds, such as "ormetoprim" (US 2,658,897) and "tri metoprim" (US 2,909,522), have previously been made and identified as antibacterial agents. However, no diaminopyrimidines have heretofore been identified as modulators of 20 P2X receptors. The invention provides a compound of formula (I) R

NR

7

R

8 R 2 X N Ra / R 6N R4 D or a pharmaceutically acceptable salts thereof, wherein: 25 X is -CH 2 -; -0-; -CHOH-; -S(O),-; or -NRc- wherein n is from 0 to 2 and RC is hydrogen or alkyl; Y is hydrogen; or -NRdRC wherein one of Rd and Re is hydrogen, and the other is hydrogen; alkyl; cycloalkyl; cycloalkylalkyl; haloalkyl; haloalkoxy; hydroxyalky; alkoxyalkyl; acetyl; ailcylsulfonyl; alkylsulfonylalkyl; aminocarbonyloxyalkyl; -3hydroxycarbonylalkyl; hydroxyalkyloxycarbonylalkyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl; D is an optional oxygen; R' is alkyl; alkenyl; cycloalkyl; cycloalkenyl; halo; haloalkyl; hydroxyalkyl; or alkoxy; 5 R 2 , R 3 , RW and R 5 each independently is hydrogen; alkyl; alkenyl; amino; halo; amido; halo alkyl; alkoxy; hydroxy; haloalkoxy; nitro; amino; hydroxyalkyl; alkoxyalkyl; hydroxy alkoxy; alkynylalkoxy; alkylsulfonyl; arylsulfonyl; cyano; aryl; heteroaryl; heterocyclyl; heterocyclylalkoxy; aryloxy; heteroaryloxy; aralkyloxy; heteroaralkyloxy; optionally substituted phenoxy; -(CH 2 )m-(Z)n-(CO)-Rf or -(CH 2 )m-(Z)n-SO 2 -(NR ) -Rfwhere 10 m and n each independently is 0 or 1, Z is 0 or NR 5 , Rf is hydrogen, alkyl, hydroxy, alkoxy, amino, hydroxyalkyl or alkoxyalkyl, and each R' is independently hydrogen or alkyl; or R 3 and R 4 may together form an alkylene dioxy; or R 3 and R 4 together with the atoms to which they are attached may form a five or six-membered ring that optionally includes one or two heteroatoms selected from 0, S and N; or R 2 and R 3 15 may together form an alkylene dioxy, or R 2 and R 3 together with the atoms to which they are attached may form a five or six-membered ring that optionally includes one or two heteroatoms selected from 0, S and N;

R

6 is hydrogen; alkyl; halo; haloalkyl; amino; or alkoxy; and one of R 7 and R" is hydrogen, and the other is hydrogen; alkyl; cycloalkyl; cycloalkylalkyl; 20 haloalkyl; haloalkoxy; hydroxyalky 1koxyalkyl; acetyl; alkylsulfonyl; alkylsulfonyl alkyl; aminocarbonyloxyalkyl; hydroxycarbonylalkyl; hydroxyalkyloxycarbonylalkyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl; provided that when X is -CH 2 - and R 7 , R 8 , Rd and R' are hydrogen, R' is isopropyl, iso 25 propenyl, cyclopropyl or iodo. In another embodiment the present invention provides a method for treating a disease mediated by a P2X 3 receptor antagonist, a P2X 213 receptor antagonist, or both, said method comprising administering to a subject in need thereof an effective amount of a compound of formula (1*): R

NR

7

R

8 R2 X 30 | | Y*) R or a pharmaceutically acceptable salt, solvate or prodrug thereof, -4 wherein: X is -CH 2 -; -0-; -C(O)-; -CHOH-; -S(O),-; or -NR- wherein n is from 0 to 2 and Rc is hydrogen or alkyl; Y is hydrogen; or -NR dR wherein one of R and Reis hydrogen, and the other is hydro 5 gen; alkyl; cycloalkyl; cycloalkylalkyl; haloalkyl; haloalkoxy; hydroxyalky; alkoxyalkyl; acetyl; alkylsulfonyl; alkylsulfonylalkyl; aryl; aralkyl; arylsulfonyl; heteroaryl; hetero arylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl; R' is alkyl; alkenyl; cycloalkyl; cycloalkenyl; halo; haloalkyl; or alkoxy;

R

2 , RW, R 4 and R' each independently is hydrogen; alkyl; amino; amido; haloalkyl; alkoxy; 10 alkylsulfonyl; arylsulfonyl; sulfonamido; cyano; acetyl; heteroaryl; carboxylic acid; carboxylic amide; urea; carbamate; acetamido; or optionally substituted phenoxy; or

R

3 and R 4 may together form an alkylene dioxy; or R 3 and R 4 together with the atoms to which they are attached may form a five or six-membered ring that includes one or two heteroatoms selected from 0, S and N; or or R 2 and R 3 may together form an 15 alkylene dioxy, or R 2 and R 3 together with the atoms to which they are attached may form a five or six-membered ring that includes one or two heteroatoms selected from 0, S and N; R' is hydrogen; alkyl; haloalkyl; amino; or alkoxy; and one of R and R 8 is hydrogen, and the other is: hydrogen; alkyl, cycloalkyl; 20 cycloalkylalkyl; haloallcyl; hydroxyalkyl; alkoxyalkyl; acetyl; alkylsulfonyl; alkylsulfonylalkyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl. The invention also provides pharmaceutical compositions comprising the compounds, methods of using the compounds, and methods of preparing the compounds. 25 Unless otherwise stated, the following terms used in this Application, including the specifi cation and claims, have the definitions given below. It must be noted that, as used in the specification and the appended claims, the singular forms "a", "an," and "the" include plural referents unless the context clearly dictates otherwise. "Agonist" refers to a compound that enhances the activity of another compound or recep 30 tor site. "Antagonist" refers to a compound that diminishes or prevents the action of another com pound or receptor site. "Alkyl" means the monovalent linear or branched saturated hydrocarbon moiety, consist ing solely of carbon and hydrogen atoms, having from one to twelve carbon atoms.

-5 "Lower alkyl" refers to an alkyl group of one to six carbon atoms, i.e. CI-C 6 alkyl. Examples of alkyl groups include, but are not limited to, methyl, ethyl, propyl, isopropyl, isobutyl, sec-butyl, tert-butyl, pentyl, n-hexyl, octyl, dodecyl, and the like. "Alkylene" means a linear saturated divalent hydrocarbon radical of one to six carbon 5 atoms or a branched saturated divalent hydrocarbon radical of three to six carbon atoms, e.g., methylene, ethylene, 2,2-dimethylethylene, propylene, 2-methylpropylene, butylene, pentylene, and the like. "Alkoxy" means a moiety of the formula -OR, wherein R is an alkyl moiety as defined herein. Examples of alkoxy moieties include, but are not limited to, methoxy, ethoxy, iso 10 propoxy, and the like. "Alkoxyalkyl" means a moiety of the formula Ra--O-R-, where Ra is alkyl and Rb is alkyl ene as defined herein. Exemplary alkoxyalkyl groups include, by way of example, 2-meth oxyethyl, 3-methoxypropyl, 1-methyl-2-methoxyethyl, 1-(2-methoxyethyl)-3-methoxy propyl, and 1-(2-methoxyethyl)-3-methoxypropyl. 15 "Alkylcarbonyl" means a moiety of the formula -R'-R", where R' is oxo and R" is alkyl as defined herein. "Alkylsulfonyl" means a moiety of the formula -R'-R", where R' is -SO 2 - and R" is alkyl as defined herein. "Alkylsulfonylalkyl means a moiety of the formula -R'-R"-R"' where R' is alkyl, R" is -SO 2 20 and R.' is alkyl as defined herein. "Alkylamino means a moiety of the formula -NR-R' wherein R is hyrdogen or alkyl and R' is alkyl as defined herein. "Alkoxyamino" means a moiety of the formula -NR-OR' wherein R is hydrogen or alkyl and R' is alkyl as defined herein. 25 "Alkylsulfanyl" means a moiety of the formula -SR wherein R is alkyl as defined herein. "Aminoalkyl" means a group -R-R' wherein R' is amino and R is alkylene as defined herein. "Aminoalkyl" includes aminomethyl, aminoethyl, 1-aminopropyl, 2-aminopropyl, and the like. The amino moiety of "aminoalkyl" may be substituted once or twice with alkyl to pro vide "alkylaminoalkyl" and "dialkylaminoalkyl" respectively. "Alkylaminoalkyl" includes 30 methylaminomethyl, methylaminoethyl, methylaminopropyl, ethylaminoethyl and the -6 like. "Dialkylaminoalkyl" includes dimethylaminomethyl, dimethylaminoethyl, dimethyl aminopropyl, N-methyl-N-ethylaminoethyl, and the like. "Aminoalkoxy" means a group -OR-R' wherein R' is amino and R is alkylene as defined herein. "Alkylsulfonylamido" means a moiety of the formula -NR'S0 2 -R wherein R is alkyl 5 and R' is hydrogen or alkyl. "Aryl" means a monovalent cyclic aromatic hydrocarbon moiety consisting of a mono-, bi or tricyclic aromatic ring. The aryl group can be optionally substituted as defined herein. Examples of aryl moieties include, but are not limited to, optionally substituted phenyl, naphthyl, phenanthryl, fluorenyl, indenyl, pentalenyl, azulenyl, oxydiphenyl, biphenyl, 10 methylenediphenyl, aminodiphenyl, diphenylsulfidyl, diphenylsulfonyl, diphenylisoprop ylidenyl, benzodioxanyl, benzofuranyl, benzodioxylyl, benzopyranyl, benzoxazinyl, benz oxazinonyl, benzopiperadinyl, benzopiperazinyl, benzopyrrolidinyl, benzomorpholinyl, methylenedioxyphenyl, ethylenedioxyphenyl, and the like, including partially hydrogen ated derivatives thereof. 15 "Arylalkyl" and "Aralkyl", which may be used interchangeably, mean a radical-R"Rb where R" is an alkylene group and Rb is an aryl group as defined herein; e.g., phenylalkyls such as benzyl, phenylethyl, 3-(3-chlorophenyl)-2-methylpentyl, and the like are examples of aryl alkyl. "Cyanoalkyl" " means a moiety of the formula -R'-R", where R' is alkylene as defined here 20 in and R" is cyano or nitrile. "Cycloalkyl" means a monovalent saturated carbocyclic moiety consisting of mono- or bi cyclic rings. Cycloalkyl can optionally be substituted with one or more substituents, wherein each substituent is independently hydroxy, alkyl, alkoxy, halo, haloalkyl, amino, monoalkylamino, or dialkylamino, unless otherwise specifically indicated. Examples of 25 cycloalkyl moieties include, but are not limited to, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, and the like, including partially unsaturated derivatives thereof. "Cycloalkylalkyl" means a moiety of the formula -R'-R", where R' is alkylene and R" is cycloalkyl as defined herein. "Heteroalkyl" means an alkyl radical as defined herein wherein one, two or three hydrogen 30 atoms have been replaced with a substituent independently selected from the group con sisting of -ORa, -NRbRc, and --S(O)nRd (where n is an integer from 0 to 2), with the under standing that the point of attachment of the heteroalkyl radical is through a carbon atom, -7 wherein R' is hydrogen, acyl, alkyl, cycloalkyl, or cycloalkylalkyl; Rb and R' are indepen dently of each other hydrogen, acyl, alkyl, cycloalkyl, or cycloalkylalkyl; and when n is 0, Rd is hydrogen, alkyl, cycloalkyl, or cycloalkylalkyl, and when n is 1 or 2, Rd is alkyl, cyclo alkyl, cycloalkylalkyl, amino, acylamino, monoalkylamino, or dialkylamino. Representa 5 tive examples include, but are not limited to, 2-hydroxyethyl, 3-hydroxypropyl, 2-hydroxy 1-hydroxymethylethyl, 2,3-dihydroxypropyl, 1-hydroxymethylethyl, 3-hydroxybutyl, 2,3 dihydroxybutyl, 2-hydroxy-1-methylpropyl, 2-aminoethyl, 3-aminopropyl, 2-methylsulf onylethyl, aminosulfonylmethyl, aminosulfonylethyl, aminosulfonylpropyl, methylamino sulfonylmethyl, methylaminosulfonylethyl, methylaminosulfonylpropyl, and the like. 10 "Heteroaryl" means a monocyclic or bicyclic radical of 5 to 12 ring atoms having at least one aromatic ring containing one, two, or three ring heteroatoms selected from N, 0, or S, the remaining ring atoms being C, with the understanding that the attachment point of the heteroaryl radical will be on an aromatic ring. The heteroaryl ring may be optionally sub stituted as defined herein. Examples of heteroaryl moieties include, but are not limited to, 15 optionally substituted imidazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, oxadiazolyl, thiadiazolyl, pyrazinyl, thienyl, benzothienyl, thiophenyl, furanyl, pyranyl, pyridyl, pyrrol yl, pyrazolyl, pyrimidyl, quinolinyl, isoquinolinyl, benzofuryl, benzothiophenyl, benzothio pyranyl, benzimidazolyl, benzooxazolyl, benzooxadiazolyl, benzothiazolyl, benzothiadi azolyl, benzopyranyl, indolyl, isoindolyl, triazolyl, triazinyl, quinoxalinyl, purinyl, quin 20 azolinyl, quinolizinyl, naphthyridinyl, pteridinyl, carbazolyl, azepinyl, diazepinyl, acridinyl and the like, including partially hydrogenated derivatives thereof. The terms "halo", "halogen" and "halide", which may be used interchangeably, refer to a substituent fluoro, chloro, bromo, or iodo. "Haloalkyl" means alkyl as defined herein in which one or more hydrogen has been re 25 placed with same or different halogen. Exemplary haloalkyls include -CH 2 CI, -CH 2

CF

3 ,

-CH

2 CC1 3 , perfluoroalkyl (e.g., -CF 3 ), and the like. "Haloalkoxy" means a moiety of the formula -OR, wherein R is a haloalkyl moiety as de fined herein. An exemplary haloalkoxy is difluoromethoxy. "Heterocycloamino" means a saturated ring wherein at least one ring atom is N, NH or 30 N-alkyl and the remaining ring atoms form an alkylene group. "Heterocyclyl" means a monovalent saturated moiety, consisting of one to three rings, incorporating one, two, or three or four heteroatoms (chosen from nitrogen, oxygen or sulfur). The heterocyclyl ring may be optionally substituted as defined herein. Examples -8 of heterocyclyl moieties include, but are not limited to, optionally substituted piperidinyl, piperazinyl, homopiperazinyl, azepinyl, pyrrolidinyl, pyrazolidinyl, imidazolinyl, imidazol idinyl, pyridinyl, pyridazinyl, pyrimidinyl, oxazolidinyl, isoxazolidinyl, morpholinyl, thi azolidinyl, isothiazolidinyl, quinuclidinyl, quinolinyl, isoquinolinyl, benzimidazolyl, thia 5 diazolylidinyl, benzothiazolidinyl, benzoazolylidinyl, dihydrofuryl, tetrahydrofuryl, di hydropyranyl, tetrahydropyranyl, thiamorpholinyl, thiamorpholinylsulfoxide, thiamor pholinylsulfone, dihydroquinolinyl, dihydrisoquinolinyl, tetrahydroquinolinyl, tetrahydro isoquinolinyl, and the like. "Heterocyclylalkyl" means a moiety of the formula -R-R' wherein R is alkylene and R' is 10 heterocyclyl as defined herein. "Heterocyclyloxy" means a moiety of the formula -OR wherein R is heterocyclyl as defined herein. "Heterocyclylalkoxy" means a moiety of the formula -OR-R' wherein R is alkylene and R' is heterocyclyl as defined herein. 15 "Hydroxyalkoxy" means a moiety of the formula -OR wherein R is hydroxyalkyl as defined herein. "Hydroxyalkylamino" means a moiety of the formula -NR-R' wherein R is hydrogen or alkyl and R' is hydroxyalkyl as defined herein. "Hydroxyalkylaminoalkyl" means a moiety of the formula -R-NR'-R" wherein R is alkylene, 20 R' is hydrogen or alkyl, and R" is hydroxyalkyl as defined herein. "Hydroxyalkyl" means an alkyl moiety as defined herein, substituted with one or more, preferably one, two or three hydroxy groups, provided that the same carbon atom does not carry more than one hydroxy group. Representative examples include, but are not limited to, hydroxymethyl, 2-hydroxyethyl, 2-hydroxypropyl, 3-hydroxypropyl, 1-(hydroxymeth 25 yl)-2-methylpropyl, 2-hydroxybutyl, 3-hydroxybutyl, 4-hydroxybutyl, 2,3-dihydroxy propyl, 2-hydroxy-1-hydroxymethylethyl, 2,3-dihydroxybutyl, 3,4-dihydroxybutyl and 2-(hydroxymethyl)-3-hydroxypropyl "Hydroxycycloalkyl" means a cycloalkyl moiety as defined herein wherein one, two or three hydrogen atoms in the cycloalkyl radical have been replaced with a hydroxy sub 30 stituent. Representative examples include, but are not limited to, 2-, 3-, or 4-hydroxy cyclohexyl, and the like.

-9 "Urea"or "ureido" means a group of the formula -NR'-C(O)-NR"R"' wherein R', R" and R.' each independently is hydrogen or alkyl. "Carbamate" means a group of the formula -O-C(O)-NR'R" wherein R' and R" each in dependently is hydrogen or alkyl. 5 "Carboxy" means a group of the formula -O-C(O)-OH. "Sulfonamido" means a group of the formula -S0 2 -NR'R" wherein R', R" and R.' each independently is hydrogen or alkyl. "Optionally substituted", when used in association with "aryl", phenyl", "heteroaryl" "cyclo hexyl" or "heterocyclyl", means an aryl, phenyl, heteroaryl, cyclohexyl or heterocyclyl which 10 is optionally substituted independently with one to four substituents, preferably one or two substituents selected from alkyl, cycloalkyl, cycloalkylalkyl, heteroalkyl, hydroxyalkyl, halo, nitro, cyano, hydroxy, alkoxy, amino, acylamino, mono-alkylamino, di-alkylamino, halo alkyl, haloalkoxy, heteroalkyl, -COR (where R is hydrogen, alkyl, phenyl or phenylalkyl), (CR'R"),-COOR (where n is an integer from 0 to 5, R' and R" are independently hydrogen 15 or alkyl, and R is hydrogen, alkyl, cycloalkyl, cycloalkylalkyl, phenyl or phenylalkyl), or -(CR'R")n-CONRR (where n is an integer from 0 to 5, R' and R" are independently hydrogen or alkyl, and Ra and Rb are, independently of each other, hydrogen, alkyl, cyclo alkyl, cycloalkylalkyl, phenyl or phenylalkyl). "Leaving group" means the group with the meaning conventionally associated with it in 20 synthetic organic chemistry, i.e., an atom or group displaceable under substitution reaction conditions. Examples of leaving groups include, but are not limited to, halogen, alkane- or arylenesulfonyloxy, such as methanesulfonyloxy, ethanesulfonyloxy, thiomethyl, benzene sulfonyloxy, tosyloxy, and thienyloxy, dihalophosphinoyloxy, optionally substituted benz yloxy, isopropyloxy, acyloxy, and the like. 25 "Modulator" means a molecule that interacts with a target. The interactions include, but are not limited to, agonist, antagonist, and the like, as defined herein. "Optional" or "optionally" means that the subsequently described event or circumstance may but need not occur, and that the description includes instances where the event or circumstance occurs and instances in which it does not. 30 "Disease" and "Disease state" means any disease, condition, symptom, disorder or indica tion.

- 10 "Inert organic solvent" or "inert solvent" means the solvent is inert under the conditions of the reaction being described in conjunction therewith, including, e.g., benzene, toluene, acetonitrile, tetrahydrofuran, N,N-dimethylformamide, chloroform, methylene chloride or dichloromethane, dichloroethane, diethyl ether, ethyl acetate, acetone, methyl ethyl ketone, 5 methanol, ethanol, propanol, isopropanol, tert-butanol, dioxane, pyridine, and the like. Unless specified to the contrary, the solvents used in the reactions of the present invention are inert solvents. "Pharmaceutically acceptable" means that which is useful in preparing a pharmaceutical composition that is generally safe, non-toxic, and neither biologically nor otherwise un 10 desirable and includes that which is acceptable for veterinary as well as human pharma ceutical use. "Pharmaceutically acceptable salts" of a compound means salts that are pharmaceutically acceptable, as defined herein, and that possess the desired pharmacological activity of the parent compound. Such salts include: 15 acid addition salts formed with inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid, and the like; or formed with organic acids such as acetic acid, benzenesulfonic acid, benzoic, camphorsulfonic acid, citric acid, ethanesulfonic acid, fumaric acid, glucoheptonic acid, gluconic acid, glutamic acid, glycolic acid, hydroxynaphtoic acid, 2-hydroxyethanesulfonic acid, lactic acid, maleic acid, malic 20 acid, malonic acid, mandelic acid, methanesulfonic acid, muconic acid, 2-naphthalene sulfonic acid, propionic acid, salicylic acid, succinic acid, tartaric acid, p-toluenesulfonic acid, trimethylacetic acid, and the like; or salts formed when an acidic proton present in the parent compound either is replaced by a metal ion, e.g., an alkali metal ion, an alkaline earth ion, or an aluminum ion; or coordi 25 nates with an organic or inorganic base. Acceptable organic bases include diethanolamine, ethanolamine, N-methylglucamine, triethanolamine, tromethamine, and the like. Accept able inorganic bases include aluminum hydroxide, calcium hydroxide, potassium hydroxide, sodium carbonate and sodium hydroxide. The preferred pharmaceutically acceptable salts are the salts formed from acetic acid, 30 hydrochloric acid, sulphuric acid, methanesulfonic acid, maleic acid, phosphoric acid, tartaric acid, citric acid, sodium, potassium, calcium, zinc, and magnesium. It should be understood that all references to pharmaceutically acceptable salts include solvent addition forms (solvates) or crystal forms (polymorphs) as defined herein, of the same acid addition salt.

-11 The terms "pro-drug" and "prodrug", which may be used interchangeably herein, refer to any compound which releases an active parent drug according to formula I in vivo when such prodrug is administered to a mammalian subject. Prodrugs of a compound of formula I are prepared by modifying one or more functional group(s) present in the com 5 pound of formula I in such a way that the modification(s) may be cleaved in Vivo to release the parent compound. Prodrugs include compounds of formula I wherein a hydroxy, amino, or sulfhydryl group in a compound of Formula I is bonded to any group that may be cleaved in vivo to regenerate the free hydroxyl, amino, or sulfhydryl group, respectively. Examples of prodrugs include, but are not limited to, esters (e.g., acetate, formate, and 10 benzoate derivatives), carbamates (e.g., N,N-dimethylaminocarbonyl) of hydroxy func tional groups in compounds of formula I, N-acyl derivatives (e.g. N-acetyl) N-Mannich bases, Schiff bases and enaminones of amino functional groups, oximes, acetals, ketals and enol esters of ketone and aldehyde functional groups in compounds of Formula I, and the like, see Bundegaard,"Design of Prodrugs" p1-92, Elsevier, New York-Oxford (1985), and 15 the like. "Protective group" or "protecting group" means the group which selectively blocks one reactive site in a multifunctional compound such that a chemical reaction can be carried out selectively at another unprotected reactive site in the meaning conventionally asso ciated with it in synthetic chemistry. Certain processes of this invention rely upon the 20 protective groups to block reactive nitrogen and/or oxygen atoms present in the reactants. For example, the terms "amino-protecting group" and "nitrogen protecting group" are used interchangeably herein and refer to those organic groups intended to protect the nitrogen atom against undesirable reactions during synthetic procedures. Exemplary nitrogen protecting groups include, but are not limited to, trifluoroacetyl, acetamido, 25 benzyl (Bn), benzyloxycarbonyl (carbobenzyloxy, CBZ), p-methoxybenzyloxycarbonyl, p nitrobenzyloxycarbonyl, tert-butoxycarbonyl (BOC), and the like. The artisan in the art will know how to chose a group for the ease of removal and for the ability to withstand the following reactions. "Solvates" means solvent additions forms that contain either stoichiometric or non stoi 30 chiometric amounts of solvent. Some compounds have a tendency to trap a fixed molar ratio of solvent molecules in the crystalline solid state, thus forming a solvate. If the solvent is water the solvate formed is a hydrate, when the solvent is alcohol, the solvate formed is an alcoholate. Hydrates are formed by the combination of one or more molecules of water with one of the substances in which the water retains its molecular state as H 2 0, such com 35 bination being able to form one or more hydrate.

- 12 "Subject" means mammals and non-mammals. Mammals means any member of the mammalia class including, but not limited to, humans; non-human primates such as chim panzees and other apes and monkey species; farm animals such as cattle, horses, sheep, goats, and swine; domestic animals such as rabbits, dogs, and cats; laboratory animals in 5 cluding rodents, such as rats, mice, and guinea pigs; and the like. Examples of non-mam mals include, but are not limited to, birds, and the like. The term "subject" does not de note a particular age or sex. "Disorders of the urinary tract" or "uropathy" used interchangeably with "symptoms of the urinary tract" means the pathologic changes in the urinary tract. Examples of urinary tract 10 disorders include, but are not limited to, incontinence, benign prostatic hypertrophy (BPH), prostatitis, detrusor hyperreflexia, outlet obstruction, urinary frequency, nocturia, urinary urgency, overactive bladder, pelvic hypersensitivity, urge incontinence, urethritis, prostatodynia, cystitis, idiophatic bladder hypersensitivity, and the like. "Disease states associated with the urinary tract" or "urinary tract disease states" or "uro 15 pathy" used interchangeably with "symptoms of the urinary tract" mean the pathologic changes in the urinary tract, or dysfunction of urinary bladder smooth muscle or its in nervation causing disordered urinary storage or voiding. Symptoms of the urinary tract include, but are not limited to, overactive bladder (also known as detrusor hyperactivity), outlet obstruction, outlet insufficiency, and pelvic hypersensitivity. 20 "Overactive bladder" or "detrusor hyperactivity" includes, but is not limited to, the changes symptomatically manifested as urgency, frequency, altered bladder capacity, in continence, micturition threshold, unstable bladder contractions, sphincteric spasticity, detrusor hyperreflexia (neurogenic bladder), detrusor instability, and the like. "Outlet obstruction" includes, but is not limited to, benign prostatic hypertrophy (BPH), 25 urethral stricture disease, tumors, low flow rates, difficulty in initiating urination, urgency, suprapubic pain, and the like. "Outlet insufficiency" includes, but is not limited to, urethral hypermobility, intrinsic sphincteric deficiency, mixed incontinence, stress incontinence, and the like. "Pelvic Hypersensitivity" includes, but is not limited to, pelvic pain, interstitial (cell) cysti 30 tis, prostatodynia, prostatitis, vulvadynia, urethritis, orchidalgia, overactive bladder, and the like.

- 13 "Therapeutically effective amount" means an amount of a compound that, when admini stered to a subject for treating a disease state, is sufficient to effect such treatment for the disease state. The "therapeutically effective amount" will vary depending on the com pound, disease state being treated, the severity or the disease treated, the age and relative 5 health of the subject, the route and form of administration, the judgment of the attending medical or veterinary practitioner, and other factors. The terms "those defined above" and "those defined herein" when referring to a variable incorporates by reference the broad definition of the variable as well as preferred, more preferred and most preferred definitions, if any. 10 "Treating" or "treatment" of a disease state includes: (i) preventing the disease state, i.e. causing the clinical symptoms of the disease state not to develop in a subject that may be exposed to or predisposed to the disease state, but does not yet experience or display symptoms of the disease state. (ii) inhibiting the disease state, i.e., arresting the development of the disease state or its 15 clinical symptoms, or (iii) relieving the disease state , i.e., causing temporary or permanent regression of the disease state or its clinical symptoms. The terms "treating", "contacting" and "reacting" when referring to a chemical reaction means adding or mixing two or more reagents under appropriate conditions to produce 20 the indicated and/or the desired product. It should be appreciated that the reaction which produces the indicated and/or the desired product may not necessarily result directly from the combination of two reagents which were initially added, i.e., there may be one or more intermediates which are produced in the mixture which ultimately leads to the formation of the indicated and/or the desired product. 25 In general, the nomenclature used in this Application is based on AUTONOMTM v.4.0, a Beilstein Institute computerized system for the generation of IUPAC systematic nomen clature. Chemical structures shown herein were prepared using ISIS" version 2.2. Any open valency appearing on a carbon, oxygen or nitrogen atom in the structures herein indicates the presence of a hydrogen atom. 30 All patents and publications identified herein are incorporated herein by reference in their entirety. In certain embodiments of formula (I), R 5 and R 6 are hydrogen.

- 14 In certain embodiments of formula (I), R 2 is hydrogen. In certain embodiments of formula (I), X is -CH 2 - or -0-. Preferably X is 0. In certain embodiments of formula (I), D is absent. In certain embodiments of formula (1), R' is alkyl, alkenyl or cycloalkyl. Preferably, R' is 5 ethyl, cyclopropyl, isopropenyl or isopropyl. More preferably R1 is ispropyl. In certain embodiments formula (I), one of R and R 8 is hydrogen, and the other is: alkyl, cycloalkyl; cycloalkylalkyl; haloalkyl; hydroxyalky; alkoxyalkyl; alkylsulfonylalkyl; acetyl; alkylsulfonyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl. 10 In certain embodiments of formula (I), one of R and R 8 is hydrogen and the other is alkyl, hydroxyalkyl or haloalkyl. In many embodiments of formula (I), Y is -NRdR*. In certain embodiments formula (I), Y is -NRdR and one of Rd and R' is hydrogen, and the other is: alkyl, cycloalkyl; cycloalkylalkyl; haloalkyl; hydroxyalky; alkoxyalkyl; 15 alkylsulfonylalkyl; acetyl; alkylsulfonyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalcyl. In certain embodiments of formula (I), Y is -NRdR' and one of Rd and R' is hydrogen and the other is alkyl, hydroxyalkyl or haloalkyl. In certain embodiments of formula (I), R 3 and R 4 each independently is halo, alkoxy, halo 20 alkoxy or alkylsulfonyl. In certain embodiments of formula (I), R 3 is halo, alkoxy, haloalkoxy or hydroxy. Prefer ably R 3 is methoxy, fluoro, or chloro. More preferably

R

3 is methoxy. In certain embodi ments R 3 is hydroxy. In certain embodiments of formula (I), R 4 is halo, alkoxy, alkylsulfonyl or heteroaryl. 25 Preferably R 4 is methoxy, iodo, methanesulfonyl or heteroaryl. More preferably R 4 is methoxy, bromo, chloro or iodo. In specific embodiments

R

4 may be methoxy, while in other embodimets

R

4 may be iodo. In certain embodiments of formula (I), R 7 , R 8 , Rd and R' are hydrogen.

- 15 In certain embodiments of formula (I), R 4 is heteroaryl. The heteroaryl may be, in certain embodiments, tetrazolyl, pyrazolyl, oxazolyl, imidazolyl, thiazolyl, thiophenyl, triazolyl, furanyl, isoxazolyl, oxadiazolyl, benzothiophenyl, pyridinyl, or pyrrolyl. More specifically, the heteroaryl may be tetrazol-5-yl, pyrazol-1-yl, 3-methylpyrazol-1-yl, oxazol-2-yl, 5 oxazol-5-yl, imidazol-2-yl, thiazol-2-yl, thiazol-4-yl, thiophen-3-yl, 5-chloro-thiophen-2 yl, 1-methyl-imidazol-2-yl, imidazol- 1-yl, pyrazol- 3 -yl, 2-methyl-thiazol-4-yl, furan-2-yl, 3,5-dimethyl-pyrazol- 1-yl, 4,5-dihydrooxazol-2-yl, isoxazol-5-yl, [1,2,4] -oxadiazol-3-yI, benzo[bthiophen-3-yl, oxazol-4-yl, furan-3-yl, 4-methyl-thiophen-2-yl, thiazol-5-yl, tetrazol-1-yl, [1,2,4]triazol-l-yl, 2-methyl-thiazol-5-yl, 1-methyl-pyrazol-4-yl, 2-thiolyl 10 imidazol-1-yl, pyridin-2-yl, or 2,5-dimethyl-pyrrol-1-yl). In certain embodiments of formula (I), R 3 and R4 together with the atoms to which they are attached may form a five or six-membered ring that optionally includes one or two heteroatoms selected from 0, S and N. In many such embodiments

R

3 and R 4 together with the atoms to which they are attached may form: a five membered aromatic with one 15 nitrogen, i.e. a pyrrol ring; a five membered aromatic with two nitrogens, i.,e., a pyrazol or imidazol ring; a five membered aromatic with one nitrogen and one oxygen, i.e., an ox azole or isoxazole ring; a five membered aromatic with one nitrogen and one sulfur, i.e., a thiazole or isothiazole ring; a five membered aromatic with one oxygen, i.e., a furanyl ring; or a five membered aromatic with one sulfur, i.e., a thiophenyl ring. 20 In certain embodiments of formula (I), R 2 and R 3 together with the atoms to which they are attached may form a five or six-membered ring that optionally includes one or two heteroatoms selected from 0, S and N. In many such embodiments R 3 and R together with the atoms to which they are attached may form: a five membered aromatic with one nitrogen, i.e. a pyrrol ring; a five membered aromatic with two nitrogens, i.,e., a pyrazol or 25 imidazol ring; a five membered aromatic with one nitrogen and one oxygen, i.e., an ox azole or isoxazole ring; a five membered aromatic with one nitrogen and one sulfur, i.e., a thiazole or isothiazole ring; a five membered aromatic with one oxygen, i.e., a furanyl ring; or a five membered aromatic with one sulfur, i.e., a thiophenyl ring. In one preferred embodiment of formula (I), X is -0-, R' is ailcyl, alkenyl, cycloalkyl, or 30 halo, R 2 is hydrogen, R 3 is alkoxy, hydroxy or halo, R 4 is alkoxy, halo, alkenyl, or heteroaryl selected from tetrazolyl, pyrazolyl, oxazolyl, imidazolyl, thiazolyl, thiophenyl, triazolyl, furanyl, isoxazolyl, oxadiazolyl, benzothiophenyl, pyridinyl and pyrrolyl, and R 5 and R 6 are hydrogen.

-16 In another preferred embodiment of formula (I), X is -0-, R 1 is alkyl, alkenyl, cycloalkyl, or halo, R 2 is hydrogen,

R

3 is alkoxy, hydroxy or halo, R 4 is alkoxy, halo, or alkenyl, and R' and R6 are hydrogen. In another preferred embodiment of formula (I), X is -0-, R1 is alkyl, alkenyl, cycloalkyl, or 5 halo, R 2 is hydrogen, R 3 is alkoxy, hydroxy or halo, R is heteroaryl selected from tetrazolyl, pyrazolyl, oxazolyl, imidazolyl, thiazolyl, thiophenyl, triazolyl, furanyl, isoxazolyl, oxadi azolyl, benzothiophenyl, pyridinyl and pyrrolyl, and R 5 and R 6 are hydrogen. In another preferred embodiment of formula (I), X is -0-, R1 is alkyl, alkenyl, cycloalkyl, or halo, R 2 is hydrogen, R3 is alkoxy, hydroxy or halo, R 4 is alkoxy, halo, or alkenyl, R and R6 10 are hydrogen, R' and R' are hydrogen, and one of R and R is hydrogen and the other is hydrogen, alkyl, hydroxyalkyl or haloalkyl. In another preferred embodiment of formula (I), X is -0-, R' is alkyl, alkenyl, cycloalkyl, or halo, R 2 is hydrogen, R 3 is alkoxy, hydroxy or halo, R 4 is heteroaryl selected from tetrazolyl, pyrazolyl, oxazolyl, imidazolyl, thiazolyl, thiophenyl, triazolyl, furanyl, isoxazolyl, oxadi 15 azolyl, benzothiophenyl, pyridinyl and pyrrolyl, R 5 and R 6 are hydrogen,

R

7 and R are hydrogen, and one of Ra and Rb is hydrogen and the other is hydrogen, alkyl, acetyl, hydroxyalkyl or haloalkyl. In another preferred embodiment of formula (I), X is -0- or -CH 2 -, R' is isopropyl, iso propenyl, cyclopropyl or iodo, R 2 is hydrogen, R3 is alkoxy, hydroxy or halo, R4 is alkoxy or 20 halo, and R5 and R 6 are hydrogen. In another preferred embodiment of formula (I), X is -0- or -CH 2 -, R' is isopropyl, iso propenyl, cyclopropyl or iodo, R 2 is hydrogen,

R

3 is alkoxy, hydroxy or halo, R is alkoxy or halo, R and R are hydrogen, R and R 8 are hydrogen, and one of Ra and Rb is hydrogen and the other is hydrogen, alkyl, hydroxyalkyl or haloalkyl. 25 In another preferred embodiment of formula (I), X is -0- or -CH 2 -, R' is isopropyl or iodo, R 2 is hydrogen, R 3 is methoxy, hydroxy, chloro, bromo or iodo, R4 is methoxy, chloro, bromo or iodo, and R 5 and R6 are hydrogen. In another preferred embodiment of formula (I), X is -0- or -CH 2 -, R1 is isopropyl or iodo, R 2 is hydrogen, R 3 is methoxy, hydroxy, chloro, bromo or iodo, R4 methoxy, chloro, 30 bromo or iodo, R 5 and RW are hydrogen,

R

7 and R8 are hydrogen, and one of Ra and Rb is hydrogen and the other is hydrogen, alkyl, hydroxyalkyl or haloalkyl.

-17 In another preferred embodiment of formula (I), X is -0- or -CH 2 -, R1 is isopropyl, R 2 is hydrogen, R 3 is methoxy, hydroxy, chloro, bromo or iodo, R 4 is methoxy, chloro, bromo or iodo, and R 5 and R 6 are hydrogen. In another preferred embodiment of formula (I), X is -0- or -CH 2 -, R' is isopropyl, R 2 is 5 hydrogen, R 3 is methoxy, hydroxy, chloro, bromo or iodo, R 4 methoxy, chloro, bromo or iodo, R 5 and R6 are hydrogen, R'7 and R 8 are hydrogen, and one of Ra and R b is hydrogen and the other is hydrogen, alkyl, hydroxyalkyl or haloalkyl. The compounds of the invention in many embodiments may be of the formula (II) Ri

NR

7 R S N R N NRR R 4 10 wherein: X is: -CH 2 -; or -0-; R' is alkyl; alkenyl; cycloalkyl; or cycloalkenyl; or halo;

R

3 and R 4 each independently is: hydrogen; alkyl; alkenyl; amino; halo; amido; haloalkyl; alkoxy; hydroxy; haloalkoxy; nitro; hydroxyalkyl; alkoxyalkyl; hydroxyalkoxy; alkynyl 15 alkoxy; alkylsulfonyl; arylsulfonyl; cyano; aryl; heteroaryl; heterocyclyl; heterocyclyl alkoxy; aryloxy; heteroaryloxy; aralkyloxy; heteroaralkyloxy; optionally substituted phenoxy; -(CH 2 )m-(Z)n(CO)-Rfor -(CH2)m-(Z).SO2-(NR)nRf where m and n each independently is 0 or 1, Z is 0 or NR9, Rf is hydrogen, alkyl, hydroxy, alkoxy, amino, hydroxyalkyl or alkoxyalkyl, and each R9 is independently hydrogen or alkyl; or R 3 20 and R4 may together form an alkylene dioxy; or R3 and R 4 together with the atoms to which they are attached may form a five or six-membered ring that optionally in cludes one or two heteroatoms selected from 0, S and N; one of R 7 and R8 is hydrogen, and the other is: hydrogen; alkyl; cycloalkyl; cycloallcylalkyl; haloalkyl; haloalkoxy; hydroxyalky; alkoxyalkyl; acetyl; alkylsulfonyl; alkylsulfonyl 25 alkyl; aminocarbonyloxyalkyl; hydroxycarbonylalkyl; hydroxyalkyloxycarbonylalkyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl; and one of Rd and Reis hydrogen, and the other is: hydrogen; alkyl; cycloalkyl; cycloalkylalkyl; haloalkyl; haloalkoxy; hydroxyalky; alkoxyalkyl; acetyl; alkylsulfonyl; alkylsulfonyl 30 alkyl; aminocarbonyloxyalkyl; hydroxycarbonylalkyl; hydroxyalkyloxycarbonylalkyl; - 18 aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl. In certain embodiments of formula (II), R' is alkyl, alkenyl or cycloalkyl. Preferably, R' is ethyl, cyclopropyl, isopropenyl or isopropyl. More preferably R1 is ispropyl. 5 In certain embodiments formula (II), one of R' and R8 is hydrogen, and the other is: alkyl, cycloalkyl; cycloalkylalkyl; haloalkyl; hydroxyalky; alkoxyalkyl; alkylsulfonylalkyl; acetyl; alkylsulfonyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl. In certain embodiments of formula (II), one of R and R 8 is hydrogen and the other is 10 alkyl, hydroxyalkyl or haloalkyl. In certain embodiments formula (II), one of Rd and R* is hydrogen, and the other is: alkyl, cycloalkyl; cycloalkylalkyl; haloalkyl; hydroxyalky; alkoxyalkyl; alkylsulfonylalkyl; acetyl; alkylsulfonyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl. 15 In certain embodiments of formula (II), one of Rd and R* is hydrogen and the other is alkyl, hydroxyalkyl or haloalkyl. In certain embodiments of formula (II), R 3 and R 4 each independently is halo, alkoxy, haloalkoxy or alkylsulfonyl. In certain embodiments of formula (II), R 3 is halo, alkoxy, haloalkoxy or hydroxy. Prefer 20 ably R 3 is methoxy, fluoro, or chloro. More preferably R 3 is methoxy. In certain embodi ments R 3 is hydroxy. In certain embodiments of formula (II), R 4 is halo, alkoxy, alkylsulfonyl or heteroaryl. Pre ferably R 4 is methoxy, iodo, methanesulfonyl or heteroaryl. More preferably R 4 is meth oxy, bromo, chloro or iodo. In specific embodiments R 4 may be methoxy, while in other 25 embodimets R 4 may be iodo. In certain embodiments of formula (II), R', R', Rd and R' are hydrogen. In certain embodiments of formula (II), R 4 is heteroaryl. The heteroaryl may be, in certain embodiments, tetrazolyl, pyrazolyl, oxazolyl, imidazolyl, thiazolyl, thiophenyl, triazolyl, furanyl, isoxazolyl, oxadiazolyl, benzothiophenyl, pyridinyl, or pyrrolyl. More specifically, 30 the heteroaryl may be tetrazol-5-yl, pyrazol-1-yl, 3-methylpyrazol-1-yl, oxazol-2-yl, ox- -19 azol-5-yl, imidazol-2-yl, thiazol-2-yl, thiazol-4-yl, thiophen-3-yl, 5-chloro-thiophen-2-yl, 1-methyl-imidazol-2-yl, imidazol-1-yl, pyrazol-3-yl, 2-methyl-thiazol-4-yl, furan-2-yl, 3,5 dimethyl-pyrazol- 1-yl, 4,5-dihydrooxazol-2-yl, isoxazol- 5-yl, [1,2,41 -oxadiazol-3-yl, benzolb]thiophen-3-yl, oxazol-4-yl, furan-3-yl, 4-methyl-thiophen-2-yl, thiazol-5-yl, 5 tetrazol-1-yl, [1,2,4]triazol-l-yl, 2-methyl-thiazol-5-yl, 1-methyl-pyrazol-4-yl, 2-thiolyl imidazol- I-yl, pyridin-2-yl, or 2,5-dimethyl-pyrrol- 1-yl). In certain embodiments of formula (II), R 3 and R 4 together with the atoms to which they are attached may form a five or six-membered ring that optionally includes one or two heteroatoms selected from 0, S and N. In many such embodiments R 3 and R 4 together 10 with the atoms to which they are attached may form: a five membered aromatic with one nitrogen, i.e. a pyrrol ring; a five membered aromatic with two nitrogens, i.,e., a pyrazol or imidazol ring; a five membered aromatic with one nitrogen and one oxygen, i.e., an ox azole or isoxazole ring; a five membered aromatic with one nitrogen and one sulfur, i.e., a thiazole or isothiazole ring; a five membered aromatic with one oxygen, i.e., a furanyl ring; 15 or a five membered aromatic with one sulfur, i.e., a thiophenyl ring. In one preferred embodiment of formula (II), X is -0-, R1 is alkyl, alkenyl, cycloalkyl, or halo, R 3 is alkoxy, hydroxy or halo, and R 4 is alkoxy, halo, alkenyl, or heteroaryl selected from tetrazolyl, pyrazolyl, oxazolyl, imidazolyl, thiazolyl, thiophenyl, triazolyl, furanyl, isoxazolyl, oxadiazolyl, benzothiophenyl, pyridinyl and pyrrolyl. 20 In another preferred embodiment of formula (II), X is -0-, R' is alkyl, alkenyl, cycloalkyl, or halo, R 3 is alkoxy, hydroxy or halo, and R 4 is alkoxy, halo, or alkenyl. In another preferred embodiment of formula (II), X is -0-, R1 is alkyl, alkenyl, cycloalkyl, or halo, R 3 is alkoxy, hydroxy or halo, and R 4 is heteroaryl selected from tetrazolyl, pyr azolyl, oxazolyl, imidazolyl, thiazolyl, thiophenyl, triazolyl, furanyl, isoxazolyl, oxadiazolyl, 25 benzothiophenyl, pyridinyl and pyrrolyl. In another preferred embodiment of formula (II), X is -0-, R' is alkyl, alkenyl, cycloalkyl, or halo, R 3 is alkoxy, hydroxy or halo, R 4 is alkoxy, halo, or alkenyl, R and R' are hydro gen, and one of Ra and Rb is hydrogen and the other is hydrogen, alkyl, hydroxyalkyl or haloalkyl. 30 In another preferred embodiment of formula (II), X is -0-, R1 is alkyl, alkenyl, cycloalkyl, or halo, R 3 is alkoxy, hydroxy or halo, R 4 is heteroaryl selected from tetrazolyl, pyrazolyl, oxazolyl, imidazolyl, thiazolyl, thiophenyl, triazolyl, furanyl, isoxazolyl, oxadiazolyl, benzo- - 20 thiophenyl, pyridinyl and pyrrolyl, R and R 8 are hydrogen, and one of R' and Rb is hydro gen and the other is hydrogen, alkyl, acetyl, hydroxyalkyl or haloalkyl. In another preferred embodiment of formula (II), X is -0- or -CH 2 -, R' is isopropyl, iso propenyl, cyclopropyl or iodo, R 3 is alkoxy, hydroxy or halo, and R 4 is alkoxy or halo. 5 In another preferred embodiment of formula (II), X is -0- or -CH 2 -, R1 is isopropyl, iso propenyl, cyclopropyl or iodo, R 3 is alkoxy, hydroxy or halo, R 4 is alkoxy or halo, R and R 8 are hydrogen, and one of Ra and Rb is hydrogen and the other is hydrogen, alkyl, hydroxy alkyl or haloalkyl. In another preferred embodiment of formula (II), X is -0- or -CH 2 -, R' is isopropyl or 10 iodo, R 3 is methoxy, hydroxy, chloro, bromo or iodo, and R 4 is methoxy, chloro, bromo or iodo. In another preferred embodiment of formula (II), X is -0- or -CH 2 -, R' is isopropyl or iodo, R 3 is methoxy, hydroxy, chloro, bromo or iodo, R 4 methoxy, chloro, bromo or iodo,

R

7 and R 8 are hydrogen, and one of Ra and Rb is hydrogen and the other is hydrogen, alkyl, 15 hydroxyalkyl or haloalkyl. In another preferred embodiment of formula (II), X is -0- or -CH 2 -, R' is isopropyl, R 3 is methoxy, hydroxy, chloro, bromo or iodo, and R 4 is methoxy, chloro, bromo or iodo. In another preferred embodiment of formula (II), X is -0- or -CH 2 -, R, is isopropyl, R 3 is methoxy, hydroxy, chloro, bromo or iodo, R 4 methoxy, chloro, bromo or iodo, R 7 and R 8 20 are hydrogen, and one of Ra and Rb is hydrogen and the other is hydrogen, alkyl, hydroxy alkyl or haloalkyl. The compounds of the invention in certain embodiments may be of the formula (III) R NR 7

R

8 N I N.N (III)

R

3 - N~< NRdRe R4 wherein: 25 R' is isopropyl; isopropenyl; cyclopropyl; or iodo; R3 and R 4 each independently is: hydrogen; alkyl; alkenyl; amino; halo; amido; haloalkyl; alkoxy; hydroxy; haloalkoxy; nitro; hydroxyalkyl; alkoxyalkyl; hydroxyalkoxy; alkynyl alkoxy; alkylsulfonyl; arylsulfonyl; cyano; aryl; heteroaryl; heterocyclyl; heterocyclyl- - 21 alkoxy; aryloxy; heteroaryloxy; aralkyloxy; heteroaralkyloxy; optionally substituted phenoxy; -(CH 2 )m-(Z)n-(CO)-Rf or -(CH2)m-(Z)n-SOr (NR9).-Rwhere m and n each independently is 0 or 1, Z is 0 or NRO, Rf is hydrogen, alkyl, hydroxy, alkoxy, amino, hydroxyalkyl or alkoxyalkyl, and each R is independently hydrogen or alkyl; or R 3 5 and R' may together form an alkylene dioxy; or R 3 and R 4 together with the atoms to which they are attached may form a five or six-membered ring that optionally in cludes one or two heteroatoms selected from 0, S and N; one of R 7 and R 8 is hydrogen, and the other is: hydrogen; alkyl; cycloalkyl; cycloalkylalkyl; haloalkyl; haloalkoxy; hydroxyalky; alkoxyalkyl; acetyl; alkylsulfonyl; alkylsulfonyl 10 alkyl; aminocarbonyloxyalkyl; hydroxycarbonylalkyl; hydroxyalkyloxycarbonylalkyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl; and one of Rd and R! is hydrogen, and the other is: hydrogen; alkyl; cycloalkyl; cycloalkylalkyl; haloalkyl; haloalkoxy; hydroxyalky; alkoxyalkyl; acetyl; alkylsulfonyl; alkylsulfonyl 15 alkyl; aminocarbonyloxyalkyl; hydroxycarbonylalkyl; hydroxyalkyloxycarbonylalkyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl. In other embodiments the subject compounds may be of the formula (IV) R

NR

7

R

8 O -1RN (IV) R3 N' NR R" R4 20 wherein: R1 is: alkyl; alkenyl; cycloalkyl; or cycloalkenyl;

R

3 and R 4 each independently is: hydrogen; alkyl; alkenyl; amino; halo; amido; haloalkyl; alkoxy; hydroxy; haloalkoxy; nitro; hydroxyalkyl; alkoxyalkyl; hydroxyalkoxy; alk ynylalkoxy; alkylsulfonyl; arylsulfonyl; cyano; aryl; heteroaryl; heterocyclyl; hetero 25 cyclylalkoxy; aryloxy; heteroaryloxy; aralkyloxy; heteroaralkyloxy; optionally substi tuted phenoxy; -(CH 2 )m-(Z)n-(CO)-Rf or -(CH2)m-(Z)n-S0r(NRg),-R where m and n each independently is 0 or 1, Z is 0 or NR9, Rf is hydrogen, alkyl, hydroxy, alkoxy, amino, hydroxyalkyl or alkoxyalkyl, and each R9 is independently hydrogen or alkyl; or R 3 and R 4 may together form an alkylene dioxy; or R 3 and R 4 together with the 30 atoms to which they are attached may form a five or six-membered ring that optional ly includes one or two heteroatoms selected from 0, S and N; -22 one of R 7 and R 8 is hydrogen, and the other is: hydrogen; alkyl; cycloalkyl; cycloalkylalkyl; haloalkyl; haloalkoxy; hydroxyalky; alkoxyalkyl; acetyl; alkylsulfonyl; alkylsulfonyl alkyl; aminocarbonyloxyalkyl; hydroxycarbonylalkyl; hydroxyalkyloxycarbonylalkyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; 5 or heterocyclylalkyl; and one of Rd and R' is hydrogen, and the other is: hydrogen; alkyl; cycloalkyl; cycloalkylalkyl; haloalkyl; haloalkoxy; hydroxyalky; alkoxyalkyl; acetyl; alkylsulfonyl; alkylsulfonyl alkyl; aminocarbonyloxyalkyl; hydroxycarbonylalkyl; hydroxyalkyloxycarbonylalkyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; 10 or heterocyclylalkyl. In certain embodiments of formula (IV), R 1 is alkyl, alkenyl or cycloalkyl. Preferably, R' is ethyl, cyclopropyl, isopropenyl or isopropyl. More preferably R' is ispropyl. In certain embodiments formula (III) or formula (IV), one of R 7 and R is hydrogen, and the other is: alkyl, cycloalkyl; cycloalkylalkyl; haloalkyl; hydroxyalky; alkoxyalkyl; alkyl 15 sulfonylalkyl; acetyl; alkylsulfonyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl. In certain embodiments of formula (III) or formula (IV), one of R 7 and R 8 is hydrogen and the other is alkyl, hydroxyalkyl or haloalkyl. In certain embodiments formula (III) or formula (IV), one of Rd and R* is hydrogen, and 20 the other is: alkyl, cycloalkyl; cycloalkylalkyl; haloalkyl; hydroxyalky; alkoxyalkyl; alkyl sulfonylalkyl; acetyl; alkylsulfonyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl. In certain embodiments of formula (III) or formula (IV), one of Rd and R is hydrogen and the other is alkyl, hydroxyalkyl or haloalkyl. 25 In certain embodiments of formula (III) or formula (IV), R 3 and R4 each independently is halo, alkoxy, haloalkoxy or alkylsulfonyl. In certain embodiments of formula (III) or formula (IV), Ris halo, alkoxy, haloalkoxy or hydroxy. Preferably R 3 is methoxy, fluoro, or chloro. More preferably R 3 is methoxy. In certain embodiments R 3 is hydroxy. 30 In certain embodiments of formula (III) or formula (IV), R 4 is halo, alkoxy, alkylsulfonyl or heteroaryl. Preferably R 4 is methoxy, iodo, methanesulfonyl or heteroaryl. More prefer- -23 ably R 4 is methoxy, bromo, chloro or iodo. In specific embodiments R 4 may be methoxy, while in other embodimets R 4 may be iodo. In certain embodiments of formula (III) or formula (IV), R 7 , R 8 , Rd and Re are hydrogen. In certain embodiments of formula (III) or formula (IV), R 4 is heteroaryl. The heteroaryl 5 may be, in certain embodiments, tetrazolyl, pyrazolyl, oxazolyl, imidazolyl, thiazolyl, thio phenyl, triazolyl, furanyl, isoxazolyl, oxadiazolyl, benzothiophenyl, pyridinyl, or pyrrolyl. More specifically, the heteroaryl may be tetrazol-5-yl, pyrazol-1-yl, 3-methylpyrazol-1-yl, oxazol-2-yl, oxazol-5-yl, imidazol-2-yl, thiazol-2-yl, thiazol-4-yl, thiophen-3-yl, 5-chloro thiophen-2-yl, 1-methyl-imidazol-2-yl, imidazol-1-yl, pyrazol-3-yl, 2-methyl-thiazol-4-yl, 10 furan-2-yl, 3,5-dimethyl-pyrazol-1-yl, 4,5-dihydrooxazol-2-yl, isoxazol-5-yl, [1,2,4]-oxa diazol-3-yl, benzo[b]thiophen-3-yl, oxazol-4-yl, furan-3-yl, 4-methyl-thiophen-2-yl, thi azol-5-yl, tetrazol- 1-yl, [1,2,4] triazol- 1-yl, 2-methyl-thiazol-5-yl, I -methyl-pyrazol-4-yl, 2 thiolyl-imidazol-1-yl, pyridin-2-yl, or 2,5-dimethyl-pyrrol-1-yl). In certain embodiments of formula (III) or formula (IV), R 3 and R 4 together with the 15 atoms to which they are attached may form a five or six-membered ring that optionally in cludes one or two heteroatoms selected from 0, S and N. In many such embodiments R 3 and R 4 together with the atoms to which they are attached may form: a five membered aromatic with one nitrogen, i.e. a pyrrol ring; a five membered aromatic with two nitro gens, i.,e., a pyrazol or imidazol ring; a five membered aromatic with one nitrogen and one 20 oxygen, i.e., an oxazole or isoxazole ring; a five membered aromatic with one nitrogen and one sulfur, i.e., a thiazole or isothiazole ring; a five membered aromatic with one oxygen, i.e., a furanyl ring; or a five membered aromatic with one sulfur, i.e., a thiophenyl ring. The compounds of the invention in certain embodiments may be of the formula (V)

H

3 C

CH

3 NRR 8 I N(V) 3 Nd Re R N NRR

R

4 25 wherein:

R

3 and R 4 each independently is: hydrogen; alkyl; alkenyl; amino; halo; amido; haloalkyl; alkoxy; hydroxy; haloalkoxy; nitro; hydroxyalkyl; alkoxyalkyl; hydroxyalkoxy; alkynyl alkoxy; alkylsulfonyl; arylsulfonyl; cyano; aryl; heteroaryl; heterocyclyl; heterocyclyl alkoxy; aryloxy; heteroaryloxy; aralkyloxy; heteroaralkyloxy; optionally substituted - 24 phenoxy; -(CH 2 )m-(Z)n-(CO)-Rf or -(CH2)m-(Z)n-SOr (NRV)n-Rwhere m and n each independently is 0 or 1, Z is 0 or NRO, Rf is hydrogen, alkyl, hydroxy, alkoxy, amino, hydroxyalkyl or alkoxyalkyl, and each R9 is independently hydrogen or alkyl; or R' and R 4 may together form an alkylene dioxy; orR 3 and R 4 together with the atoms to 5 which they are attached may form a five or six-membered ring that optionally in cludes one or two heteroatoms selected from 0, S and N; one of R 7 and R 8 is hydrogen, and the other is: hydrogen; alkyl; cycloalkyl; cycloalkylalkyl; haloalkyl; haloalkoxy; hydroxyalky; alkoxyalkyl; acetyl; alkylsulfonyl; alkylsulfonyl alkyl; aminocarbonyloxyalkyl; hydroxycarbonylalkyl; hydroxyalkyloxycarbonylalkyl; 10 aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl; and d one of R and R! is hydrogen, and the other is: hydrogen; alkyl; cycloalkyl; cycloalkylalkyl; haloalkyl; haloalkoxy; hydroxyalky; alkoxyalkyl; acetyl; alkylsulfonyl; alkylsulfonyl alkyl; aminocarbonyloxyalkyl; hydroxycarbonylalkyl; hydroxyalkyloxycarbonylalkyl; 15 aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl. In other embodiments the subject compounds may be of the formula (VI)

H

3 C CH 3

NR

7 Ra R Oe NRR R4 wherein: 20 R 3 and R 4 each independently is: hydrogen; alkyl; alkenyl; amino; halo; amido; haloalkyl; alkoxy; hydroxy; haloalkoxy; nitro; hydroxyalkyl; alkoxyalkyl; hydroxyalkoxy; alkynyl alkoxy; alkylsulfonyl; arylsulfonyl; cyano; aryl; heteroaryl; heterocyclyl; heterocyclyl alkoxy; aryloxy; heteroaryloxy; aralkyloxy; heteroaralkyloxy; optionally substituted phenoxy; -(CH 2 )m-(Z)n-(CO)-Rf or -(CH2)m-(Z)n-SOr(NRE),-Rfwhere m and n each 25 independently is 0 or 1, Z is 0 or NRE, Rf is hydrogen, alkyl, hydroxy, alkoxy, amino, hydroxyalkyl or alkoxyalkyl, and each R9 is independently hydrogen or alkyl; or R 3 and R 4 may together form an alkylene dioxy; or R 3 and R 4 together with the atoms to which they are attached may form a five or six-membered ring that optionally in cludes one or two heteroatoms selected from 0, S and N; 30 one of R 7 and R" is hydrogen, and the other is: hydrogen; alkyl; cycloalkyl; cycloalkylalkyl; haloalkyl; haloalkoxy; hydroxyalky; alkoxyalkyl; acetyl; alkylsulfonyl; alkylsulfonyl- - 25 alkyl; aminocarbonyloxyalkyl; hydroxycarbonylalkyl; hydroxyalkyloxycarbonylalkyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl; and one of Rd and Re is hydrogen, and the other is: hydrogen; alkyl; cycloalkyl; cycloalkylalkyl; 5 haloalkyl; haloalkoxy; hydroxyalky; alkoxyalkyl; acetyl; alkylsulfonyl; alkylsulfonyl alkyl; aminocarbonyloxyalkyl; hydroxycarbonylalkyl; hydroxyalkyloxycarbonylalkyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl. In certain embodiments formula (V) or formula (V), one of R 7 and R 8 is hydrogen, and the 10 other is: alkyl, cycloalkyl; cycloalkylalkyl; haloalkyl; hydroxyalky; alkoxyalkyl; alkylsulfon ylalkyl; acetyl; alkylsulfonyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; hetero arylsulfonyl; heterocyclyl; or heterocyclylalkyl. In certain embodiments of formula (V) or formula (V), one of R 7 and R 8 is hydrogen and the other is alkyl, hydroxyalkyl or haloalkyl. 15 In certain embodiments formula (V) or formula (V), one of Rd and R' is hydrogen, and the other is: alkyl, cycloalkyl; cycloalkylalkyl; haloalkyl; hydroxyalky; alkoxyalkyl; alkylsulfon ylalkyl; acetyl; alkylsulfonyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; hetero arylsulfonyl; heterocyclyl; or heterocyclylalkyl. In certain embodiments of formula (V) or formula (V), one of Rd and R' is hydrogen and 20 the other is alkyl, hydroxyalkyl or haloalkyl. In certain embodiments of formula (V) or formula (V), R 3 and R 4 each independently is halo, alkoxy, haloalkoxy or alkylsulfonyl. In certain embodiments of formula (V) or formula (V), R 3 is halo, alkoxy, haloalkoxy or hydroxy. Preferably R 3 is methoxy, fluoro, or chloro. More preferably R 3 is methoxy. In 25 certain embodiments R 3 is hydroxy. In certain embodiments of formula (V) or formula (V), R 4 is halo, alkoxy, alkylsulfonyl or heteroaryl. Preferably R 4 is methoxy, iodo, methanesulfonyl or heteroaryl. More prefer ably R 4 is methoxy, bromo, chloro or iodo. In specific embodiments R 4 may be methoxy, while in other embodimets R 4 may be iodo. 30 In certain embodiments of formula (V) or formula (V), R 7 , R , Rd and Re are hydrogen.

-26 In certain embodiments of formula (V) or formula (V), R 4 is heteroaryl. The heteroaryl may be, in certain embodiments, tetrazolyl, pyrazolyl, oxazolyl, imidazolyl, thiazolyl, thio phenyl, triazolyl, furanyl, isoxazolyl, oxadiazolyl, benzothiophenyl, pyridinyl, or pyrrolyl. More specifically, the heteroaryl may be tetrazol-5-yl, pyrazol-1-yl, 3-methylpyrazol-1-yl, 5 oxazol-2-yl, oxazol-5-yl, imidazol-2-yl, thiazol-2-yl, thiazol-4-yl, thiopben-3-yl, 5-chloro thiophen-2-yl, 1-methyl-imidazol-2-yl, imidazol-1-yl, pyrazol-3-yl, 2-methyl-thiazol-4-yi, furan-2-yl, 3,5-dimethyl-pyrazol-1-yl, 4,5-dihydrooxazol-2-yl, isoxazol-5-yl, [1,2,4]-oxa diazol-3-yl, benzo[bthiophen-3-yl, oxazol-4-yl, furan-3-yl, 4-methyl-thiophen-2-yl, thi azol-5-yl, tetrazol-1-yl, [1,2,4]triazol-1-yl, 2-methyl-thiazol-5-yl, 1-methyl-pyrazol-4-yl, 2 10 thiolyl-imidazol- 1-yl, pyridin-2-yl, or 2,5-dimethyl-pyrrol- 1-yl). In certain embodiments of formula (V) or formula (V), R 3 and R 4 together with the atoms to which they are attached may form a five or six-membered ring that optionally includes one or two heteroatoms selected from 0, S and N. In many such embodiments R 3 and R 4 together with the atoms to which they are attached may form: a five membered aromatic 15 with one nitrogen, i.e. a pyrrol ring; a five membered aromatic with two nitrogens, i.,e., a pyrazol or imidazol ring; a five membered aromatic with one nitrogen and one oxygen, i.e., an oxazole or isoxazole ring; a five membered aromatic with one nitrogen and one sulfur, i.e., a thiazole or isothiazole ring; a five membered aromatic with one oxygen, i.e., a furanyl ring; or a five membered aromatic with one sulfur, i.e., a thiophenyl ring. 20 In certain embodiments, the compounds of the invention may be of the formula (VII) R NR R 2 R X N (VII) A , N NR R - E wherein: X is -CH 2 -; or -0-; R' is alkyl; alkenyl; cycloalkyl; or cycloalkenyl; or halo; 25 R 2 is hydrogen; alkyl; alkenyl; amino; halo; amido; haloalkyl; alkoxy; hydroxy; haloalk oxy; nitro; hydroxyalkyl; alkoxyalkyl; hydroxyalkoxy; alkynylalkoxy; alkylsulfonyl; arylsulfonyl; cyano; aryl; heteroaryl; heterocyclyl; heterocyclylalkoxy; aryloxy; hetero aryloxy; aralkyloxy; heteroaralkyloxy; optionally substituted phenoxy; or -(CH2)m (Z),-(CO)-R' or -(CH2)m-(Z)n-SO2-(NR)n-Rf where m and n each independently is 0 30 or 1, Z is 0 or NR9, Rf is hydrogen, alkyl, hydroxy, alkoxy, amino, hydroxyalkyl or alk oxyalkyl, and each R9 is independently hydrogen or alkyl; - 27 one of R and R 8 is hydrogen, and the other is: hydrogen; alkyl; cycloalkyl; cycloalkylalkyl; haloalkyl; haloalkoxy, hydroxyalky; alkoxyalkyl; acetyl; alkylsulfonyl; alkylsulfonyl alkyl; aminocarbonyloxyalkyl; hydroxycarbonylalkyl; hydroxyalkyloxycarbonylalkyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; 5 or heterocyclylalkyl; one of R and Re is hydrogen, and the other is: hydrogen; alkyl; cycloalkyl; cycloalkylalkyl; haloalkyl; haloalkoxy; hydroxyalky; alkoxyalkyl; acetyl; alkylsulfonyl; alkylsulfonyl alkyl; aminocarbonyloxyalkyl; hydroxycarbonylalkyl; hydroxyalkyloxycarbonylalkyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; 10 or heterocyclylalkyl; Q is CR 9 , one of A and E is 0, S or NR 0 and the other is CR 9 or N; or Q is N, one of A and E is NR' 0 and the other is CR 9 ; each R 9 is independently hydrogen, alkyl, halo or alkoxy; and R'O is hydrogen, alkyl, hydroxyalkyl, alkoxyalkyl, -(CH 2 )m-(Z)-(CO)-Rf, or -(CH2)m 15 (Z)n-S0 2 -(NRg)n-R. In certain embodiments of formula (VII), A is NR1", and Q and E are CR9. In certain embodiments of formula (VII) E is NR', and A and Q are CR9. In certain embodiments of formula (VII), Q is NR, and A and E are CR 9 . In certain embodiments of formula (VII), A is 0, E is N, and Q is CR9. 20 In certain embodiments of formula (VII), A is N, E is 0, and Q is CR9. In certain embodiments of formula (VII), A is S, E is N, and Q is CR 9 . In certain embodiments of formula (VII), A is N, E is S, and Q is CR 9 . In certain embodiments of formula (VII), E is S, and A and Q are CR 9 . In certain embodiments of formula (VII), E is N, and A and Q are CR 9 . 25 In certain embodiments of formula (VII), A is S, and E and Q are CR9. In certain embodiments of formula (VII), A is S, and E and Q are CR9. In certain embodiments of formula (VII), A is 0, is N, and E is CR 9 . 9 In certain embodiments of formula (VII), E is NR' 0 , Q is N, and A is CR .

- 28 In certain embodiments of formula (VII), R 2 is hydrogen. In certain embodiments of formula (VII), X is -CH 2 - or -0-. Preferably X is 0. In certain embodiments of formula (VII), R' is alkyl, alkenyl or cycloalkyl. Preferably, R' is ethyl, cyclopropyl, isopropenyl or isopropyl. More preferably R' is ispropyl. 5 In certain embodiments formula (VII), one of R 7 and R 8 is hydrogen, and the other is: alkyl, cycloalkyl; cycloalkylalkyl; haloalkyl; hydroxyalky; alkoxyalkyl; alkylsulfonylalkyl; acetyl; alkylsulfonyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroaryl sulfonyl; heterocyclyl; or heterocyclylalkyl. In certain embodiments of formula (VII), one of R 7 and R8 is hydrogen and the other is 10 alkyl, hydroxyalkyl or haloalkyl. In certain embodiments formula (VII), one of Rd and R' is hydrogen, and the other is: alkyl, cycloalkyl; cycloalkylalkyl; haloalkyl; hydroxyalky; alkoxyalkyl; alkylsulfonylalkyl; acetyl; alkylsulfonyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroaryl sulfonyl; heterocyclyl; or heterocyclylalkyl. 15 In certain embodiments of formula (VII), one of Rd and R' is hydrogen and the other is alkyl, hydroxyalkyl or haloalkyl. In certain embodiments of formula (VII), R 7 , R 8 , Rd and R* are hydrogen. In other embodiments of the invention, the compounds may be of the formula (VIII) R NR 7 R A X QN (VIII) d e N NR R R4 20 wherein: X is: -CH 2 -; or -0-; R' is: alkyl; alkenyl; cycloalkyl; or cycloalkenyl; or halo;

R

4 is: hydrogen; alkyl; alkenyl; amino; halo; amido; haloalkyl; alkoxy; hydroxy; haloalk oxy; nitro; hydroxyalkyl; alkoxyalkyl; hydroxyalkoxy; alkynylalkoxy; alkylsulfonyl; 25 arylsulfonyl; cyano; aryl; heteroaryl; heterocyclyl; heterocyclylalkoxy; aryloxy; hetero aryloxy; aralkyloxy; heteroaralkyloxy; optionally substituted phenoxy; or -(CH2)m (Z).-(CO)-Rfor -(CH2),-(Z)n-SO2-(NR )n-Rfwhere m and n each independently is 0 -29 or 1, Z is 0 or NR9, Rf is hydrogen, alkyl, hydroxy, alkoxy, amino, hydroxyalkyl or alkoxyalkyl, and each R8 is independently hydrogen or alkyl; one of R 7 and R' is hydrogen, and the other is: hydrogen; alkyl; cycloalkyl; cycloalkylalkyl; haloalkyl; haloalkoxy; hydroxyalky; alkoxyalkyl; acetyl; alkylsulfonyl; alkylsulfonyl 5 alkyl; aminocarbonyloxyalkyl; hydroxycarbonylalkyl; hydroxyalkyloxycarbonylalkyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl; one of R and Reis hydrogen, and the other is: hydrogen; alkyl; cycloalkyl; cycloalkylalkyl; haloalkyl; haloalkoxy; hydroxyalky; alkoxyalkyl; acetyl; alkylsulfonyl; alkylsulfonyl 10 alkyl; aminocarbonyloxyalkyl; hydroxycarbonylalkyl; hydroxyalkyloxycarbonylalkyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl; Q is CR 9 , one of A and E is 0, S or NR' 0 and the other is CR 9 or N; or Q is N, one of A and E is NR' 0 and the other is CR 9 ; 15 each R 9 is independently hydrogen, alkyl, halo or alkoxy; and R1 0 is hydrogen, alkyl, hydroxyalkyl, alkoxyalkyl, -(CH 2 ).-(Z).-(CO)-Rf, or -(CH 2 )m (Z),,-SO2-(NRB)n-R. In certain embodiments of formula (VIII), A is NR' 0 , and Q and E are CR 9 . In certain embodiments of formula (VIII) E is NR'", and A and Q are CR9. 20 In certain embodiments of formula (VIII), Q is NR'O, and A and E are CR 9 . In certain embodiments of formula (VIII), A is 0, E is N, and Q is CR 9 . In certain embodiments of formula (VIII), A is N, E is 0, and Q is CR 9 . In certain embodiments of formula (VIII), A is S, E is N, and Q is CR 9 . In certain embodiments of formula (VIII), A is N, E is S, and Q is CR 9 . 25 In certain embodiments of formula (VIII), E is S, and A and Q are CR 9 . In certain embodiments of formula (VIII), E is 0, and A and Q are CR 9 . In certain embodiments of formula (VIII), A is S, and E and Q are CR 9 . In certain embodiments of formula (VIII), A is 0, and E and Q are CR 9 . In certain embodiments of formula (VIII), A is NR' 0 , Q is N, and E is CR9.

- 30 In certain embodiments of formula (VIII), E is NR'", Q is N, and A is CR9. In certain embodiments of formula (VIII), X is -CH,- or -0-. Preferably X is 0. In certain embodiments of formula (VIII), R' is alkyl, alkenyl or cycloalkyl. Preferably, R1 is ethyl, cyclopropyl, isopropenyl or isopropyl. More preferably R1 is ispropyl. 5 In certain embodiments formula (VIII), one of R' and R" is hydrogen, and the other is: alkyl, cycloalkyl; cycloalkylalkyl; haloalkyl; hydroxyalky; alkoxyalkyl; alkylsulfonylalkyl; acetyl; alkylsulfonyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroaryl sulfonyl; heterocyclyl; or heterocyclylalkyl. In certain embodiments of formula (VIII), one of R 7 and R 8 is hydrogen and the other is 10 alkyl, hydroxyalkyl or haloalkyl. In certain embodiments formula (VIII), one of Rd and Re is hydrogen, and the other is: alkyl, cycloalkyl; cycloalkylalkyl; haloalkyl; hydroxyalky; alkoxyalkyl; alkylsulfonylalkyl; acetyl; alkylsulfonyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroaryl sulfonyl; heterocyclyl; or heterocyclylalkyl. 15 In certain embodiments of formula (VIII), one of Rd and R" is hydrogen and the other is alkyl, hydroxyalkyl or haloalkyl. In certain embodiments of formula (VIII), R 7 , R 8 , Rd and R* are hydrogen. In certain embodiments of formula (VIII), R 4 is halo, alkoxy, haloalkoxy or alkylsulfonyl. In certain embodiments of formula (VIII), R 4 is halo, alkoxy, alkylsulfonyl or heteroaryl. 20 Preferably R 4 is methoxy, iodo, methanesulfonyl or heteroaryl. More preferably R 4 is methoxy, bromo, chloro or iodo. In specific embodiments R 4 may be methoxy, while in other embodiments R 4 may be iodo. In certain embodiments of formula (VIII), R 4 is heteroaryl. The heteroaryl may be, in certain embodiments, tetrazolyl, pyrazolyl, oxazolyl, imidazolyl, thiazolyl, thiophenyl, 25 triazolyl, furanyl, isoxazolyl, oxadiazolyl, benzothiophenyl, pyridinyl, or pyrrolyl. More specifically, the heteroaryl may be tetrazol-5-yl, pyrazol-1-yl, 3-methylpyrazol-1-yl, oxazol 2-yl, oxazol-5-yl, imidazol-2-yl, thiazol-2-yl, thiazol-4-yl, thiophen-3-yl, 5-chloro-thio phen-2-yl, 1-methyl-imidazol-2-yl, imidazol-1-yl, pyrazol-3-yl, 2-methy-thiazol-4-yl, furan-2-yl, 3,5-dimethyl-pyrazol- 1 -yl, 4,5-dihydrooxazol-2-yl, isoxazol-5-yl, [1,2,4] -oxa 30 diazol-3-yl, benzo[bithiophen-3-yl, oxazol-4-yl, furan-3-yl, 4-methyl-thiophen-2-yl, thi- - 31 azol-5-yl, tetrazol-1-yl, [1,2,41triazol-l-yl, 2-methyl-thiazol-5-yl, 1-methyl-pyrazol-4-yl, 2 thiolyl-imidazol-1-yl, pyridin-2-yl, or 2,5-dimethyl-pyrrol-1-yl). In embodiments of the invention where any of R 7 , R8, Rd or Re are heterocyclyl or a group that includes a heterocyclyl moiety, such heterocyclyl or heterocyclyl moiety may be pipe 5 ridinyl, piperazinyl, tetrahydrofuranyl, tetrahydrothiopyranyl, or 1,1-dioxotetrahydrothio pyranyl. More preferably, such heterocyclyl or heterocyclyl moiety may be piperidin-4-yl, 1-methyl-piperidine-4-yl, 1-methanesulfonyl-piperidin-4-yl, tetrahydropyran-4-yl, tetra hydrothiopyran- 4 -yl, or 1,1-dioxotrahydrothiopyran-4-yl. Where any of R', R 2 , R 3 , R 4 , R', R 6 , R 7 , R 8 , R!, R" 0 , RC, Rd, R , Rf, R9, or Rh is alkyl or con 10 tains an alkyl moiety, such alkyl is preferably lower alkyl, i.e. Ci-C 6 alkyl, and more prefer ably Ci-C 4 alkyl. The invention also provides methods for treating a disease mediated by a P2X 3 receptor antagonist, a P2X/ 3 receptor antagonist, or both, the method comprising administering to a subject in need thereof an effective amount of a compound of any of formulas (I) 15 through (VIII). The disease may be genitorurinary disease or urinary tract disease. In other instances the disease may be a disease is associated with pain. The urinary tract di sease may be: reduced bladder capacity; frequenct micturition; urge incontinence; stress incontinence; bladder hyperreactivity; benign prostatic hypertrophy; prostatitis; detrusor hyperreflexia; urinary frequency; nocturia; urinary urgency; overactive bladder; pelvic 20 hypersensitivity; urethritis; prostatitits,; pelvic pain syndrome; prostatodynia; cystitis; or idiophatic bladder hypersensitivity. The disease associated with pain may be: inflamma tory pain; surgical pain; visceral pain; dental pain; premenstrual pain; central pain; pain due to burns; migraine or cluster headaches; nerve injury; neuritis; neuralgias; poisoning; ischemic injury; interstitial cystitis; cancer pain; viral, parasitic or bacterial infection; post 25 traumatic injury; or pain associated with irritable bowel syndrome. Representative compounds in accordance with the methods of the invention are shown in Table 1. Table 1: # Name 1 N*2*-Isopropyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-N*4*-methyl-pyrimidine 2,4-diamine 2 5-( 2 -Isopropyl-4,5-dimethoxy-phenoxy)-pyrimidine-2,4-diamine 3 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N* 4 *-isoxazol-5-ylmethyl-pyrimidine-2,4- - 32 diamine 4 N*2*-lsopropy-5-(-spoy-45dmt ybezl-yiiin-,-imn 5 5- (2-1sopropy1-4,5-dimlethoxy-beflzy -N4-2mtoybny)prmci~-, diarnine 6 5- (2-Isopropy1-4,5-dimethoxy-belzyl) -N*2*- (2,2,2-trifluoro-ethyl)-pyrimidcle- 2 ,4 diamine 7 3- [2-Amino-5-(2-isopropyl-4,5-dimethoXY-belzyl) -pyrimidin-4-ylaminlI -propane 1 ,2-diol 8 N-[ 4 -Amino-5-(2-isopropyl-4,5dimetho -ben Y1)-pyrimidifl-2-yl] -acetamide 9 5-(2-1sopropy1 -4,5-dimehoxy-belzyl)- N*4*-(4-methoxy-beflzyl-pyrimidine- 2

,

4 diamine 10 5-( 2-1sopropyl-4,5-dimethoxy-belzyl) -N*4* -pheny1-pyrimidifle-2,4-diamlifle diamine 12 5-(5-Choro 2isopropy4methoxybeflzyl)pyIimidi e2,4diamine 13 N* *-lsobutyl-N*2 *isopropyl-5(2isopropy4,5drethoxy-benzyl)>pyrimidine 2,4-diamine 14 5-(2-1sopropyl-4,5-dimethoxy-belzyl) N2-hnl-yiiie-,-imn 15 N* 2

*,N*

4 *-Diisopropyl5(-isopropyl-4,5dimethoxy-ben yl)-pyrmidine- 2 ,t diamine 16 -5-SChoro2isopropy4methoxy-befzyl)N*2 -isopropylipyrimidine- 2 ,1 diamine 17 2- [2-mn--2iorpl-,-iehx-ezl prmln4yaio-ethanol 19 5-(2-Isopropyl-4,5-dimethoxy-beflY)

N*

4 * -[2- (4-methoxy-phenyl) -ethyl] pyrimidine-2,4-diamine 20 2*Bnzl5 -spoy4,-iehxbnzl-pyrimidine-2,4-diamine 215- (2-Isopropyl-4,5-dimethocy-belzyl) 1N*4*- (4-methanesulfolyl-cyclohexyl) pyrirnidine-2,4-dianiine 22 N*2*-Cyclopropy-5-

(

2 -isopropyl-4,5dimethOxybeflzyl>p)imidine24diamine 23 N*4* -Isopropyl-5-( 2 -isopropyl45dmthoxybefzyl)Tyrimidine 2 4diamine 24 N*2* -Ehl -(-s)rpl ,-iehx-ezl-yin n-,-imn 25 5-( 2-Isopropy1-4,5-dimethox-ybelzil)-N* 4 *-12- (3-methoxy-pheflyl) -ethyl] pyrimidine-2,4-diamifle 216 2- [4-Amino-5-(

(

2 sopropyl-4,5diethox-ybelzyl-pyrimidin2-ylamino] -thanol 27 5-(2-sec-Bu y-4,5 dimethoxy-benzyl) -pyrimidine-2,4-diamifle -33 28 N*2*-tert-Butyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine 29 N*2*-Isobutyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine 30 5-(5-Chloro-2-isopropyl-4-methoxy-benzyl)-N*2*-cyclopropyl-pyrimidine-2,4 diamine 31 5- (2-Isopropyl-4-methoxy-5-phenoxy-benzyl)-pyrimidine-2,4-diamine 32 N*4*-Isobutyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine 33 i*-4*-Ethyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine 34 N*4*-Benzyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine- 2

,

4 -diamine 35 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N*4*-(2,2,2-trifluoro-ethyl)-pyrimidine-2,4 diamine 36 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N*2*-(4-methoxy-phenyl)-pyrimidine-2,4 diamine 37 N*2*-Isopropyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-N*4*-phenyl-pyrimidine 2,4-diamine 38 N*4*-Ethyl-N*2*-isopropyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4 diamine 39 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N*4*-(1-methyl-piperidin-4-yl)-pyrimidine 2,4-diamine 40 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N*2*-(2-methoxy-phenyl)-pyrimidine-2,4 diamine 41 5-(4,5-Dichloro-2-isopropyl-benzyl)-pyrimidine-2,4-diamine 42 5- (5-Chloro-2-isopropyl-4-methoxy-benzyl)-N* 2 * -ethyl-pyrimidine-2,4-diamine 43 5(2-Isopro p-4-methoxy-5-methyl-benzyl)-pyrimidine-2,4-diamine 44 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N*2*-pyrimidin-2-yl-pyrimidine-2,4 diamine 45 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N*2*-(2-methoxy-ethyl)-pyrimidine-2,4 diamine 46 N*4*-Benzyl-N*2*-isopropyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine 2,4-diamine 47 1-(4-{2-[4-Amino-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidin-2-ylamino] propyl}-piperazin-1-yl)-ethanone 48 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N*4*-(tetrahydro-pyran-4-yl)-pyrimidine 2,4-diamine 49 N*4*-Cyclopropyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine 50 5-(5-Ethoxy-2-isopropyl-4-methoxy-benzyl)-pyrimidine-2,4-diamine 51 N*2*-(2,4-Dimethoxy-phenyl)-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine- -34 2,4-diamine 52 N*2*-Cydobutyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine 53 5-(4,5-Dimethoxy-2-methyl-benzyl)-pyrimidine- 2

,

4 -diamine 54 N*2*-(2-Chloro-phenyl)-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4 diamine 55 5-(4-Chloro-2-isopropyl-5-methoxy-benzyl)-pyrimidine-2,4-diamine 56 5-(5-Bromo-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine 57 5-(Chloro-2-isopropyl-4-methoxy-benzyl)-N*2*-(3-methoxy-phenyl) pyrimidine-2,4-diamine 58 5-(5-Chloro-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine 59 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N*2*,N*4*-diphenyl-pyrimidine-2,4 diamine 60 5-(6-Isopropyl-1,3-dimethyl-1H-indol-5-yloxy)-pyrimidine-2,4-diamine 61 5-(5-Chloro-2-isopropyl-4-methoxy-benzyl)-N*2*-isobutyl-pyrimidine-2,4-diamine 62 5-(6-Isopropyl-1-methyl-1H-indol-5-yloxy)-pyrimidine-2,4-diamine 63 5-(5-Chloro-2-isopropyl-4-methoxy-benzyl)-N*2*-phenyl-pyrimidine-2,4-diamine 64 5-(2-Isopropyl-4-methoxy-5-methyl-phenoxy)-pyrimidine-2,4-diamine 65 5-(2-1sopropyl-4,5-dimethoxy-benzyl)-N*2*-methyl-pyrimidine-2,4-diamine 66 5-(2-Isopropyl-5-methyl-phenoxy)-pyrimidine-2,4-diamine 67 5-(5-Chloro-2-isopropyl-4-methoxy-benzyl)-N*2*-methyl-pyrimidine-2,4-diamine 68 N*2*-Benzyl-5-(5-chloro-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4 diamine 69 2-[2-Isopropylamino-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidin-4-ylamino] ethanol 70 5~(5-Chloro-2-isopropyl-4-methoxy-phenoxy)-N*2*-(tetrahydro-pyran-4-yl) pyrimidine-2,4-diamine 71 N*2*-(4-Chloro-phenyl)-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4 diamine 72 5-(2-Isopropyl-phenoxy)-pyrimidine-2,4-diamine 73 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N*4*-methyl-pyrimidine-2,4-diamine 74 5-(-horo-2-isopropyl-4-methoxy-phenoxy)-N*2*-isopropyl-pyrimidine-2,4 diamine 75 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N*4*-(2-methoxy-ethyl)-pyrimidine-2,4 diamine 76 N*2*-Isopropyl-5-(2-isopropyl-4,5-dimethoxy-phenoxy)-pyrimidine-2,4-diamine - 35 77 5- (2 -Ethyl-4,5-dimethoxy-benzyl)-pyrimidine-2, 4 -diamine 78 5-(2-Isopropyl-4,5-dlimethoxy-phenoxy)-N*2*-phenyl-pyrimidine-2,4-diamine 79 N*2*-tert-Butyl-5-(5-chloro-2-isopropyl-4-methoxy-benly)-pyrimidine-2,4 diamine 80 *2*-Benzyl-5-(2-isopropyl-4,5-dimethoxy-phenoxy)-pyrimidine-2,4-diamine 81 5(2-Cyclopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine 82 N-[4-Amino-5-(2-isopropyl-4,5-dimethoxy-phenoxy)-pyrimidin-2-yl]-acetamide 83 N* 2 *-Benzyl-5-(5-chloro-2-isopropyl-4-methoxy-benzyl)-pyrimidine-2,4-diamine 84 5-(2-Isopropyl-4,5-dimetboxy-phenoxy)-N*2*-(2,2,2-trifluoro-ethyl)-pyrimidine 2,4-diamine 85 5-(2-Isopropyl-4,5-dimethoxy-phenoxy)-N*2*-(2-methoxy-ethyl)-pyrimidine-2,4 diamine 86 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-pyrimidin-4-ylamine 87 3-[4-Amino-5-(5-chloro-2-isopropyl-4-methoxy-phenoxy)-pyrimidin-2-ylamino] pentane- 1,5-diol 88 5-(5-Chloro-2-isopropyl-4-methoxy-benzyl)-N*2*-cyclohexyl-pyrimidine-2,4 diamine 89 2- [ 4 -Amino-5-(5-chloro-2-isopropyl-4-methoxy-phenoxy)-pyrimidin-2-ylamino butan-1-ol 90 5-(2-Cyclobutyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine 91 1-[5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-ethanone 92 (2,4-Diamino-pyrimidin-5-yl)-(2-isopropyl-4,5-dimethoxy-phenyl)-methanone 93 5-[5-(1H-Imidazol-2-yl)-2-isopropyl-4-methoxy-phenoxy]-pyrimidine-2,4-diamine 94 (2,4-Diamino-pyrimidin-5-yl)- (2-isopropyl-4,5-dimethoxy-phenyl)-methanol 95 5-(2-Bromo-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine 96 5-[5-Chloro-2-(2-fluoro-1-methyl-ethyl)-4-methoxy-phenoxy]-pyrimidine-2,4 diamine 97 (5-Chloro-2-isopropyl-4-methoxy-phenyl)-(2,4-diamino-pyrimidin-5-yl)-methanol 98 2-[4-Amino-5-(5-chloro-2-ethyl-4-methoxy-phenoxy)-pyrimidin-2-ylamino] butan- 1 -ol 99 5-(5-Chloro-2-isopropy1-4-methoxy-phenoxy) -N*2*-(3-ethanesulfonyl- I -methyl propyl)-pyrimidine-2,4-diamine 100 5-(5-Bromo-2-ethyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine 101 5-(5-Chloro-2-ethyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine 102 5-(5-Chloro-2-cyclopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine - 36 10 (- 5Fluoro-2-isopropy1-4-methoxy-belI)-pyrimidine-2,4-diamine 104 5-(2Eh 5mf~-eufnl4mtox-hnx)prmdn-,-imn 105 5- ( 2 -AIyI-4,5 dimethoxy-befzly)-pyrimidie2,4-diamifle 106 5- ( 2

,

4 -Diamino-pyrimidifl5-yloxy)4isopropy-2methoxy-benzamide 107 5-(45Dm viy-hnx)prmdn-,-imn 108 5- ( 2

,

4 -Diamino-pyrimidif-5-yIoxy)4isopropyl2methoxy-benzoic acid 109 5-2Ccorp-,-iehx-hnx)prmdn-,-imn 110 5-[2-Isopropy-4-methoxy-5- ( H-tetrazol-5-yl) -phenoxy] -pyrimidine-2,4-diamifle III S-( 2 ,4-Diamino-.pyrimidil-.5-.y1oxy)-4isopropy2methoxy-benzonitrile 112 4- [ 4 -.Amino-5-.(5-chloro-2-isopropy4methoxy-phenoxy)-pyrimidin-2-ylamiioI piperidine- 1 -carboxylic acid ethyl ester 113 [5-(2,4-.Diamino-pyruiiW5-yloxy)-4isopropyl2-methoxy-phenyl] -urea 114 5-( 5-Chloro-.2-isopropyI-.4-methoxy-pbefloxy)N* 2 *-( I-cyclopropyl-ethyl) pyrimidine-2,4-diamine F11 5 5-(5-Chloro-.4-difluoromethoxy2-isopropypheloxy)>pyrimidine 2 4diamine 117 N*4*-.Isopropyl-5 ( 2-isopropyl-4,5-dimethoxy-befzly)N*2*methyl-pyrimidiie 2,4-diarnine 11I8 N- [5-C 2,4-Diamino-pyrmidin-5-yloxiy)-4-isopropyh2-metho'xy-phenlI -acetamide 119 5-(2-Isopropyl-4-methox-y-5-tetrazoI I -yl-phenoxy)-pyrimidine-2,4-diamfifle 120 5-.(2-Isopropy1-4-methoxyphefloxy)-p)rimidie2,4-diamine 121 5- ( 2 -Isopropy-5-methanesulfofyl4-methoxphenoxy)pynmidine 2

,

4 diamine 123 5-(2-spoy -ehx-5mty-hnx)N4-pey-yiiie24 diamine 124 5- (5Clr- -iorpl4mtoypeoy -*2-(1, 1 -dioxo-hexahydro 1lambda*6*-thiopyran-4-y1)-.pyrimidie2,4-dia.fline 125Methyl-carbamic acid 2- [4-amino-5-( 5-chloro-2-isopropyl-4-methox-y-pheloxy) pyrirnidin-2-ylamino] -propyl ester 126 5- (4-.Choro-2-isopropy5methy1Tphenoxy) -pyrimidine-2,4-diamine 127 5 -(2 -Isopropyl-4,5 dimethoxyphelox-y) 6methyl1pyrimidne 2

,

4 dia mine 1f28 5- [4,5-Dmtoy2 (1-ehl2peyty)benzyl] -pyrimidine-2,4-diamine 129 1- (4-12- [4-Aniino-5- (5-chloro-2-isopropy1-4-methoxy-pheloxy) -pyrimidin-2ylamino] -propyll -piperazin- 1-yl)-ethanone 130 15-( 5-Chloro-2-isopropyl-.4-methoxy-pheflox-y)N* 2 * (1 -methanesulfonyl-piperidin

-

-37 4-yl)-pyrimidine-2,4-diamine 131 2- [4-Amino-5- (5-chloro-2-isopropyl-4-methoxy-phenoxy)-pyrimidin-2-ylamino] (R)-propan-1-ol 132 5-(2-Ethyl-4,5-dimethoxy-phenoxy)-pyrimidine-2,4-diamine 133 5-(2-Isopropyl-5-methanesulfonyl-4-methoxy-phenoxy)-N-(tetrahydro-thiopyran 4-yl)-pyrimidine-2,4-diamine 134 5-(5-Chloro-2-isopropyl-4-methoxy-phenoxy)-N 2 -(1,1-dioxo-hexahydro- 1 6 thiopyran-4-yl)-pyrimidine-2,4-diamine 135 5- [5-(4,5-Dihydro- 1H-imidazol-2-yl)-2-isopropyl-4-methoxy-phenoxy] pyrimidine-2,4-diamine 136 1- [5-(2,4-Diamino-pyrimidin-5-yloxy)-2-hydroxy-4-isopropyl-phenyl] -ethanone 137 5-(5-Iodo-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine 138 5-(2-Iodo-4,5-dimethoxy-phenoxy)-pyrimidine-2,4-diamine 139 5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-benzenesulfonamide 140 4-(2,4-Diamino-pyrimidin-5-yloxy)-2-iodo-5-isopropyl-phenol 141 5-(2,5-Diiodo-4-methoxy-phenoxy)-pyrimidine-2,4-diamine 142 3-[4-Amino-5-(5-bromo-2-isopropyl-4-methoxy-phenoxy)-pyrimidin-2-ylaminol pentane-1,5-diol 143 5-(2-Ethyl-5-iodo-4-methoxy-phenoxy)-pyrimidine-2,4-diamine 144 5-(5-Iodo-2-isopropyl-4-methoxy-phenoxy)-1-oxy-pyrimidine-2,4-diamine 145 5-(2-Isopropyl-4methoxy-5-vinyl-phenoxy)-pyrimidine-2,4-diamine 146 5-(5-Iodo-2-isopropenyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine 147 5-(2-Isopropyl-4-methoxy-5-pyrazol-1-yl-phenoxy)-pyrimidine-2,4-diamine 148 5-(5-lodo-2-isopropyl-phenoxy) -pyrimidine-2,4-diamine 149 5-[2-Isopropyl-4-methoxy-5-(3-methyl-pyrazol-1-yl)-phenoxy]-pyrimidine-2,4 diamine 150 4-(2,4-Diamino-pyrimidin-5-ylmethyl)-2-iodo-5-isopropyl-phenol 151 5-(2-Isopropyl-4-methoxy-5-oxazol-2-yl-phenoxy)-pyrimidine-2,4-diamine 152 (S)-2- [4-Amino-5-(5-bromo-2-isopropyl-4-methoxy-phenoxy)-pyrimidin-2 ylamino]-butan-1-ol 153 5-(4-Iodo-2-isopropyl-5-methoxy-phenoxy)-pyrimidine-2,4-diamine 154 5-(4-Bromo-2-isopropyl-5-methoxy-phenoxy)-pyrimidine-2,4-diamine 15 5-(2-Ethyl-5-iodo-phenoxy)-pyrimidine-2,4-diamine 156 5-(2-Isopropyl-4-methoxy-5-trifluoromethyl-phenoxy)-pyrimidine-2,4-diamine 157 5- (2-Isopropyl-4-methoxy-5-thiazol-4-yl-phenoxy)-pyrimidine-2,4-diamine - 38 158 [4--( 2,4-Diamino-pyrimidif--l5YoXy)2iodo5-is opropyl-phenoxy] -acetonitrile 162 (S)-2- [4-Amino-5-(5clr--spopl4mtoypenx)prmdn2 ylaminolI -propionic acid 163 5-(45Dhdooxzl2y)2ispoy -etoypeo -pyrimidine-2,4 diamine 164 5- (8-Bromo-5-ethyl-2,3-dihydro-belzo [1,4] dioxin-6-yloxy)-pyrimidine-2,4 diamine 165 5-2ld-,-iehx-hnx)prmdn-,-imn 166 5- ( 2 -IsoproPY15methafslSfofyl4-methophenoxy)-N2(2,2,2trifluoro-ethyl> pyrimidine-2,4-diamine 167 5-(5-oo2iorpl4-ehx-ezl-yrmdn-,-imn 168 5-5Boo2ccorpl4mtoy-hnx)prmdn-,-imn 169 -(S)-2- [4-Amino-5- (5-chloro-2-isopropy-4-mfethoxy-phefloxy)pyrmidin- 2 ylamino] -propionic acid 3-hydroxy-2-hydroxymethyl-2-methylbPropyl ester 170 -5- [5-(5-hootlphn2y)2ispoy--etoypeoy-pyrimidine-2,4 diamine 171 '----ty--ehx--rfurmthlpeoy-yiiln-,-imn 172 5- [2-Isopropyl-4-methoxy-5I 1-methyl- 1H-imidazol-2-yl)-phenoxy] -pyrimidine 2,4-diamine 173 5-1 2-Isopr pyl4-methoxy-5-(2H-pyrazo1-3-y1pheloxyI-pyrimidine-2,4-diamine 174 5-(5-Imidazol-l 1 iorpl4-ehx-hnoy-yiiin-,-imn - 39 182 5- [5-Iodo-2-isopropyl-4-(pyrazin-2-ylmethoxy)-phenoxy] -pyrimidine-2,4-diamine 183 5-(2-Isopropyl-5-methanesulfonyl-4-methoxy-phenoxy)-N2-(2-methoxy-ethyl) pyrimidine-2,4-diamine 184 5-(2-Isopropyl-4-methoxy-5- [1,2,3] triazol-1-yl-phenoxy)-pyrimidine-2,4-diamine 185 5-(5-Furan-2-yl-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine 186 1- [5- (2,4-Diamino-pyrimidin-5-yloxy) -4-isopropyl-2-methoxy-phenyl] -3-ethyl urea 187 N2-Cyclopropyl-5-(2-isopropyl-5-methanesulfonyl-4-methoxy-phenoxy) pyrimidine-2,4-diamine 188 2- [4-(2,4-Diamino-pyrimidin-5-yloxy)-2-iodo-5-isopropyl-phenoxy]-acetamide 189 5- [5-(3,5-Dimethyl-pyrazol- 1-yl)-2-isopropyl-4-methoxy-phenoxy -pyrimidine-2,4 diamine 190 N2-Benzyl-5-(2-isopropyl-5-methanesulfonyl-4-methoxy-phenoxy)-pyrimidine-2,4 diamine 191 N2-Ethyl-5-(2-isopropyl-5-methanesulfonyl-4-methoxy-phenoxy)-pyrimidine-2,4 diamine 192 5-(2-Isopropyl-5-methanesulfonyl-4-methoxy-phenoxy)-N2-(1 -methanesulfonyl piperidin-4-yl)-pyrimidine-2,4-diamine 193 1- [4-Amino-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidin-2-ylamino] -2 methyl-propan-2-ol 194 N2-Isobutyl-5-(2-isopropyl-5-methanesulfonyl-4-methoxy-phenoxy)-pyrimidine 2,4-diamine 195 5-( 2

,

4 -Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-N-methyl-benzamide 196 5-(2,4-Diamino-pyrimidin-5-yloxy)-6-isopropyl- 1-methyl- 1H-indole-3-carboxylic acid ethyl ester 197 5-(2-Isopropyl-5-isoxazol-5-yl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine 198 5-(4-Ethyl-7-methyl-benzo[b) thiophen-5-yloxy)-pyrimidine-2,4-diamine 199 N2-(4-Fluoro-phenyl)-5-(2-isopropyl-5-methanesulfonyl-4-methoxy-phenoxy) pyrimidine-2,4-diamine 200 5-(5-Chloro-2-isopropyl-4-methoxy-benzyl)-N2-(2,2,2-trifluoro-ethyl)-pyrimidine 2,4-diamine 201 5-(2-Isopropyl-4-methoxy-5- [1,2,4]oxadiazol-3-yl-phenoxy)-pyrimidine-2,4 diamine 202 5-(2-Isopropyl-5-methanesulfonyl-4-methoxy-phenoxy)-N2-(tetrahydro-pyran-4 yl)-pyrimidine-2,4-diamine 203 1- [5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl] -ethanol -40 204 5-(6-Isopropyl-4-methyl-3,4-dihydro-2H-benzo 1,4]oxazin-7-yloxy)-pyrimidine 2,4-diamine 205 5-(2,5-Diisopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine 206 5-~( 5-Benzo[b]thiophen-3-yl-2-isopropyl-4-methoxy-phenoxy)-pyrimidine- 2

,

4 diamine 207 5- [2-Isopropyl-4-methoxy-5-(1-methoxy-ethyl)-phenoxy] -pyrimidine-2,4-diamine 208 5-(2-Isopropyl-4-methoxy-5-oxazol-4-yl-phenoxy)-pyrimidine-2,4-diamine 209 5-(4-Ethyl-7-methyl-benzo[b]thiophen-5-yloxy)-pyrimidine-2,4-diamine 210 5- [5-(5-Chloro-thiophen-2-yl)-2-isopropyl-4-methoxy-benzyl] -pyrimidine-2,4 diamine 211 5-(2-Isopropyl-4-methoxy-5-thiazol-2-yl-phenoxy)-pyrimidine-2,4-diamine 212 5-(2-Isopropyl-4-methoxy-5-thiophen-3-yl-benzyl)-pyrimidine-2,4-diamine 213 5-(5-Furan-3-yl-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine 214 5-(2-Isopropyl-5-methoxy-phenoxy)-pyrimidine-2,4-diamine 215 5-[5-Iodo-2-isopropyl-4-(pyrimidin-2-ylmethoxy)-phenoxy]-pyrimidine-2,4 diamine 216 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N2-pyridin-2-yl-pyrimidine-2,4-diamine 217 5-(1,3-Dimethyl-6-trifluoromethyl-1H-indol-5-yloxy)-pyrimidine-2,4-diamine 218 5-(2-Isopropyl-4-methoxy-5-thiophen-2-yl-phenoxy)-pyrimidine-2,4-diamine 219 1-[5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-3-phenyl urea 220 5-(5-Chloro-2-isopropyl-4-methoxy-benzyl)-'-(2-methoxy-ethyl)-pyrimidine-2,4 diamine 221 5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-N-methyl benzenesulfonamide 222 5-(2-Isopropyl-5-methanesulfonyl-4-methoxy-phenoxy)-N2-methyl-pyrimidine 2,4-diamine 223 5- [5-Iodo-2-isopropyl-4-(pyridin-2-ylmethoxy)-phenoxy] -pyrimidine-2,4-diamine 224 N- [2-Acetylamino-5-(2-isopropyl-4-methoxy-5-methyl-benzyl)-pyrimidin-4-yl] acetamide 225 5- [4-(2-Fluoro-benzyloxy)-5-iodo-2-isopropyl-phenoxy] -pyrimidine-2,4-diamine 226 5-(2-Isopropyl-4-methoxy-5-pyrrol- 1 -yl-phenoxy)-pyrimidine-2,4-diamine 227 5-(2-Isopropyl-4-methoxy-5-trifluoromethoxy-phenoxy)-pyrimidine-2,4-diamine 228 2- [4-(2,4-Diamino-pyrimidin-5-ylmethyl)-2-iodo-5-isopropyl-phenoxyI -ethanol 229 5-(6-Isopropyl-1-methyl-1H-indazol-5-yloxy)-pyrimidine-2,4-diamine - 41 230 5- [5-(4,5-Dihydro-oxazol-2-yl)-2-isopropyl-4-methoxy-benzyl] -pyrimidine-2,4 diamine 231 5'- (2,4-Diamino-pyrimidin-5-yloxy)-4' -isopropyl-2'-methoxy-biphenyl-3 carbonitrile 232 5- [2-Isopropyl-4-methoxy-5-(4-methyl-thiophen-2-yl)-phenoxy] -pyrimidine-2,4 diamine 233 5-(7,8-Diiodo-5-isopropyl-2,3-dihydro-benzo [1,4] dioxin-6-yloxy)-pyrimidine-2,4 diamine 234 5-(7-lodo-5-isopropyl-2,3-dihydro-benzo [1,4] dioxin-6-yloxy)-pyrimidine-2,4 diamine 235 5-(5-Chloro-2-isopropyl-4-methoxy-phenoxy)-N'- [ (S)- 1-(4-methyl-2,6,7-trioxa bicyclo[2.2.2] oct- 1-yly-ethyl] -pyrimidine-2,4-diamine 236 5-(5-Iodo-2-isopropyl-4-prop-2-ynyloxy-phenoxy)-pyrimidine-2,4-diamine 237 5-(2-Isopropyl-4-methoxy-5-nitro-phenoxy)-pyrimidine-2,4-diamine 238 5-(4-Ethoxy-5-iodo-2-isopropyl-phenoxy)-pyrimidine-2,4-diamine 239 5- [5-Iodo-2-isopropyl-4-(pyridin-3-ylmethoxy)-phenoxy] -pyrimidine-2,4-diamine 240 5-(4-Benzyloxy-5-iodo-2-isopropyl-phenoxy)-pyrimidine-2,4-diamine 241 5-(4-Isopropyl-6-methoxy-biphenyl-3-yloxy)-pyrimidine-2,4-diamine 242 5-(6-Isopropyl-2-methyl-2H-indazol-5-yloxy)-pyrimidine-2,4-diamine 243 5-(5-Furan-2-yl-2-isopropyl-4-methoxy-benzyl)-pyrimidine-2,4-diamine 244 5-(2-Isopropyl-4-methoxy-5-thiazol-5-yl-phenoxy)-pyrimidine-2,4-diamine 245 1-[5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-pyrrolidin 2-one 246 5-(2-Isopropyl-5-methanesulfonyl-4-methoxy-benzyl)-pyrimidine-2,4-diamine 247 5- [5-Chloro-2-(1-fluoro- 1-methyl-ethyl)-4-methoxy-phenoxy] -pyrimidine-2,4 diamine 248 5- [5-Ilodo-2-isopropyl-4-(2-methoxy-ethoxy)-phenoxy] -pyrimidine-2,4-diamine 249 5-(2-Isopropyl-4-methoxy-5-oxazol-5-yl-phenoxy)-pyrimidine-2,4-diamine 250 1- [4-Chloro-2-(2,4-diamino-pyrimidin-5-yloxy)-5-methoxy-phenyl] -ethanol 251 5-(2-Isopropyl-3-methoxy-phenoxy)-pyrimidine-2,4-diamine 252 2- [2- (2,4-Diamino-pyrimidin-5-yloxy)-4-iodo-5-methoxy-phenyl] -propan- 1 -ol 253 6- (2,4-Diamino-pyrimidin-5-yloxy)-5-isopropyl-3-methyl- 1H-indole-2-carboxylic acid 254 5- [5-Iodo-2-isopropyl-4-(2-methoxy-benzyloxy)-phenoxy] -pyrimidine-2,4-diamine 255 5-[5-Iodo-2-isopropyl-4-(2,2,2-trifluoro-ethoxy)-phenoxy]-pyrimidine-2,4-diamine - 42 2f56 5-5lodo-2-isopr-4(3,4,5-trimetho Yb-enzylo) y-phenoxyl-pyriniidine- 2,4 diamnineI 2f57 2Y- [2(2,4-DiaminoPYrliidin-5-ylo y-4iodo-5-methoxy-pheflyl] -propan-2-ol 2f58 -5- --- Isop--py--ehx--(-ehlti en3y)peo -pyrimidine-2,4 2-diamine 262 5-9 -sorOyl-4-methoxy-5- Li ,,triazheoly- yrimiphexy)yiamiife-2-~m 2635- 2~sop~py~45diethIphpenY)-- 2methox-ey)-p xyrimid~ne pyrimi- ld.n-2-iar l-4lfle th 2652,4-dian o-rmiin 267 5-[ [2oo2isopr l-4(etY(2ahyo-pya-15y1thoxy] hno-pyrimidine- 2diamine 269 5-(2-soEthneSpfyl-4mty-52iSprO2y4ethox1ylphenoxy)-pyrimidine 2

,

4 iamine 272 - 2-Isopropyl45methoxy-p( 1 M(2-methyl ~-aoy--yl)elX-pyrimidine24 diamine 273 - 45-FIoo--isoproPk(pyrdi-4hx-ylmehy)--eloxy) pyrimidine-2,4-diamile 278 5-11(2-uoro -b-etyoxy)--iom-e ioyl-phen y]i i piiine-2,4-diamine - 43 282 5-(2,4-Diamino-pyrimidin-5-yloxy)-6-isopropyl- 1 -methyl- 1H-indole-3-carboxylic acid 283 5- [4-(2,6-Difluoro-benzyloxy)-5-iodo-2-isopropyl-phenoxy] -pyrimidine-2,4 diamine 284 5-(5-Iodo-2-isopropyl-4-phenethyloxy-phenoxy)-pyrimidine-2,4-diamine 285 5~(2-Isopropyl-4-methoxy-5-pyridin-4-yl-phenoxy)-pyrimidine-2,4-diamine 286 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N -(1-methyl-piperidin-4-yl)-pyrimidine 2,4-diamine 287 5-(2,4-Diamino-pyrimidin-5-yloxy)-N-ethyl-4-isopropyl-2-methoxy benzenesulfonamide 8 5- [2-Isopropyl-5- (4-methanesulfonyl-piperazin- 1 -yl)-4-methoxy-phenoxyl pyrimidine-2,4-diamine 289 5-(2-Isopropyl-4-methoxy-5-pyridin-3-yl-phenoxy)-pyrimidine-2,4-diamine 290 5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-N,N-dimethyl benzamide 291 5-[5-(2,5-Dimethyl-pyrrol-1-yl)-2-isopropyl-4-methoxy-phenoxy]-pyrimidine-2,4 diamine 292 5-(2-Ethyl-3-methoxy-benzyl)-pyrimidine-2,4-diamine 293 5-(2-Bromo-4,5-dimethoxy-phenoxy)-pyrimidine-2,4-diamine 294 6-(2,4-Diamino-pyrimidin-5-yloxy)-5-isopropyl-3-methyl- 1H-indole-2-carboxylic acid ethyl ester Compounds of the present invention can be made by a variety of methods depicted in the illustrative synthetic reaction schemes shown and described below. The starting materials and reagents used in preparing these compounds generally are either 5 available from commercial suppliers, such as Aldrich Chemical Co., or are prepared by methods known to those skilled in the art following procedures set forth in references such as Fieser and Fieser's Reagents for Organic Synthesis; Wiley & Sons: New York, 1991, Volumes 1-15; Rodd's Chemistry of Carbon Compounds, Elsevier Science Publishers, 1989, Volumes 1-5 and Supplementals; and Organic Reactions, Wiley & Sons: New York, 1991, 10 Volumes 1-40. The following synthetic reaction schemes are merely illustrative of some methods by which the compounds of the present invention can be synthesized, and various modifications to these synthetic reaction schemes can be made and will be suggested to one skilled in the art having referred to the disclosure contained in this Application.

- 44 The starting materials and the intermediates of the synthetic reaction schemes can be isolated and purified if desired using conventional techniques, including but not limited to, filtration, distillation, crystallization, chromatography, and the like. Such materials can be characterized using conventional means, including physical constants and spectral data. 5 Unless specified to the contrary, the reactions described herein preferably are conducted under an inert atmosphere at atmospheric pressure at a reaction temperature range of from about -78"C to about 150*C, more preferably from about 0*C to about 125*C, and most preferably and conveniently at about room (or ambient) temperature (RT), e.g., about 20 0 C. 10 Scheme A below illustrates one synthetic procedure usable to prepare specific compounds of formula (I) wherein X is methylene, Y is -NRdRe, and R', R 2 , R1, R 4 , R 5 , R1, R 7 , R 8 , Rd, and Re are as defined herein. R Step OH Cl R C R2 CHO N. C1 Reduction R SMe R a R R SMe R NR Ra R NR* Step 5 R1 NRR Step 3 RRS R S NR RN R R R' g R HNRR ,17 R: 3R 3S5R! 7 R R m 5R R NR R6N-NR R" fRN~ M R _q R 5 R SCHEME A 15 In Step 1 of Scheme A, benzaldehyde a is alkylated with the Grignard reagent derived from 4-chloro-5-iodo-2-methylsulfanyl-pyrimidine b or like iodopyrimidine to provide an alpha-hydroxy benzyl pyrimidine c. The iodopyrimidine used in this step may be prepared according to the procedure described by Sakamoto et al., Chem. Pharm. Bull. 34:2719 (1986). Numerous substituted benzaldehydes a are commercially available or are readily 20 prepared by techniques well known to those skilled in the art. In many instances, a "masked aldehyde", such as an imine or oxazoline, may be used to allow introduction of desired functionalities to benzaldehyde a, after which the masked aldehyde is deprotected to provide the free aldehyde group. Aldehyde protection schemes of this sort are shown in the experimental examples below.

- 45 The reaction of step 1 may be carried out in the presence of an alkyl magnesium bromide under dry polar aprotic solvent conditions. In step 2, alpha-hydroxy benzy] pyrimidine c is reduced to provide benzyl pyrimidine d. The reduction of step 2 may be achieved using triethylsilane and trifluoroacetic acid (TFA) 5 under polar solvent conditions. In step 3, a first amination by reaction of amine e with benzyl pyrimidine d yields benzyl aminopyrimidine f. Amine e may comprise any suitable primary or secondary amine having functionalities R 7 or R 8 in accordance with the invention. Amine e may comprise, e.g., ammonia, methylamine, ethylamine, isopropylamine, aniline, benzylanine, phenyl 10 ethylamine, cyclopropylamine, dimethylamine, aziridine, pyrrolidine, piperidine, or the like. The amination of step 3 may be carried out by heating benzyl pyrimidine d in the presence of excess amine e under sealed conditions. In step 4, an oxidation of the methylsulfanyl group of benzyl aminopyrimidine f is carried out to afford amino methanesulfonyl benzylpyrimidine g. The oxidation of step 4 may be 15 carried out using metachloroperbenzoic acid (mCPBA), OXONE, or like oxidizing agent under mild, polar solvent conditions. A second amination occurs in step 6 in which amino methanesulfonyl benzylpyrimidine g is treated with amine h to displace the methanesulfonyl group and provide diamino benz ylpyrimidine i. The diamino benzylpyrimidine i is a compound of formula (I) and is 20 usable in the methods of the invention. The amination of step 6 maybe achieved by heating amino methanesulfonyl benzylpyrimidine g in the presence of excess amine h under mild pressure and polar solvent conditions. Numerous variations on the above procedure are possible and will suggest themselves to those skilled in the art upon review of this disclosure. For example, various pyrimidine 25 reagents may be used in place of iodopyrimidine b in step 1. In such variation, described in the experimental examples below, benzaldehyde a may be treated with 5-lithio-2,6 dimethoxypyrimidine [Mathson et al., JOC 55(10):3410-3412 (1990)] to form a dimethoxy benzyl pyrimidine alchohol which is subsequently oxidized with MnO 2 . The resultant ketone can then be aminated to displace the methoxy groups to yield a diamino benzyl 30 pyrimidine in accordance with the invention.

-46 Scheme B below illustrates another synthetic procedure usable to prepare specific com pounds of formula (I) above, wherein X is 0, Y is -NRdR', R 7 and R' are hydrogen, and R',

R

2 , R , R 4 , R 5 , Rd, and R' are as defined herein. R 2 OH Step 1 R O CN Step 2

ICH

2 CN O 3R 5 k R 3 R: NaH, R O R CH3l R R!R R Step 3 R NH 2 R0 CN lzz I NH 3 1 5 , d 3 4 R RX O e R8.N NH R 4 R N NR R n R RN R 5 SCHEME B In step 1 of Scheme B, an O-alkylation is carried out by reaction of phenol j with a halo acetonitrile such as iodoacetonitrile k, to afford cyano ether 1. Numerous substituted phenols j are either commercially available or may be prepared by techniques well known in the art for use in step 1. For example, the substituted benzaldehydes a of Scheme A 10 above may be converted to the corresponding phenols j via Baeyer-Villiger oxidation using peracid such as mCPBA, as illustrated in the experimental examples below. The alkylation of step 1 may be effected in the presence of mild base under polar aprotic solvent condi tions. In step 2, a cyano enol ether compound n is formed by treatment of cyano ether ! with a 15 strong base such as sodium hydride, followed by introduction of ester m to form an enol ate, that in turn is alkylated by addition of iodomethane or other alkyl halide. This step may be carried out under polar aprotic solvent conditions. In step 3 cyano enol ether n is reacted with guanidine compound o in the presence of base, under polar aprotic conditions, to yield diaminopyrimidine (VI). The diaminopyrimidine 20 (VI) is a compound of formula (I) usable in the methods of the invention. As in the case of Scheme A discussed above, numerous variations on the procedure of Scheme B are possible and will be readily apparent to those skilled in the art. For example, selective amination of the -NH 2 group of diamino pyrimidine p, using reductive amination -47 or like technique, may be used to introduce R 7 and R 8 functionalities in accordance with formula (1). Yet another procedure usable for preparation of the subject compounds is shown in Scheme C, wherein R 1 , R 2 , R 3 , R 4 and R' are as defined herein. Scheme C represents the 5 well-known synthesis of "ormetoprim" and "trimethoprim" antibacterials. This synthetic procedure is reported by Manchand et al., j. Org. Chem. 57:3531-3535 (1992). 1 R1NH 2 R2 R CHO Step1 O.,CH H2Step 2 R 2 NH2 Nz 0 'HN 7N3 CN H N

R

3 N R 5 CWR R >=NH R 3 N NH 2

R

4 MeONa R

H

2 N r SCHEME C In the procedure of Scheme C, benzaldehyde a is treated with acrylonitrile in the presence 10 of sodium methoxide in step 1 to afford a phenyl methoxymethyl cinnamonitrile com pound _q, which in turn is reacted with guanidine in step 2 to yield the diaminopyrimidine r. Diamino pyrimidine r is a compound of formula (I) in which X is -CH 2 -, Y is -NH 2 and

R

6 , R and R 8 are hydrogen. The procedure of Scheme C is effective for use with benzaldehydes a in which groups 15 and R 5 are small such that the aldehyde functionality in step 1, and methoxymethyl cinna monitrile functionality in step 2, are relatively unhindered. However, the introduction, e.g., of R' as an isopropyl or larger alkyl group, reduces the yield of step 1 nominally to zero. Table 2 below summarizes the relative yields provided by Scheme C for various benzaldehyde starting materials. 20 Table 2 R R2 R- R Yield % 1 H -H -OMe -OMe -H 67% 2 -OMe -H -OMe -OMe -H 37% 3 -CH 3 -H -OMe -OMe -H 34% 4 -Et -H -OMe -OMe -H 18% 5 -Isopropyl -H -OMe -OMe -H <1% - 48 Specific details for producing compounds of the invention are described in the Examples section below. The compounds of the invention are usable for the treatment of a wide range of genito urinary diseases, conditions and disorders, including urinary tract disease states associated 5 with bladder outlet obstruction and urinary incontinence conditions such as reduced bladder capacity, frequency of micturition, urge incontinence, stress incontinence, bladder hyperreactivity, benign prostatic hypertrophy (BPH), prostatitis, detrusor hyperreflexia, urinary frequency, nocturia, urinary urgency, overactive bladder, pelvic hypersensitivity, urethritis, prostatitits, pelvic pain syndrome, prostatodynia, cystitis, and idiophatic bladder 10 hypersensitivity, and other symptoms related to overactive bladder. The compounds of the invention are expected to find utility as analgesics in the treatment of diseases and conditions associated with pain from a wide variety of causes, including, but not limited to, inflammatory pain, surgical pain, visceral pain, dental pain, premen strual pain, central pain, pain due to burns, migraine or cluster headaches, nerve injury, 15 neuritis, neuralgias, poisoning, ischemic injury, interstitial cystitis, cancer pain, viral, para sitic or bacterial infection, post-traumatic injuries (including fractures and sports injuries), and pain associated with functional bowel disorders such as irritable bowel syndrome. The invention includes pharmaceutical compositions comprising at least one compound of the present invention, or an individual isomer, racemic or non-racemic mixture of isomers 20 or a pharmaceutically acceptable salt or solvate thereof, together with at least one pharma ceutically acceptable carrier, and optionally other therapeutic and/or prophylactic ingredi ents. In general, the compounds of the invention will be administered in a therapeutically effec tive amount by any of the accepted modes of administration for agents that serve similar 25 utilities. Suitable dosage ranges are typically 1-500 mg daily, preferably 1-100 mg daily, and most preferably 1-30 mg daily, depending upon numerous factors such as the severity of the disease to be treated, the age and relative health of the subject, the potency of the compound used, the route and form of administration, the indication towards which the administration is directed, and the preferences and experience of the medical practitioner 30 involved. One of ordinary skill in the art of treating such diseases will be able, without undue experimentation and in reliance upon personal knowledge and the disclosure of this Application, to ascertain a therapeutically effective amount of the compounds of the present invention for a given disease.

-49 Compounds of the invention may be administered as pharmaceutical formulations in cluding those suitable for oral (including buccal and sub-lingual), rectal, nasal, topical, pulmonary, vaginal, or parenteral (including intramuscular, intraarterial, intrathecal, sub cutaneous and intravenous) administration or in a form suitable for administration by in 5 halation or insufflation. The preferred manner of administration is generally oral using a convenient daily dosage regimen which can be adjusted according to the degree of afflic tion. A compound or compounds of the invention, together with one or more conventional ad juvants, carriers, or diluents, may be placed into the form of pharmaceutical compositions 10 and unit dosages. The pharmaceutical compositions and unit dosage forms may be com prised of conventional ingredients in conventional proportions, with or without additional active compounds or principles, and the unit dosage forms may contain any suitable effec tive amount of the active ingredient commensurate with the intended daily dosage range to be employed. The pharmaceutical compositions may be employed as solids, such as tablets 15 or filled capsules, semisolids, powders, sustained release formulations, or liquids such as solutions, suspensions, emulsions, elixirs, or filled capsules for oral use; or in the form of suppositories for rectal or vaginal administration; or in the form of sterile injectable solu tions for parenteral use. Formulations containing about one (1) milligram of active ingre dient or, more broadly, about 0.01 to about one hundred (100) milligrams, per tablet, are 20 accordingly suitable representative unit dosage forms. The compounds of the invention may be formulated in a wide variety of oral administra tion dosage forms. The pharmaceutical compositions and dosage forms may comprise a compound or compounds of the present invention or pharmaceutically acceptable salts thereof as the active component. The pharmaceutically acceptable carriers may be either 25 solid or liquid. Solid form preparations include powders, tablets, pills, capsules, cachets, suppositories, and dispersible granules. A solid carrier may be one or more substances which may also act as diluents, flavouring agents, solubilizers, lubricants, suspending agents, binders, preservatives, tablet disintegrating agents, or an encapsulating material. In powders, the carrier generally is a finely divided solid which is a mixture with the finely 30 divided active component. In tablets, the active component generally is mixed with the carrier having the necessary binding capacity in suitable proportions and compacted in the shape and size desired. The powders and tablets preferably contain from about one (1) to about seventy (70) percent of the active compound. Suitable carriers include but are not limited to magnesium carbonate, magnesium stearate, talc, sugar, lactose, pectin, dextrin, 35 starch, gelatine, tragacanth, methylcellulose, sodium carboxymethylcellulose, a low melting - 50 wax, cocoa butter, and the like. The term "preparation" is intended to include the formu lation of the active compound with encapsulating material as carrier, providing a capsule in which the active component, with or without carriers, is surrounded by a carrier, which is in association with it. Similarly, cachets and lozenges are included. Tablets, powders, 5 capsules, pills, cachets, and lozenges may be as solid forms suitable for oral administration. Other forms suitable for oral administration include liquid form preparations including emulsions, syrups, elixirs, aqueous solutions, aqueous suspensions, or solid form prepara tions which are intended to be converted shortly before use to liquid form preparations. Emulsions may be prepared in solutions, e.g., in aqueous propylene glycol solutions or may 10 contain emulsifying agents, e.g., such as lecithin, sorbitan monooleate, or acacia. Aqueous solutions can be prepared by dissolving the active component in water and adding suitable colorants, flavors, stabilizers, and thickening agents. Aqueous suspensions can be prepared by dispersing the finely divided active component in water with viscous material, such as natural or synthetic gums, resins, methylcellulose, sodium carboxymethylcellulose, and 15 other well known suspending agents. Solid form preparations include solutions, suspen sions, and emulsions, and may contain, in addition to the active component, colorants, flavors, stabilizers, buffers, artificial and natural sweeteners, dispersants, thickeners, solubi lizing agents, and the like. The compounds of the invention may be formulated for parenteral administration (e.g., by 20 injection, e.g. bolus injection or continuous infusion) and may be presented in unit dose form in ampoules, pre-filled syringes, small volume infusion or in multi-dose containers with an added preservative. The compositions may take such forms as suspensions, solu tions, or emulsions in oily or aqueous vehicles, e.g. solutions in aqueous polyethylene glycol. Examples of oily or nonaqueous carriers, diluents, solvents or vehicles include 25 propylene glycol, polyethylene glycol, vegetable oils (e.g., olive oil), and injectable organic esters (e.g., ethyl oleate), and may contain formulatory agents such as preserving, wetting, emulsifying or suspending, stabilizing and/or dispersing agents. Alternatively, the active ingredient may be in powder form, obtained by aseptic isolation of sterile solid or by lyo philization from solution for constitution before use with a suitable vehicle, e.g., sterile, 30 pyrogen-free water. The compounds of the invention may be formulated for topical administration to the epidermis as ointments, creams or lotions, or as a transdermal patch. Ointments and creams may, e.g., be formulated with an aqueous or oily base with the addition of suitable thickening and/or gelling agents. Lotions may be formulated with an aqueous or oily base 35 and will in general also containing one or more emulsifying agents, stabilizing agents, - 51 dispersing agents, suspending agents, thickening agents, or coloring agents. Formulations suitable for topical administration in the mouth include lozenges comprising active agents in a flavored base, usually sucrose and acacia or tragacanth; pastilles comprising the active ingredient in an inert base such as gelatine and glycerine or sucrose and acacia; and mouth 5 washes comprising the active ingredient in a suitable liquid carrier. The compounds of the invention may be formulated for administration as suppositories. A low melting wax, such as a mixture of fatty acid glycerides or cocoa butter is first melted and the active component is dispersed homogeneously, e.g., by stirring. The molten homogeneous mixture is then poured into convenient sized molds, allowed to cool, and to 10 solidify. The compounds of the invention may be formulated for vaginal administration. Pessaries, tampons, creams, gels, pastes, foams or sprays containing in addition to the active ingre dient such carriers as are known in the art to be appropriate. The subject compounds may be formulated for nasal administration. The solutions or sus 15 pensions are applied directly to the nasal cavity by conventional means, e.g., with a drop per, pipette or spray. The formulations may be provided in a single or multidose form. In the latter case of a dropper or pipette, this may be achieved by the patient administering an appropriate, predetermined volume of the solution or suspension. In the case of a spray, this may be achieved e.g. by means of a metering atomizing spray pump. 20 The compounds of the invention may be formulated for aerosol administration, particular ly to the respiratory tract and including intranasal administration. The compound will generally have a small particle size e.g. of the order of five (5) microns or less. Such a par ticle size may be obtained by means known in the art, e.g. by micronization. The active in gredient is provided in a pressurized pack with a suitable propellant such as a chlorofluoro 25 carbon (CFC), e.g., dichlorodifluoromethane, trichlorofluoromethane, or dichlorotetra fluoroethane, or carbon dioxide or other suitable gas. The aerosol may conveniently also contain a surfactant such as lecithin. The dose of drug may be controlled by a metered valve. Alternatively the active ingredients may be provided in a form of a dry powder, e.g. a powder mix of the compound in a suitable powder base such as lactose, starch, starch 30 derivatives such as hydroxypropylmethyl cellulose and polyvinylpyrrolidine (PVP). The powder carrier will form a gel in the nasal cavity. The powder composition may be pre sented in unit dose form e.g. in capsules or cartridges of e.g., gelatine or blister packs from which the powder may be administered by means of an inhaler.

- 52 When desired, formulations can be prepared with enteric coatings adapted for sustained or controlled release administration of the active ingredient. For example, the compounds of the present invention can be formulated in transdermal or subcutaneous drug delivery de vices. These delivery systems are advantageous when sustained release of the compound is 5 necessary and when patient compliance with a treatment regimen is crucial. Compounds in transdermal delivery systems are frequently attached to an skin-adhesive solid support. The compound of interest can also be combined with a penetration enhancer, e.g., Azone (1-dodecylazacycloheptan-2-one). Sustained release delivery systems are inserted sub cutaneously into the subdermal layer by surgery or injection. The subdermal implants 10 encapsulate the compound in a lipid soluble membrane, e.g., silicone rubber, or a bio degradable polymer, e.g., polylactic acid. The pharmaceutical preparations are preferably in unit dosage forms. In such form, the preparation is subdivided into unit doses containing appropriate quantities of the active component. The unit dosage form can be a packaged preparation, the package containing 15 discrete quantities of preparation, such as packeted tablets, capsules, and powders in vials or ampoules. Also, the unit dosage form can be a capsule, tablet, cachet, or lozenge itself, or it can be the appropriate number of any of these in packaged form. Other suitable pharmaceutical carriers and their formulations are described in Remington: The Science and Practice ofPharmacy 1995, edited by Martin, Mack Publishing Company, 20 19th edition, Easton, Pennsylvania. Representative pharmaceutical formulations contain ing a compound of the present invention are described below. EXAMPLES The following preparations and examples are given to enable those skilled in the art to more clearly understand and to practice the present invention. They should not be con 25 sidered as limiting the scope of the invention, but merely as being illustrative and repre sentative thereof. Preparation 1: N-(2-(R)-Hydroxy-1-methyl-ethyl)-guanidine Step 1: Bis-benzyloxycarbonyl- N-(2-(R)-Hydroxy-1-methyl-ethyl)-guanidine N cbz CH Ncbz HO' NH2 + N Ncbz HO N Ncbz CaN H H

C

3 \N H H - 53 To a solution of R-(-)-2-amino-1-propanol (0.59 g, 8.0 mmol) in 50 mL THF was added pyrrazole carboxamidine (3.0 g, 8.0 mmol, prepared as described by Berbatowicz et al., Tetrahedron 34:3389 (1993). After 16 hours the mixture was concentrated in vacuo. Puri fication via flash chromatography (93:7 ethyl acetate/CH2Cl2) afforded bis-benzyloxycarb 5 onyl- N-(2-(R)-hydroxy-1-methyl-ethyl)-guanidine (3.0 g, 97%) as a white solid. Step 2: N-(2-(R)-Hydroxy-1-methyl-ethyl)-guanidine CH N-cbz CHa NH HO N cbz 3 H N NH 2 H H H To a solution of bis-benzyloxycarbonyl-N-(2-(R)-hydroxy-l-methyl-ethyl)-guanidine in 75 mL EtOH was added 10% Pd/C (0.10 g). The mixture was stirred under 1 Atmosphere 10 of H 2 . After 16 hours the mixture was filtered through a pad of celite and concentrated in vacuo to give N-(2-(R)-hydroxy-1-methyl-ethyl)-guanidine (0.44 g, 69%). Using the appropriate amines with the above procedure, the following guanidine com pounds were also prepared: N-(3-Ethanesulfonyl-1-methyl-propyl)-guanidine; 15 4-Guanidino-piperidine-1-carboxylic acid ethyl ester; N-(1-Cyclopropyl-ethyl)-guanidine; N-(Tetrahydro-thiopyran-4-yl)-guanidine; N-[2-(4-Acetyl-piperazin- 1-yl)-1-methyl-ethyl] -guanidine; N-(1-Hydroxymethyl-propyl)-guanidine 20 N-(1-Methanesulfonyl-piperidin-4-yl)-guanidine; and N-[3-Hydroxy-1-(2-hydroxy-ethyl)-propyl]-guanidine. Example 1: 5-[4,5-Dimethoxy-2-(1-methyl-2-phenyl-ethyl)-benzyl]-pyrimidine-2,4 diamine The synthetic procedure used in this Example is outlined in Scheme D. OMe N Step 1 Step2 O MeO Mg. 0 CHI 0 OMe Me MeO 2BrOMe OMe 25 -54 Step 3 Step 4 Step 5 CHO 1. NaOH N CO 2 Me DIBA OH Pcc 2. MeOH/TMSDM MeO MeO MeO O) OMe OMe We Step 6 OH Oe Step 7 0 O e 1. nBuLi MnO 2 "N 2. Dimethoxy- N N pyrimidne MeO N OMe MeO N OMe OMe OMe Step 8 0 NH 2 Step 9

NH

2 NH N iAIH 4 7 NH !: j MeO N NH 2 MeO N NH 2 OMe OMe Scheme D 5 Step 1. 2-[4,5-Dimethoxy-2-(1-methyl-2-phenyl-ethyl)-phenyl]-4,4-dimethyl-4,5-di hydro-oxazole The 4

,

4 -dimethyl-2-(2,4,5-trimethoxy-phenyl)-4,5-dihydro-oxazole used in this step was prepared according to the procedure reported by Meyers et al., J Org Chem 43:1372-1379 (1978). To a rapidly stirring suspension of magnesium turnings (1.32 g, 54.5 mol) and in 10 35 mL tetrahydrofuran (THF) was added 1,2-dibromoethane (0.10 mL) in one portion. 2 bromo-1-phenylpropane (10.86 g, 54.5 mmol) was added at a rate that maintained the internal temperature at 40*C. After 2.5 hours the cloudy suspension was transferred via canula to a solution of 4,4-dimethyl-2-(2,4,5-trimethoxy-phenyl)-4,5-dihydro-oxazole (10.013 g, 36.4 mmol) in 50 mL THF. After 18 hours the solution cooled to 0*C and 15 quenched by the slow addition of 10% NH 4 Cl. 500 mL H 2 0 was added and the mixture was extracted with ethyl acetate, washed with H 2 0, and washed with brine. The combined organics were dried over Na 2

SO

4 , filtered and concentrated in vacuo to give a crude solid. Purifications via flash chromatography (4:1 hexane/ethyl acetate) afforded 2-[4,5-dimeth- - 55 oxy-2-(1-methyl-2-phenyl-ethyl)-phenyl]-4,4-dimethyl-4,5-dihydro-oxazole as a clear viscous oil (7.833 g, 41%). Step 2. 2-[4,5-Dimethoxy-2-(1-methyl-2-phenyl-ethyl)-phenyl]-3,4,4-trimethyl-4,5-di hydro-oxazolium iodide 5 To a solution of 2-[4,5-dimethoxy-2-(1-metbyl-2-phenyl-ethyl)-phenyl)-4,4-dimethyl-4,5 dihydro-oxazole (7.515 g, 21.3 mmol) in 50 mL NO 2

CH

3 was added iodomethane (2.65 mL, 42.5 mmol). The solution was warmed to 110*C. After 3 hours the solution was cooled and concentrated in vacuo to give 2-[4,5-dimethoxy-2-(1-methyl-2-phenyl-ethyl) phenyl]-3,4,4-trimethyl-4,5-dihydro-oxazolium iodide (10.108 g) as an orange solid. 10 Step 3. 4,5-Dimethoxy-2-(1-methyl-2-phenyl-ethyl)-benzoic acid methyl ester To a solution of 2-[4,5-dimethoxy-2-(1-methyl-2-phenyl-ethyl)-phenyl]-3,4,4-trimethyl 4,5-dihydro-oxazolium iodide (5.132 g, 10.4 mmol) in 52 mL methanol was added 4 M NaOH (5.2 mL, 20.7 mmol). The solution was warmed to reflux. After 16 hours the solution was cooled to 0*C and acidified to pH = 1 with concentrated HCL. The mixture 15 was extracted with ethyl acetate, washed with H 2 0 and washed with brine. The combined organics were dried over Na 2

SO

4 , filtered and concentrated in vacuo to give a crude acid (3.228 g). A portion of this acid (2.919 g, 9.73 mmol) was dissolved in a mixture of 70 mL benzene and 20 mL MeOH. Trimethylsilyldiazomethane (6.3 mL, 2.0 M in hexanes) was added drop-wise. After 30 minutes the solution was concentrated in vacuo to give 4,5-di 20 methoxy-2-(1-methyl-2-phenyl-ethyl)-benzoic acid methyl ester as an oil (2.886 g). Step 4. [4,5-Dimethoxy-2-(1 -methyl-2-phenyl-ethyl) -phenyll -methanol Diisobutyl aluminum hydride (22.9 mL, 1.0 M in THF) was added to a solution of 4,5-di methoxy-2-(1-methyl-2-phenyl-ethyl)-benzoic acid methyl ester (2.886 g, 9.2 mmol) in 100 mL THF at -78*C over 10 min. The mixture was allowed to stir for 1 h and warmed to 25 RT. After 1.5 hours the mixture was quenched by the slow addition of 50 mL saturated Rochelle's salt. After rapidly stirring for 30 minutes the mixture was filtered through a pad of celite and concentrated in vacuo. H 2 0 was added and the slurry was extracted with ethyl acetate, washed with H 2 0 and washed with brine. The combined organics were dried over Na 2

SO

4 , filtered and concentrated in vacuo to give a crude oil. Purification via flash chro 30 matography (3:1 hexane/ethyl acetate) afforded [4,5-dimethoxy-2-(1-methyl-2-phenyl ethyl)-phenyl]-methanol as a clear oil (1.269 g, 48%). Step 5. 4,5-Dimethoxy-2-(1-methyl-2-phenyl-ethyl)-benzaldehyde A solution of pyridinium chlorochromate (1.253 g, 5.8 mmol) in 40 mL CH 2

C

2 was cooled to 0*C. [4,5-Dimethoxy-2-(1-methyl-2-phenyl-ethyl)-phenyl] -methanol (1.110 g, 3.88 - 56 mmol) in 5.0 mL CH 2 Cl 2 was added drop-wise and allowed to stir for 45 minutes. The mixture was diluted in 200 mL Et 2 0, filtered through celite and concentrated in vacuo to afford a dark brown oil. Purification via flash chromatography (9:1 hexane/ethyl acetate) gave 4,5-dimethoxy-2-( 1-methyl-2-phenyl-ethyl)-benzaldehyde (0.840 g, 76%) as a clear 5 oil. Step 6. [4,5-Dimethoxy-2-(1-methyl-2-phenyl-ethyl)-phenyl]-(2,4-dimethoxy-pyrimidin 5-yl)-methanol Freshly distilled 2,2,6,6-tetramethyl piperidine (0.85 mL, 5.0 mmol) was dissolved in 20 mL THF and cooled to 0*C. n-Butyllithium (2.0 mL, 2.5 M in hexanes) was added drop-wise 10 over 5 minutes and the mixture was allowed to stir for 30 minutes and then cooled to -78 0 C. 2,4-Dimethoxypyrimidine (0.353 g, 2.52 mmol) was added drop-wise over 5 min. After 45 min the solution was transferred via a dry ice cooled cannula to a solution of 4,5 dimethoxy-2-(1-methyl-2-phenyl-ethyl)-benzaldehyde (0.717 g, 2.52 mmol) in 20 mL THF at -78"C. After stirring for 1 hour the solution was warmed to RT and quenched by 15 the slow addition of 50 mL 10% NH 4 Cl. After 100 mL of H 2 0 was added the mixture was extracted with ethyl acetate, washed with H 2 0 and washed with brine. The combined organics were dried over Na 2

SO

4 , filtered and concentrated in vacuo to give an orange oil. Purification via flash chromatography (3:2 hexane/ethyl acetate) afforded [4,5-dimethoxy 2-(1-methyl-2-phenyl-ethyl)-phenyll-(2,4-dimethoxy-pyrimidin-5-yl)-methanol (0.551 g, 20 52%) as a clear oil. Step 7. [4,5-Dimethoxy-2-(1-methyl-2-phenyl-ethyl)-phenyll-(2,4-dimethoxy-pyrimidin 5-yl)-methanone To a solution of [4,5-dimethoxy-2-(1-methyl-2-phenyl-ethyl)-phenyl]-(2,4-dimethoxy pyrimidin-5-yl)-methanol (0.418 g, 0.9 mmol) in 20 mL toluene was added MnO 2 (0.335 g, 25 4.7 mmol). The mixture was warmed to reflux and H 2 0 was removed via a Dean-Stark trap. After 1 hour the mixture was cooled, filtered through a pad of celite and concentra ted in vacuo to give a crude oil. Purification via flash chromatography (7:3 hexane/ethyl acetate) afforded [4,5-dimethoxy-2-(1-methyl-2-phenyl-ethyl)-phenyll-(2,4-dimethoxy pyrimidin-5-yl)-methanone (0.258 g, 62%) as a clear oil. 30 Step 8. (2,4-Diamino-pyrimidin-5-yl)-[4,5-dimethoxy-2-(1-methyl-2-phenyl-ethyl) phenyl]-methanone A solution of [4,5-dimethoxy-2-(1-methyl-2-phenyl-ethyl)-phenyl]-(2,4-dimethoxy-pyri midin-5-yl)-methanone (0.212 g, 0.5 mmol) in 5.0 mL MeOH was added to ammonia (15 mL, 7.OM in MeOH) in a sealed tube. The mixture was heated to 80*C. After 16 hours the 35 solution was cooled and concentrated in vacuo to give a dark solid. Purification via flash - 57 chromatography (95:5 CH 2 Cl 2 /MeOH) afforded (2,4-diamino-pyrimidin-5-yl)-[4,5-di methoxy-2-(1-methyl-2-phenyl-ethyl)-phenyl]-methanone (0.162 g, 86%) as a white solid. Step 9. 5-[4,5-Dimethoxy-2-(1-methyl-2-phenyl-ethyl)-benzyl]-pyrimidine-2,4-diamine To a solution of (2,4-diamino-pyrimidin-5-yl)-14,5-dimethoxy-2-(1-methyl-2-phenyl 5 ethyl)-phenyl]-methanone (0.413 g, 0.4 mmol) in 10 mL THF was added LiAlH 4 (0.73 mL, 1.0 M in THF) over 5 min. After gas evolution ceased the mixture was warmed to reflux. After 3 h the mixture was cooled to 0*C and quenched by the Fieser method. After 30 min the mixture was filtered through a pad of celite and concentrated in vacuo to give a crude white solid. To a solution of this solid in 5 mL CH 2

CI

2 was added TFA (1.1 mL, 14.0 10 mmol) followed by triethylsilane (0.4 mL, 2.8 mmol). After 30 min 50 mL 10% K 2

CO

3 was added and the mixture was extracted with ethyl acetate and washed with brine. The com bined organics were dried over Na 2

SO

4 , filtered and concentrated in vacuo. Purification via flash chromatography (95:5 CH 2

C

2 ) afforded 5-[4,5-dimethoxy-2-(1-methyl-2-phenyl ethyl)-benzyl]-pyrimidine-2,4-diamine (0.066 g, 58%) as a white foam; melting point (HCI 15 salt) 227.1-227-4 0 C. Using the procedure of Example 1 described above, but replacing 2-bromo-1-phenyl propane in step 1 with 2-bromopropane or other alkyl bromides, and replacing ammonia in step 8 with various alkyl or benzyl amines, afforded a variety of compounds under essential the same reaction conditions. Additional compounds prepared using the 20 procedure outlined in Example 1 are shown in Table 1. Example 2: 5-(5-Bromo-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine The synthetic procedure used in this Example is outlined in Scheme E. Step I ~ + Br Step 2 +Br Br1 HO HO CHI MeO MeO HO Br Br Step 3 Br Step 4 OH Br Ticy/CCHOMe I + mCPBA MeO / MeO Me B MeO Br

CHO

- 58 Step S OH -e 0 CN Step 6

K

2 COs/ICHCN MeO MeO 1. NaH 2. Ethyl Formate Br Br 3. CH 3 l N O CN Step7 0 1 ~.1. NaOMe MeO OMe 2. Guaniine MeO N NH 2 Carbonate Br Br Scheme E Step 1. 2-Bromo-5-isopropyl-phenol 5 A solution of 3-isopropyl phenol (4.975 g, 36.5 mmol) in 37 mL of CCl4 was cooled to -20*C. Bromine (1.9 mL, 38.4 mmol) was dissolved in 5.0 mL CCl 4 and added drop-wise at such a rate that the internal temperature was maintained below -10*C. The mixture was allowed to warm to RT. After 12 hours the mixture was taken up in 100 mL CH 2

CI

2 , washed with H 2 0 and then with brine. The combined organics were dried over Na 2

SO

4 , 10 filtered and concentrated in vacuo to give 8.663 g of a 1:1 mixture of 2-bromo-5-isopropyl phenol and 4-bromo-5-isopropyl phenol as a dark oil. These two isomers were inseparable and were used together in step 2 below. Step 2. 1-Bromo-4-isopropyl-2-methoxy-benzene To a mixture of 2-bromo-5-isopropyl-phenol and 4-bromo-5-isopropyl phenol from step 15 1 (8.663 g, 40.3 mmol), K 2

CO

3 (16.710 g, 120.9 mmol) in 50 mL DMF, was added iodo methane (3.0 mL, 48.3 mmol) with mechanical stirring. The mixture was warmed to 50 0 C for 4 hours. After cooling to RT 300 mL H 2 0 was added and the solution was extracted with diethyl ether (Et 2 O), washed with H 2 0 and washed with brine. The combined organics were dried over MgSO 4 , filtered and concentrated in vacuo to give 1-bromo-4 20 isopropyl-2-methoxy-benzene and 1-bromo-2-isopropyl-4-methoxy-benzene (6.621 g, 72%) as a 1:1 inseparable mixture in the form of a pale yellow oil. This mixture of regioisomers was used directly in step 3 below. Step 3. 5-Bromo-2-isopropyl-4-methoxy-benzaldehyde To a solution of 1-bromo-4-isopropyl-2-methoxy-benzene and 1-bromo-2-isopropyl-4 25 methoxy-benzene from step 2 (6.621 g, 28.9 mmol) in 100 mL 1,2 dichloroethane was added TiCl 4 (6.3 mL, 57.8 mmol) at 0*C. After 10 minutes, dichloromethoxymethane (Cl 2 CHOMe) (2.6 mL, 28.9 mmol) was added and the mixture was warmed to reflux.

- 59 After 3 hours the mixture was cooled poured over ice and acidified with 50 mL 2 M HCl. The resulting slurry was extracted with CH 2 Cl 2 , and washed with brine. The combined organics were dried over MgSO 4 , filtered and concentrated in vacuo to give a dark-green oil. Purification via flash chromatography (96:4 hexane/ethyl acetate) afforded 5-bromo 5 2 -isopropyl-4-methoCy-benzaldehyde and 5-bromo-4-isopropyl-2-methoxy-benzadehyde (2.876 g, 39%, 6.621 g, 72%) as a 1:1 mixture of inseparable isomers in the form of an orange oil, which was used directly in step 4. Step 4. 5-Bromo-2-isopropyl-4-methoxy-phenol To a solution of 5-bromo-2-isopropyl-4-methoxy-benzaldehyde and 5-bromo-4-isoprop 10 yl-2-methoxy-benzaldehyde from step 3 (2.87 g, 11.2 mmol) in 25 mL CH 2

CI

2 was added mCPBA (2.31 g, 13.4 mmol). After 16 hours the mixture was taken up in 150 ml CH 2 C12 and washed with sat NaHCO 3 , and then with brine. The combined organic layers were dried over Na 2

SO

4 , filtered and concentrated in vacuo to give an oil that was taken up in 50 mL MeOH and 30 mL 4M NaOH. After 2 hours the mixture was evaporated, diluted with 15 water and acidified to pH = 1 with concentrated HCl. The mixture was extracted with ethyl acetate (3X 100 mL) and washed with 100 mL brine. The combined organics were dried over Na 2

SO

4 , filtered and evaporated to give a mixture of 5-bromo-2-isopropyl- 4 methoxy-phenol and 2-bromo-5-isopropyl-4-methoxy-phenol as an orange residue. These regioisomers were separable by flash chromatography (gradient: hexane, 7:3, 1:1 hexane/ 20 CH 2 Cl2) to afford 5-bromo-2-isopropyl-4-methoxy-phenol (0.929, 34%) as a yellow oil which was used in the following step, and 2-bromo-5-isopropyl-4-methoxy-pheno (0.404 g, 15%) as a yellow solid. Step 5. (5-Bromo-2-isopropyl-4-methoxy-phenoxy)-acetonitrile To a mixture of 5-bromo-2-isopropyl-4-methoxy-phenol from step 4 (0.831 g, 3.4 mmol) 25 and K 2

CO

3 (0.562 g, 4.1 mmol) in 17 mL dimethyl formamide (DMF) was added iodo acetonitrile (0.594 g, 3.6 mmol). The mixture was warmed to 60*C for 30 minutes and then allowed to cool to RT. After cooling to RT the mixture was taken up in 50 mL of H 2 0 and extracted with 1:1 toluene/ethyl acetate, washed with H 2 0 and then with brine. The combined organic layers were dried over Na 2

SO

4 , filtered and conectrated in vacuo to give 30 a crude solid. Purification via flash chromatography (1:1 hexane/CH 2 C2) afforded (5 bromo-2-isopropyl-4-methoxy-phenoxy)-acetonitrile (0.611 g, 63%) as a while solid. Step 6. 2-(5-Bromo-2-isopropyl-4-methoxy-phenoxy)-3-methoxy-acrylonitrile Sodium hydride (0.122 g, 5.0 mmol, 60% w/w) was washed with dry hexanes and evapo rated under a stream of nitrogen. 10 mL THF was added and the mixture was cooled to 35 0"C. (5-Bromo-2-isopropyl-4-methoxy-phenoxy)-acetonitrile (0.577 g, 2.03 mmol) was -60 added in portions. After 30 min ethyl formate (4.9 mL, 60.9 mmol) was added and the solution was warmed to 80*C. After 4.5 hours the mixture was cooled and 5.0 mL iodo methane was added in one portion. After 16 hours the solution was quenched with H 2 0, concentrated in vacuo, extracted with ethyl acetate, washed with H 2 0 and then washed 5 with brine. The combined organic layers were dried over Na 2 SO4, filtered and concentra ted in vacuo. Purification via flash chromatography (9:1 hexane/ethyl acetate) afforded 2 (5-bromo-2-isopropyl-4-methoxy-phenoxy)-3-methoxy-acrylonitrile (0.319 g, 48%) as a white solid. Step 7. 5-(5-Bromo-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine 10 To a solution of 2-(5-bromo-2-isopropyl-4-methoxy-phenoxy)-3-methoxy-acr-ylonitrie (0.282 g, 0.9 mmol) and guanidine carbonate (0.078 g, 0.4 mmol) in 10.0 mL dimethyl sulfoxide (DMSO) was added sodium methoxide (1.0 mL, 1.OM in MeOH). The mixture was warmed to 120*C. The methanol was collected via a short-path condenser. After 3 h the mixture was cooled and concentrated in vacuo to give a crude oil. Purification via flash 15 chromatography (95:5 CH 2 Cl 2 /MeOH) afforded 17 (0.246 g, 77%) as a pink solid; Mass Spec M+H = 352. The above procedure may be used with various different phenols in step 1 and/or substitu ted guanidines in step 7 under essentially the same reaction conditions to produce addi tional compounds. Additional compounds made according to the procedure of Example 2 20 are shown in Table 1. Example 3: N*4*-Ethyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine The synthetic procedure used in this Example is outlined in Scheme F. OMe OMe CHO Stepi 1. Step 2 Step 3 31 - N' 30 1 N' --- MeO C H MeO N Y MeO O e N HCI OMe HN OMe U ~ Step 4 OH CI step 5 CI CHo N TES/TFA N MeON MeO N SMe MeO N SMe OMe N SMe OMe - 61 HN-I HN stp HN_ Step 6 Step 7 Step 8t pN N OXONEm N NH40H H2N MeO N SMe MeO N A.SO 2 Me Meo OMe N NH 2 OMe OMe Scheme F Step 1. (1-Isopropyl-2-methyl-propyl)-(2,4,5-trimethoxy-benzylidene)-amine To a solution of 2,4,5-trimethoxybenzaldehyde (20.10 g, 102.4 mmol) in 200 mL of toluene 5 was added 2,4-dimethylpentyl-3-amine and p-toluene sulfonic acid (0.1 g). The mixture was warmed to reflux. The generated H 2 0 was removed with a Dean-Stark trap. After 3 h, the solution was cooled, washed with 50 mL saturated NaHCO 3 , dried over Na 2

SO

4 and filtered. The solution was concentrated in vacuo to give a yellow syrup. Purification via Kagel-Rhor distillation (80*C, 200 mTorr) gave (1-isopropyl-2-methyl-propyl)-(2,4,5-tri 10 methoxy-benzylidene)-amine (28.70 g, 96% ) as a pale yellow solid. Step 2. (2-Isopropyl-4,5-dimethoxy-benzylidene)-(1-isopropyl-2-methyl-propyl)-amine To a solution of (1-isopropyl-2-methyl-propyl)-(2,4,5-trimethoxy-benzylidene)-amine (1.024 g, 3.5 mmol) in 35 ml THF at -78"C was added isopropyllithium (6.0 mL, 0.7 M in pentane) drop-wise over 5 minutes. The solution was allowed to stir 30 min at -78"C. 15 After warming to RT over 45 minutes the mixture was quenched by the addition of 5 mL of 10% NH 4 Cl and concentrated in vacuo. 100 mL of H 2 0 was added and the mixture was extracted with ethyl acetate, washed with H 2 0 and then brine. The combined organic layers were dried over Na 2

SO

4 , filtered and concentrated in vacuo to give (2-isopropyl- 4 ,5 dimethoxy-benzylidene)-(1-isopropyl-2-methyl-propyl)-amine as a yellow oil. 20 Step 3. 2-Isopropyl-4,5-dimethoxy-benzaldehyde (2-Isopropyl-4,5-dimethoxy-benzylidene)-(1-isopropyl-2-methyl-propyl)-amine was dis solved in 30 ml of THF. HCI (4.1 mL, 4 M) was added and the mixture was warmed to reflux. After 3 hours the mixture was cooled concentrated in vacuo. 100 mL of H 2 0 was added and the mixture was extracted with ethyl acetate, washed with H 2 0 and then with 25 brine. The combined organic layers were dried over Na 2 SO4, filtered and concentrated in vacuo to give an orange oil. Purification via flash chromatography (85:15 hexane/ethyl acetate) gave 2-isopropyl-4,5-dimethoxy-benzaldehyde (0.331g, 43%) as a clear oil Step 4. (4-Chloro-2-methylsulfanyl-pyrimidin-5-yl)-(2-isopropyl-4,5-dimethoxy-phenyl) methanol 30 The 4-chloro-5-iodo-2-methylsulfanyl-pyrimidine used in this step was prepared according to the procedure described by Sakamoto et al., Chem. Pharm. Bull. 34:2719 - 62 (1986). To a solution of 4-chloro-5-iodo-2-methylsulfanyl-pyrimidine (1.10 g, 3.9 mmol) in 20 mL THF at -40*C was added isopropyl magnesium bromide (2.3 mL, 2 M in THF) over 5 minutes. After 30 minutes, 2-isopropyl-4,5-dimethoxy-benzaldehyde from step 3 (1.04 g, 4.6 mmol) was added and the solution was warmed to RT. The mixture was 5 quenched by the addition of brine, and extracted with CH 2

CI

2 . The combined organic layers were dried over Na 2

SO

4 , filtered and concentrated in vacuo. Purification via flash chromatography (ethyl acetate) afforded (4-chloro-2-methylsulfanyl-pyrimidin-5-yl)-( 2 isopropyl-4,5-dimethoxy-phenyl)-methanol (1.168 g, 82%) as a light yellow solid. Step 5. 4-Chloro-5-(2-isopropyl-4,5-dimethoxy-benzyl)-2-methylsulfanyl-pyrimidine 10 To a solution of (4-chloro-2-methylsulfanyl-pyrimidin-5-yl)-(2-isopropyl-4,5-dimethoxy phenyl)-methanol (6.5 g, 17.6 mmol) in 200 mL CH 2

C

2 was added triethylsilane (28.0 mL, 176 mmol) and TFA (70 mL, 881 mmol). After 2 hours the solution was concentrated in vacuo, 10% K 2

CO

3 was added and extracted with CH 2 Cl 2 . The combined organic layers were washed with brine, dried over Na 2

SO

4 , filtered and concentrated in vacuo. Purifica 15 tion via flash chromatography (4:1 hexanes/ethyl acetate) afforded 4-chloro-5-(2-isoprop yl-4,5-dimethoxy-benzyl)-2-methylsulfanyl-pyrimidine (5.60 g, 91%) as a clear oil. Step 6. Ethyl- [5-(2-isopropyl-4,5-dimethoxy-benzyl)-2-methylsulfanyl-pyrimidin-4-yl] amine To a glass pressure vessel containing 4-chloro-5-(2-isopropyl-4,5-dimethoxy-benzyl)- 2 20 methylsulfanyl-pyrimidine (0.212 g, 0.6 mmol) was added 5.0 mL ethyl amine via a cold finger condenser. The vessel was capped and warmed to 50"C. After 16 hours the solution was cooled to RT, evaporated and taken up in H 2 0. The mixture was extracted with ethyl acetate, washed with H 2 0 and then washed with brine. The combined organic layers were dried over Na 2

SO

4 , filtered and evaporated in vacuo. Purification via flash chromatogra 25 phy (4:1 hexane/ethyl acetate) afforded ethyl-[5-(2-isopropyl-4,5-dimethoxy-benzyl)-2 methylsulfanyl-pyrimidin-4-yl]-amine (0.136 g, 63%) as a white solid. Step 7. Ethyl-{5-(2-isopropyl-4,5-dimethoxy-benzyl)-2-methanesulfonyl-pyrimidin-4-yl] amine To a solution of ethyl-[5-(2-isopropyl-4,5-dimethoxy-benzyl)-2-methylsulfanyl-pyrimi 30 din-4-yl]-amine (0.129 g, 0.4 mmol) in 20 mL 1:1 H 2 0/THF was added OXONE* (0.461 g, 0.8 mmol) in 4.0 mL H 2 0. After 2 hours, 50 mL H 2 0 was added and the mixture was ex tracted with ethyl acetate, washed with H 2 0 and washed with brine. The combined organic layers were dried over Na 2

SO

4 , filtered and concentrated in vacuo to give ethyl-[5-(2-iso propyl-4,5-dimethoxy-benzyl)-2-methanesulfonyl-pyrimidin-4-yl]-amine (0.131 g, 92%) 35 as a white foam.

- 63 Step 8. N*4*-Ethyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine To ethyl-[5-(2-isopropyl-4,5-dimethoxy-benzyl)-2-methaneslfonyl-pyrimidin-4-yl} amine (0.078g, 0.2 mmol) in microwave reactor vial was added 2.0 mL dimethoxy ethane and 0.5 mL concentrated NH 4 0H. The vial was capped and placed in a microwave reactor. 5 The internal temperature was warmed to 145"C. After 2 hours an additional portion of 0.4 mL concentrated NH 4 0H was added and the mixture was heated an additional 2 hours. The mixture was cooled and concentrated in vacuo. Purification via flash chromatography (96:4 CH 2

CI

2 /MeOH) afforded N*4*-ethyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimi dine-2,4-diamine (0.031 g, 47%) as a pale yellow solid; Mass Spec M+H = 329. 10 Use of different alkyllithium reagents in step 1 and/or different substituted amines in steps 6 and 8 of the above procedure afforded additional compounds under the same or very similar reaction conditions. Additional compounds made by the procedure of Example 3 are shown in Table 1. Example 4: 2-[4-Amino-5-(5-choro-2-isopropyl-4-methoxy-phenoxy)-pyrimidin-2-yl 15 amino]-(R)-propan-l-ol The synthetic procedure used in this Example is outlined in Scheme G. Step I C1 Step 2 HO HO HO CI-1 3 1 C1 C S Step CHO CI + TICyICcHoe I + MeO MeO MeO MeO CI CI CHO CHO Step 4 Step 5 OCN Step 6 mCPSA K C0 3 /ICH:CN I1. NaH 2. Ethyl Formate MeO MeO MeO 3. CH 3 1 CI CI CI

NH

2 OCN Step O CHI.NH N N O H MeO C OMe CH 3 NH MeO CN N 2 0. NH2 H 20o

HH

- 64 Scheme G Step 1. 2-Chloro-5-isopropyl-phenol A solution of 3-isopropyl phenol (10.0 g, 73.4 mmol) in 350 mL 9:1 benzene/CHC 3 was cooled to 0*C. Hypochlorous acid tert-butyl ester (8.77 g, 80.8 mmol) was added drop 5 wise over 5 min and the mixture was allowed to warm to RT. After 16 h the mixture was concentrated in vacuo to give a crude oil. Purification via flash chromatography afforded 2-chloro-5-isopropyl-phenol and 4-chloro-3-isopropyl-phenol (6.540 g, 52%) as a 7:3 inseparable mixture of isomers in the form of a pale yellow oil. The combined regioiso mers were used together in the following step. 10 Step 2. 1-Chloro-4-isopropyl-2-methoxy-benzene To a solution of 2-chloro-5-isopropyl-phenol and 4-chloro-3-isopropyl-phenol from step 1 (8.694 g, 47.1 mmol) in 50 mL DMF was added K 2

CO

3 . lodomethane (3.5 mL, 56.5 mmol) was added and the mixture was warmed to 50*C. After 4 hours H 2 0 was added. The mixture was extracted with ethyl acetate, washed with H 2 0, washed and washed with 15 brine. The combined organic layers were dried over Na 2

SO

4 , filtered and concentrated in vacuo to give 1-chloro-4-isopropyl-2-methoxy-benzene and 1-chloro-2-isopropyl-4-meth oxy-benzene (9.289 g) as a 7:3 inseparable mixture in the form of a pale yellow oil, which was used directly in the following step. Step 3. 5-Chloro-2-isopropyl-4-methoxy-benzaldehyde 20 Using the procedure of step 3 of Example 2, the combined 1-chloro-4-isopropyl-2-meth oxy-benzene and 1-chloro-2-isopropyl-4-methoxy-benzene (3.715 g, 20.1 mmol) were treated with TiCla followed by Cl 2 CHOMe to give a mixture of 5-chloro-2-isopropyl-4 methoxy-benzaldehyde and 5-chloro-4-isopropyl-2-methoxy-benzaldehyde as a yellow oil. These regioisomers were separable by flash chromatography (gradient: hexane, 7:3, 1:1 25 hexane/CH 2 C2) to afford 5-chloro-2-isopropyl-4-methoxy-benzadehyde (1.269 g, 30%) as a pale yellow solid. Step 4. 5-Chloro-2-isopropyl-4-methoxy-phenol Using the procedure of step 4 from Example 2 described above, 5-chloro-2-isopropyl-4 methoxy-benzaldehyde (3.203 g, 15.1 mmol) afforded 5-chloro-2-isopropyl-4-methoxy 30 phenol (1.768 g, 58%) as s clear oil. Step 5. (5-Chloro-2-isopropyl-4-methoxy-phenoxy)-acetonitrile To a solution of 5-chloro-2-isopropyl-4-methoxy-phenol (10.36 g, 51.6 mmol) in 40 mL DMF was added K 2

CO

3 (8.55 g, 62.0 mmol) and the mixture was heated to 65"C. After 15 - 65 minutes iodoacetonitrile (9.05 g, 54.2 mmol) was added and the mixture was heated to 80 0 C for 1 hour. The mixture was cooled, poured into an ice/H 2 0 mixture and extracted with 1:1 toluene/hexane. The combined organics were washed with brine, dried over Na 2

SO

4 , filtered and concentrated in vacuo. The crude product was purified by passing 5 through a short plug of silica to afford (5-chloro-2-isopropyl-4-methoxy-phenoxy)-aceto nitrile (11.97 g, 97%) as a white solid. Step 6. 2-(5-Choro-2-isopropyl-4-methoxy-phenoxy)-3-methoxy-acrylonitrile To a solution of (5-chloro-2-isopropyl-4-methoxy-phenoxy)-acetonitrile (1.44 g, 6.0 mmol) and ethyl formate (2.2 g, 29.2 mmol) in 7 mL 1,2-dimethoxy ethane at 5*C was 10 added 95% NaH (0.15 g, 6.0 mmol) in one portion. The mixture was warmed to RT. After 1 hour 95% NaH (0.15 g, 6.0 mmol) was added in one portion. After 1 hour 10 mL iodo methane was added and the mixture was allowed to stir for 16 hour. The mixture was con centrated in vacuo, IN HCI was added and the mixture was extracted with ethyl acetate. The combined organic layers were washed with brine, dried over Na 2

SO

4 , filtered and con 15 centrated in vacuo. Purification via flash chromatography (85:15 hexane/ethyl acetate) afforded 2-(5-chloro-2-isopropyl-4-methoxy-phenoxy)-3-methoxy-acrylonitrile (1.41 g, 84%) as a white solid. Step 7. 2-[4-Amino-5-(5-chloro-2-isopropyl-4-methoxy-phenoxy)-pyrimidin-2-ylamino) (R)-propan-1-ol 20 To a solution of 2-(5-choro-2-isopropyl-4-methoxy-phenoxy)-3-methoxy-acrylonitrile (0.20 g, 0.7 mmol) in 1 mL DMSO was added N-(2-(R)-hydroxy-1-methyl-ethyl)-guani dine from Preparation 1 (0.10 g, 0.8 mmol). The solution was warmed to 120*C. After 45 minutes the solution was cooled, taken up in H 2 0, and extracted with ethyl acetate. The combined organic layers were washed with H 2 0, dried over NaSO 4 , filtered and concentra 25 ted in vacuo. Purification via flash chromatography (95:5 CH 2 Cl 2 /MeOH) afforded 2-[4 Amino-5-(5-chloro-2-isopropyl-4-methoxy-phenoxy)-pyrimidin-2-ylamino]-(R)-propan 1-ol (0.128 g, 50 %) as a solid; Mass Spec M+H = 366. Example 5: 2-[4-Amino-5-(5-chloro-2-ethyl-4-methoxy-phenoxy)-pyrimidin-2 ylamino]-butan-1-ol

H

3 C

NH

2 O HCH, 0 N H 30 CH 3

C

- 66 To a solution of N-(2-(R)-hydroxy-1-methyl-ethyl)-guanidine from Preparation 1 (0.15 g, 1.1 mmol) in 1 mL of dry DMSO was added 2-(5-chloro-2-isopropyl-4-methoxy-phen oxy)-3-methoxy-acrylonitrile (0.23 g, 0.9 mmol) from step 6 of Example 4. The mixture was heated at 120"C for 3.0 hours. The reaction mixture was cooled and 20 mL of water 5 was added and was extracted with EtOAc (2 X 50 mL). The combined organic solution was then washed with water (3 X 50 mL), then with Brine. The solution was dried over MgSO 4 , filtered and concentrated. The compound was purified by column chromatography on Silica Gel using 2% MeOH/dichloromethane. The fractions containing the product were combined and evaporated under reduced pressure to give crude product. This product was 10 suspended in 2 mL of ether, and 0.6 mL of IM HClI/ether (1.5 eq.) was added. 30 minutes later, the solid was filtered and washed with ether to give 160 mg of 2-[4-Amino-5-(5 chloro-2-isopropyl-4-methoxy-phenoxy)-pyrimidin-2-ylaminol-(R)-propan-1-ol as a hydrochloride salt: Mass Spec M+H = 367; MP; 111.4-116.9*C. The above procedure was used with various different phenols and amino guanidines under 15 essentially the same reaction conditions to produce additional compounds, which are shown in Table 1. Example 6: N*2*-(1,1-Dioxo-hexahydro-11ambda*6*-thiopyran-4-yl)-5-(2-isopropyl 4,5-dimethoxy-phenoxy)-pyrimidine-2,4-diamine

H

3 C

CH

3

NH

2 N S0 0 80

H

3 CII 0 H HaC 20 5-(2-Isopropyl-4,5-dimethoxy-phenoxy)-N*2*-(tetrahydro-thiopyran-4-yl)-pyrimidine 2,4-diamine was prepared according to the procedure of Example 5, using 2-(2-isopropyl 4,5-dimethoxy-phenoxy)-3-methoxy-acrylonitrile (prepared usingthe procedure of Example 4) together with N-(tetrahydro-thiopyran-4-yl)-guanidine from Preparation 1. To a mixture of 5-(2-isopropyl-4,5-dimethoxy-phenoxy)-N*2*-(tetrahydro-thiopyran-4 25 yl)-pyrimidine-2,4-diamine (0.19 g, 0.46 mmol) in 25 mL of methanol and 25 mL of water was added the OXONE (1.73 g, 1.4 mmol). This mixture was stirred at RT overnight. The reaction mixture was diluted with water (50 mL) and extracted with EtOAc (3 X 50 mL). The organic solution was washed with Brine, dried over MgSO 4 . The solution was filtered and concentrated. The residue was purified on one preparative TLC plate (20 x 40 cm) - 67 eluting with EtOAc. Product recovered was stirred with 1.5 eq of IM HCI/ether to afford 25 mg of N*2*-(1,1-dioxo-hexahydro-ilambda*6*-thiopyran-4-yl)-5-(2-isopropyl-4,5-di methoxy-phenoxy)-pyrimidine-2,4-diamine HCl salt): MS (M+H); 441: MP: 255.1 257.80C. 5 Example 7: Methyl-carbamic acid 2-{4-amino-5-(5-chloro-2-isopropyl-4-methoxy phenoxy)-pyrimidin-2-ylaminol-propyl ester H3C

CH

3 NH 2 0 O y NCH 3 00 I H

CH

3 CI 1,1-Carbonyldiimidazole (0.97 g, 6 mmol) was added to a solution of 2-[4-Amino-5-(5 chloro-2-isopropyl-4-methoxy-penoxy)-pyrimidin-2-ylamino]-(R)-propan-1-ol from 10 Example 4 (0.22 g, 0.6 mmol) in 20 mL of THF at RT. The mixture was stirred for 2 hours and methylamine (3 mL, 2M/THF, 0.6 mmol) was added. The reaction mixture was stirred overnight and concentrated under reduced pressure, diluted with water (75 mL), and ex tracted with EtOAc (2 X 75 mL). The organic phase was washed with Brine and dried with MgSO4. The solution was filtered and concentrated. The residue was purified on two Silica 15 preparative TLC plates (20 X 40 cm) eluting with 5% MeOH/dichloromethane affording 143 mg of methyl-carbamic acid 2-[4-amino-5-(5-chloro-2-isopropyl-4-methoxy-phen oxy)-pyrimidin-2-ylaminol-propyl ester: MS (M+H); 424: MP: 63.5 - 69.4*C. Example 8: 5-(4,5-Dimethoxy-2-methyl-benzyl)-pyrimidine-2,4-diamine The synthetic procedure used in this Example is outlined in Scheme H.

CH

3 CHO CH 3

CH

3

NH

2 Step I W 10IH 3 Step 2 IN H-CN O OC H2St=NH C0 N NH 2 H O'CH 3 MeONa

CH

3 O'CH3

H

2 N

CH

3 OCH 203 Scheme H This Example follows the procedure described by Manchand et al., J. Org. Chem. 57:353 1 3535 (1992). Briefly, in step 1 4,5-dimethoxy-2-methyl-benzaldehyde and sodium meth oxide were dissolved in cold methanol and stirred under nitrogen at RT for 18 hours. The - 68 mixture was cooled to -15 0 C, and crude 3-(4,5-dimethoxy-2-methyl-phenyl)-2-methoxy methyl-acrylonitrile was collected as filtrate. In step 2, 3-(4,5-dimethoxy-2-methyl-phenyl)-2-methoxymethyl-acrylonitrile and sodium methoxide were dissolved in dry DMSO and stirred for 3.5 hours at 85*C under nitrogen. 5 Guanidine carbonate was then added to the stirring solution, after which the temperature was raised to 125"C for three hours, during which methanol removed via a Dean-Stark trap. The solution was cooled to RT, diluted with water, and the crude filtrate was re crystallized in DMF to yield 5-(4,5-dimethoxy-2-methyl-benzyl)-pyrimidine-2,4-diamine as a white solid. Mp: 232"C. Mass Spec (M+H): 275. 10 Additional compounds made by the procedure of Example 8 are shown in Table 1. Example 9: 5-(6-Isopropyl-1,3-dimethyl-1H-indol-5-yloxy)-pyrimidine-2,4-diamine The synthetic procedure used in this Example is outlined in Scheme I. Step I Step 2 0 - 30 0 MeMgBr / Mel | NaH / Mel HN O Step 3 OH Step 4 0 _CN H2/Pd/C -N K2CO,/ -- N --- ICH 2 CN N

NH

2 Step 5 0 CN Step 6 0 1. NaOMe 1. NaH -N OMe 2. Guanidine -N N NH 2 2. Ethyl Formate - Carbonate 3. CH 3 l 15 SCHEME I The 5-benzyloxy-6-isopropyl-1H-indole utilized in step 1 of this Example was prepared from 1-{2-[(5-benzyloxy)-4-(1-methylethyl)-2-nitrophenyl]ethenyll-pyrrolidine according - 69 to the procedure reported by Leonardi et al., Eur. J. Med. Chem. 29:551-559 (1994). The methylation of step 3 below also follows the procedure described by Leonardi et al. Step 1. 5-Benzyloxy-6-isopropyl-3-methyl-1H-indole The methylation carried out in this step follows the procedure for indole alkylation re 5 ported by Marino et al. J. Am. Chem. Soc. 114:5566-5572 (1992). 5-Benzyloxy-6-isoprop yl-1H-indole (0.855 g, 3.22 mmol) was dissolved in 20 mL of dry THF, and the resulting solution was cooled in an ice bath. Ethyl magnesium bromide (4.9 ml, 4.9 mmol in ether) was added dropwise to the solution, and the solution was then stirred for 4 hours at RT. Methyl iodide (1.42 g, 10 mmol) was then added, and stirring was continued for an addi 10 tional 18 hours at RT. The reaction mixture was poured into ice water and extracted with ethyl acetate. The combined organic layers were washed with saturated ammonium chloride, dried (MgSO 4 ), and concentrated in vacuo. The resulting residue was purified with flash chromatography (ethyl acetate/hexanes = 1/9) to yield 325 mg of 5-benzyloxy-6 isopropyl-3-methyl-1H-indole Mass Spec (M+H): 280. 15 Step 2. 5-Benzyloxy-6-isopropyl-1,3-dimethyl-1H-indole 5-Benzyloxy-6-isopropyl-3-methyl-1H-indole (0.320 g, 1.15 mmol), KOH (0.264 g, 4.7 mmol), benzyl tributylammonium chloride (0.071g, 0.230 mmol), and methyl iodide (0.107 mL, 1.72 mmol) were added to 3 mL of toluene. The resulting mixture was stirred for 4 hours at 90*C, cooled to RT, poured into water, and extracted with ethyl acetate 2 20 times. The combined organic layers were washed with water, dried (MgSO4) and evapora ted in vacuo to provide a crude oil that was was purified with flash chromatography (ethyl acetate/hexanes = 1/9); yield 270 mg of 5-benzyloxy-6-isopropyl-1,3-dimethyl-1H-indole. Step 3. 6-Isopropyl-1,3-dimethyl-1H-indol-5-ol 5-Benzyloxy-6-isopropyl-1,3-dimethyl-1H-indole (0.270 g, 1.30 mmol) and Pd/C 10% 25 (0.150 g) were added to 10 mL of methanol, and the mixture was hydrogenated in a Parr apparatus for 1.5 hours at 55 psi, at RT. The catalyst was removed by filtration and the solvent was removed in vacuo. The residue was purified with flash chromatography (5% ethyl acetate in hexanes) to yield 210 mg of 6-isopropyl-1,3-dimethyl-1H-indol-5-ol. Step 4. (6-Isopropyl-1,3-dimethyl-1H-indol-5-yloxy)-acetonitrile 30 (6-Isopropyl-1,3-dimethyl-1H-indol-5-yloxy)-acetonitrile was prepared from 6-isopropyl 1,3-dimethyl-1H-indol-5-ol by treatment with iodoacetonitrile using the procedure of step 5 of Example 2 above. Step 5. 2-(6-Isopropyl-1,3-dimethyl-1H-indol-5-yloxy)-4-methoxy-but-2-enenitrile -70 2-(6-Isopropyl-1,3-dimethyl-1H-indol-5-yloxy)-4-methoxy-but-2-enenitrile was prepared from (6-isopropyl-1,3-dimethyl-lH-indol-5-yloxy)-acetonitrile by treatment with sodium hydride and methyl iodide using the procedure of step 6 of Example 2 above. Step 6. 5-(6-Isopropyl-1,3-dimethyl-1H-indol-5-yloxy)-pyrimidine-2,4-diamine 5 5-(6-Isopropyl-1,3-dimethyl-1H-indol-5-yloxy)-pyrimidine-2,4-diamine was prepared from 2-(6-isopropyl-1,3-dimethyl-1H-indol-5-yloxy)-4-methoxy-but-2-enenitrile by treatment with guanidine carbonate and sodium methoxide using the procedure of step 7 of Example 2 above. This material was dissolved in 2.5 ml absolute ethanol, and 820 ml of I N HCI in diethyl ether was added with stirring. Diethyl ether was added slowly until small 10 crystals formed, and the solution was then placed in a -10*C freezer for 18 hours. The solid that had formed was collected by filtration, washed with diethyl ether, and dried under vacuum at 45*C. to give 171 mg. of the hydrochloride salt, Mp: 185.1*C. 5-(6-Isopropyl- 1-methyl- 1H-indol-5-yloxy)-pyrimidine-2,4-diamine was also prepared using the above procedure, but omitting the 3-methylation of step 1. MS (M+H): 298. 15 Example 10: 5-(2-Isopropyl-4-methoxy-5-methyl-phenoxy)-N*4*-phenyl-pyrimidine 2,4-diamine The synthetic procedure used in this Example is outlined in Scheme J. Step 1 0 Step 2 O H O O O - O O Br 0 CH 3 1 0 0 O3 Step 4 O Guanidine carbonate N NH 2 POCla 0 0o Step 5 C_ N oN NH H 2 N O NNH 2 20 - 71 Scheme J Step 1. ( 2 -Isopropyl-4-methoxy-5-methyl-phenoxy)-acetic acid ethyl ester To a solution of 2-isopropyl-4-methoxy-5-methyl-phenol (3.933 g, 21.8 mmol) in acetone (100 ml) was added potassium carbonate (20 g, 145 mmol) and ethyl bromoacetate (5ml, 5 45.1 mmol). The mixture was refluxed over night and was filtered through celite. The filtrate was concentrated under reduced pressure and the residue was partitioned between ethyl acetate and water. The organic phase was washed with brine and dried over an hydrous sodium sulfate. After removal of drying agent, the organic solution was concen trated under reduced pressure. The residue was purified with silica gel chromatography 10 (10% to 15% methylene chloride in hexane) to yield (2-isopropyl-4-methoxy-5-methyl phenoxy)-acetic acid ethyl ester as white solid (4.78 g, 82%). Step 2. 2

-(

2 -Isopropyl-4-methoxy-5-methyl-phenoxy)-3-methoxy-acrylic acid ethyl ester To a solution of (2-isopropyl-4-methoxy-5-methyl-phenoxy)-acetic acid ethyl ester (4.42 g, 16.6 mmol) in anhydrous 1,2-dimethoxy ethane (60 ml) was added sodium hydride ( 15 60% in mineral oil, 3.5 g, 87.5 nmol) at RT. After 5 minutes of stirring, ethyl formate (40 ml, 495 mmol) was added. The mixture was heated at 85*C for 7 hours. After cooling to RT, iodomethane was added and stirring was continued overnight. Solvent was concen trated under reduced pressure and the residue was partitioned between ethyl acetate and water. The organic phase was washed with brine and dried over anhydrous sodium sulfate. 20 After removal of drying agent, the organic solution was concentrated under reduced pressure. The residue was purified with silica gel chromatography (10% to 30% ethyl acetate in hexane) to yield 2-( 2 -isopropyl-4-methoxy-5-methyl-phenoxy)-3-methoxy acrylic acid ethyl ester as a pale yellow oil (1.19 g, 23%). Step 3. 2-Amino-5-(2-isopropyl-4-methoxy-5-methyl-phenoxy)-3H-pyrimidin-4-one 25 To a solution of NaOMe [prepared from sodium (0.05 g, 2.17 mmol) in anhydrous methanol (5 ml)] was added guanidine carbonate. After 5 minutes, a solution of 2-(2 isopropyl-4-methoxy-5-methyl-phenoxy)-3-methoxy-acrylic acid ethyl ester (0.22 g, 0.713 mmol) in anhydrous DMSO (10 ml) was added. The mixture was heated at 120*C for 3 hours and was cooled and partitioned between ethyl acetate and water. The organic phase 30 was washed with brine and dried over anhydrous sodium sulfate. After removal of drying agent, the organic solution was concentrated under reduced pressure. The residue was purified with silica gel chromatography (5% methanol in methylene chloride/0.1% con centrated NH 4 0H) to yield 2-amino-5-(2-isopropyl-4-methoxy-5-methyl-phenoxy)- 3

H

pyrimidin-4-one as pale yellow solid (0.045 g, 22%). MS M+H=290.

- 72 Step 4. 4 -Chloro-5-(2-isopropyl-4-methoxy-5-methyl-phenoxy)-pyrimidin-2-ylamine A mixture of 2-amino-5-(2-isopropyl-4-methoxy-5-methyl-phenoxy)-3H-pyrimidin-4 one in phosphorus oxychloride (5 ml) was heated at 110*C for 40 minutes and stirred at RT over night. Solvent was removed under reduced pressure and ice water was added. The 5 aqueous solution was basified with potassium carbonate to pH 9, and extracted with methylene chloride. The organic phase was washed with brine and dried over anhydrous sodium sulfate. After removal of drying agent, the organic solution was concentrated under reduced pressure to yield 4-chloro-5-(2-isopropyl-4-methoxy-5-methyl-phenoxy) pyrimidin-2-ylamine as yellow solid (0.043 g, 88%). MS M+H = 308. 10 Step 5. 5-(2-Isopropyl-4-methoxy-5-methyl-phenoxy)-N*4*-phenyl-pyrimidine-2, 4 diamine A suspension of 4-chloro-5-(2-isopropyl-4-methoxy-5-methyl-phenoxy)-pyrimidin-2-yl amine (0.043 g, 0.14 mmole) in aniline (4 ml) was placed in a sealed tube and heated at 100*C over night. Methylene chloride was added and insoluble solid was removed by filtra 15 tion through celite. The combined methylene chloride filtrate was washed with water and dried over anhydrous sodium sulfate. After removal of the drying agent, the organic phase was concentrated under reduced pressure. The residue was purified with silica gel chroma tography (2% methanol in methylene chloride) to yield a yellow oily residue, which was further purified with preparative TLC and HPLC (5 to 100%acetonitrile in water with 20 0.1% TFA to yield 5-(2-Isopropyl-4-methoxy-5-methyl-phenoxy)-N*4*-phenyl-pyrimi dine-2,4-diamine, M+H: 365. Example 11: 5-(2-Cyclopropyl-4,5-dimethoxy-phenoxy)-pyrimidine-2,4-diamine Step 1. 4-Cyclopropyl-1,2-dimethoxy-benzene 0 H Cp 2 ZrCi 2 /THF TiC 4

/CH

2

C

2 0 CH 3

CH

2 MgBr/THF 0 25 To a solution of zirconocene dichloride (1.76 g, 6.02 mmoles) in dry THF (25 ml), was slowly added ethylmagnesium bromide (12 ml, 1 M in THF, 12 mmol) at -78*C. The green solution was stirred for 15 minutes at -78*C and then warmed to 2"C until the reaction color turned red (15 minutes). A solution of 3,4-dimethoxy-benzaldehyde (1.00 g, 6.02 mmol) in dry THF (20 ml) was added and the reaction was allowed to warm up to RT over - 73 1.5 hours. Solvent was removed under reduced pressure, and dichloromethane (20 ml) was added. The reaction mixture was cooled to 0*C and titanium chloride (IV) (6 ml, 1M in dichloromethan, 6 mmol) was added. The reaction was allowed to warm up to RT over 30 minutes, and quenched with saturated ammonium chloride solution. The mixture was 5 filtered through celite and portioned between dichloromethane and water. The combined dichloromethane was washed with saturated aqueous solution of ammonium chloride, saturated aqueous sodium bicarbonate and brine. The organic phase was dried over an hydrous sodium sulfate and concentrated under reduced pressure. The residue was puri fied by silica gel chromatography (gradient: 8% to 30%ethyl acetate in hexane) to yield 4 10 cyclopropyl-1,2-dimethoxy-benzene as yellow oily residue (0.2 g, 19%). Ref: Vincent Gandon et al. Eur. J. Org. Chem. 2000, 3713. 'H NMR (CDC 3 ) d: 0.60-0.66 (m, 2H), 0.87 0.92 (m, 2H), 1.81-1.91 (m, 1H), 3.85 (s, 3H), 3.87 (s, 3H), 6.62-6.79(m, 3H). Step 2. 5-( 2 -Cyclopropyl-4,5-dimethoxy-phenoxy)-pyrimidine-2,4-diamine

NH

2 0 O N 0 O N NH 2 0 N 0 15 5-( 2 -Cyclopropyl-4,5-dimethoxy-phenoxy)-pyrimidine-2,4-diamine was prepared from 4 cyclopropyl-1,2-dimethoxy-benzene following the procedure of step I and steps 3-7 of Example 2 above. Example 12: 5-(5-Chloro-2-cyclopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine

NH

2 0 Oe: N 0 N NH 2 CI 20 Step 1. 1-Choro-4-cyclopropyl-2-methoxy-benzene -74 Br MgBr THF Ci P(Ph)2 X-'P(Ph)2 NiCl 2 O C To a solution of 4-bromo-1-chloro-2-methoxy-benzene (1.45 g, 6.55 mmol) in dry THF (10 ml), was added {1,3-bis (diphenylphosphino)-propanel dichloronickel (II) and cyclo propylmagnesium bromide (46 ml,0.5 M in THF, 23 mmoles) at RT. The solution was 5 stirred at RT for 2 hours, and then heated at 65"C for 48 hours. Aqueous hydrochloric acid solution (1 N, 20 mL) was aded, and the mixture was then cooled to RT and stirred for 30 minutes. The reaction mixture was partitioned between ethyl acetate and water. The com bined organic phase was washed with brine, dried over anhydrous sodium sulfate, and con centrated under reduced pressure. The residue was purified by silica gel chromatography 10 (2% ethyl acetate in hexane) to yield 1-chloro-4-cyclopropyl-2-methoxy-benzene as yellow oily residue (0.81 g, 67%). 'H NMR (CDCl 3 ) d: 0.65-0.70 (m, 2H), 0.94-1.00 (m, 2H), 1.85-1.89 (m, 1H), 3.89 (s, 3H), 6.57(dd, 1H, J=8.1 Hz, 2.0 Hz), 7.21 (d, 1H, J=8.1 Hz). Step 2. 5-(5-Chloro-2-cyclopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine

NH

2 O N O 0 N NH 2 C1 C1 15 5-(5-Chloro-2-cyclopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine was prepared from 4 -cyclopropyl-1,2-dimethoxy-benzene following the procedure of step 1 and steps 3 7 of Example 2 above. Example 13: 5-(2-Isopropyl-5-methanesulfonyl-4-methoxy-phenoxy)-pyrimidine-2,4 diamine

NH

2

NH

2 0 N0 N ON

NH

2 0 N NH 2 0!5-90 - 75 To a mixture of 5-(2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine (0.32g, 1.17mmol), prepared according to Example 2, and methanesulfonic anhydride (0.81g, 4.67mmole) was added trifluoromethamesulfonic acid (0.45g, 3.00 mmol), and the mix ture was heated at 80*C for 16 hrs. The reaction mixture was poured into ice water, basified 5 with saturated NaHCO 3 solution and extracted into dichloromethane, which was dried over Na 2 SO4, filtered and concentrated in vacuo. The residue was purified via flash chro matography on silica gel (3%CH 3 0H in CH 2 Cl 2 with 0.1%NH 4 0H) gave 5-(2-isopropyl-5 methanesulfonyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine as a white solid (0.248 g, 90%; 0.107 g), MS (M+H): 353. 10 Example 14: 5-[5-(2,3-Dihydro-1H-tetrazol-5-yl)-2-isopropyl-4-methoxy-phenoxy) pyrimidine-2,4-diamine Step 1: 5-(5-odo-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine

NH

2

NH

2 0 N 0 N "0 N NH 2 0 NH2 To a solution of 5-(2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine (0.40 g, 15 1.44 mmol) in glacial acetic acid (4 ml) at RT was added a solution of iodine monochloride (0.28 g, 1.76 mmol) in glacial acetic acid (4 ml). Water (6 ml) was also added, and the reac tion was stirred for 16 hours, after which another portion of iodine monochloride (0.4g, 2.47mmole) in glacial acetic acid (4ml) was added. The reaction mixture was stirred for an additional hour at RT. The acidic mixture was basified with saturated NaHCO3 solution 20 and extracted into dichloromethane. The organic layer was dried over Na 2 SO4, filtered and concentrated in vacuo. The residue was purified via flash chromatography (5%CH 3 0H in

CH

2

CL

2 with 0.1% NH 4 0H) to give 5-(5-iodo-2-isopropyl-4-methoxy-phenoxy)-pyrimi dine-2,4-diamine as beige colored solid (0.536 g, 92%). M+H 400. Step 2. 5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-benzonitrile -76

NH

2

NH

2 O N O N O N NH 2 0 N NH 2 N A mixture of 5-(5-iodo-2-isopropyl-4-methoy-phenoxy)-pyrimidine-2,4-diamine (0.37g, 0.925 mmol) and CuCN (0.12 g, 1.39 mmole) in DMF (5 ml) was heated at 120*C for 3 hours. Water (100 ml) was added, and the precipitate was collected. The residue was tri 5 turated with methanolic dichloromethane (10% CH 3 0H in CH 2

CI

2 with 0.1% NH 4 0H) to release the product from its copper complex and filtered. The filtrate was concentrated and purified via flash chromatography (3%CH 3 0H in CH 2 Cl 2 with 0.1% NH 4 0H) to give 5-( 2

,

4 -diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-benzonitrile as white solid (0.12 g, 44%): M+H 300. 10 Step 3. 5-{5-(2,3-Dihydro-1H-tetrazol-5-yl)-2-isopropyl-4-methoxy-phenoxyl pyrimidine-2,4-diamine

NH

2

NH

2 O N O N N I -:- NN 0 N NH 2 0 N NH2 N/ NH N

\N

To a hot solution of 5-( 2

,

4 -diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-benzo nitrile ( 0.2 g, 0.67mmol) in xylene (15 ml) at 120"C was added azidotributyltin (1.10 g, 15 0.67 mmol), and the reaction mixture was heated for two hours. Another portion of azido tributyltin (1.10 g, 3.34 mmol) was added, and the mixture was heated for another 5 hours. The reaction mixture was cooled to 0*C and bubbled with HCl gas for five minutes. The solid formed was collected by filtration and washed with CH 2 Cl 2 (3 x 5 ml). Purification of the solid by preparative HPLC (15-95%CH 3 CN in water, 10 minute gradient) gave 5-[5 20 (2,3-dihydro- 1H-tetrazol-5-yl)-2-isopropyl-4-methoxy-phenoxy]-pyrimidine-2,4-diamine HCI salt, as white solid (62 mg, 25%). M+H 343. Example 15: 5-[5-( 1 H-Imidazol-2-yl)-2-isopropyl-4-methoxy-phenoxy]-pyrimidine 2,4-diamine - 77 Step 1. 5-[5-(4,5-Dihydro-1H-imidazol-2-yl)-2-isopropyl-4-methoxy-phenoxy] pyrimidine-2,4-diamine

NH

2

NH

2 O NH1. HCI (g)/MeOH, P)C O N e:,N 1 ~~N 2

.H

2 N~H2 /MeOH II O N NH 2 2 0 N NH 2 N N NH \_I A cooled (0*C) suspension of 5-(2,4-diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy 5 benzonitrile ( 0.138 g, 0.461 mmol) in dry methanol (15 ml) was bubbled with HCI gas for 10 minutes and refrigerated overnight. Solvent was evaporated under reduced pressure to give a yellow solid which was redissolved in dry methanol (10 ml). Ethylene diamine (0.034 ml, 0.509mmol) was added and the reaction mixture was refluxed for 20 hours and con centrated under reduced pressure. The residue was purified by silica gel chromatography 10 (gradient: 7- 50% methanol in methylene chloride /0.1% concentrated

NH

4 0H) to yield 5 [5-(4,5-dihydro-1H-imidazol-2-yl)-2-isopropyl-4-methoxy-phenoxy] -pyrimidine-2,4-di amine which was crystalized from methanol /ethyl acetate /ether as a white solid, (0.053g, 33%). 'H NMR (DMSO) delta: 1.26 (d, 6H, J=6.9 Hz), 3.33-3.48 (m, 5H), 3.85 (s, 3H), 5.83 (b, 2H), 6.30 (b, 2H), 6.56(b, 1H), 6.97 (s, IH), 7.19 (s, 1H), 7.33 (s, 1H). M+H: 343. 15 Step 2.5-[5-(1H-Imidazol-2-yl)-2-isopropyl-4-methoxy-phenoxy]-pyrimidine-2,4 diamine

NH

2

NH

2 O N O N 1 I BaMnO 4

/CH

2 C1 2 ON NH 2 0 N NH 2 N NH N NH To a solution of 5-[5-(4,5-dihydro-1H-imidazol-2-yl)-2-isopropyl-4-methoxy-phenoxy] pyrimidine-2,4-diamine (0.033 g, 0,096 mmol) in dry methylene chloride (25 ml) was 20 added barium manganate (0.4 g, 1.56 mmol). The reaction mixture refluxed over night, after which more of barium manganate (0.1 g) was added, and the mixture was refluxed for another 6 hours. The reaction mixture was filtered through celite, and the filtrate was concentrated under reduced pressure. The residue was purified with preparative TLC (8% - 78 methanol in methylene chloride /0.1% concentrated ammonium hydroxide) to yield 5-[5 (1H-imidazol-2-yl)-2-isopropyl-4-methoxy-phenoxy]-pyrimidine-2,4-diamine as pale yellow solid (0.026 g, 41%). 1 H NMR (DMSO) delta: 1.29 (d, 6H, J=6.9 Hz), 3.3-3.39 (in, 1H), 3.94 (s, 3H), 5.53 (b, 2H), 6.00 (b, 2H), 7.01 (b, 3H), 7.36 (b, 1H), 7.45 (s, 1H). M+H: 5 341, M-H: 339. Example 16: 1-[5-( 2

,

4 -Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl] ethanone and 1-[5-(2,4-Diamino-pyrimidin-5-yloxy)-2-hydroxy-4 isopropyl-phenyll-ethanone

NH

2

NH

2

NH

2 0 N + 0 N 0O N NH 2 HO N NH 2 ON NH 2 o 0 10 5-(2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine in anhydrous dichloro ethane (20 mL) was added to TFA (0.06 mL, 0.77 mmol), acetyl chloride (0.31 mL, 4.37 mmol), and aluminum trichloride (583 mg, 4.37 mmol). After stirring for 22 hours at RT, water (1.2 mL) was added to the reaction at 0*C. The mixture was dried using anhydrous sodium sulfate and concentrated in vacuo. Aqueous sodium hydroxide (0.2M, 10 mL) was 15 added to the residue and the mixture was heated at 100"C for 1 hour. After cooling, the reaction was extracted with dichloromethane. The dichloromethane layer was dried using anhydrous magnesium sulfate, concentrated, and purified with silica gel column chroma tography eluting with 96/4/0.1 dichloromethane/ methanol/ ammonium hydroxide to yield 1-[5-( 2

,

4 -diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyll-ethanone (72 mg, 20 31%) as off-white solid, MS (M+H) = 317, 'H NMR (hydrochloride salt) - (DMSO-d 6 ) 5: 1.24 (d, 6H, j = 6.9 Hz), 2.51 (s, 3H), 3.19 (m, 1H, J = 6.9 Hz), 3.93 (s, 3H), 7.13 (s, 1H), 7.18 (s, 1H), 7.29 (s, 1H), 7.62 (s, 2H), 8.30 (s, 1H), 8.60 (s, 1H), 12.01 (s, 1H). Also recovered was 1-[5-(2,4-diamino-pyrimidin-5-yloxy)--2-hydroxy-4-isopropyl-phenyl] ethanone (43 mg, 20%) as pale yellow solid, MS (M+H) = 303, 'H NMR (hydrochloride 25 salt) - (DMSO-d 6 ) 5: 1.18 (d, 6H, J = 6.9 Hz), 2.59 (s, 3H), 3.10 (m, 1H, J = 6.9 H), 7.00 (s, 1H), 7.26 (s, 1H), 7.54 (s, IH), 7.60 (s, 2H), 8.32 (s, 1H), 8.62 (s, 1H), 11.75 (s, 1H), 12.05 (s, 1H) Example 17: 5-( 2

,

4 -Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-benzoic acid -79

NH

2

NH

2 O N 0_N O 7 N NH 2 o N NH 2 11 HO N To a suspension of 5-(2,4-diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-benzo nitrile (50 mg, 0.17 mmol, from Example 15) in ethanol (1 mL) was added sodium hydroxide (174 mg, 4.34 mmol, dissolved in 1 mL water). After refluxing overnight, the 5 reaction was cooled in an ice bath. Aqueous hydrochloric acid (3M) was added until the pH of the reaction was 7. The white solid precipitate was collected, washed with small amounts of water and dichloromethane, and dried to yield 5-(2,4-diamino-pyrimidin-5 yloxy)-4-isopropyl-2-methoxy-benzoic acid: (51 mg, 96%, MS (M+H) = 319), which was converted to the hydrochloride salt: 'H NMR - (DMSO-d 6 ) : 1.23 (d, 6H, J = 6.9 Hz), 10 3.17 (m, 1H, J = 6.9 Hz), 3.85 (s, 3H), 7.08 (s, 1H), 7.26 (s, 2H), 7.53 (s, 2H), 8.33 (s, 1H), 8.60 (s, IH), 11.65 (s, 1H). Example 18: 5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-benzamide

NH

2

NH

2 O N O N O N NH 2 O N NH2 N

H

2 N 0 To 5-(2,4-diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-benzonitrile (49 mg, 0.16 15 mmol, from Example 15) suspended in ethanol (1 mL) was added sodium hydroxide (64 mg, 1.60 mmol, dissolved in 1 mL water). The reaction was heated at 1 10 0 C for 5 hours, cooled, and washed with dichloromethane (25 mL). The dichloromethane layer was con centrated and purified by preparatory TLC plates (92/8/0.5 dichloromethane/ methanol/ ammonium hydroxide) to yield 5-(2,4-diamino-pyrimidin-5-yloxy)-4-isopropyl-2-meth 20 oxy-benzamide as white solid (9 mg, 17%, MS (M+H) = 318), which was converted to the hydrochloride salt: 'H NMR - (DMSO-d 6 ) 6: 1.05 (d, 6H, J = 6.9 Hz), 3.00 (m, 1H, J = 6.9 Hz), 3.75 (s, 3H), 6.91 (s, 1H), 7.07 (s, 1H), 7.21 (s, 1H), 7.37 (s, 2H), 7.44 (s, 1H), 7.47 (s, 1H), 8.15 (s, 1H), 8.43 (s, 1H), 11.52 (s, 1H) Example 19: [5-( 2

,

4 -Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyll-urea -80 Step 1. 5-(5-Amino-2-isopropyl-4-methoxy-phenoxy)-pyrimiine-2,4-diamine

NH

2

NH

2 O N O--------- , N N <NH2 O N NH2

NO

2

NH

2 To 5-(2-isopropyl-4-methoxy-5-nitro-phenoxy)-pyrimidine-2,4-diamine (2.1 g, 6.58 mmol) suspended in ethanol (150 mL) in a Parr bomb, was added 10% palladium on char 5 coal (210 mg). After hydrogenation in the Parr hydrogenator overnight at 35 psi, the reac tion was filtered through celite. The celite pad was washed with ethanol and ethyl acetate and the filtrate was concentrated. Purification with silica gel column chromatography (92/8/0.1 dichloromethanel methanol/ ammonium hydroxide) gave 5-(5-amino-2-iso propyl-4-methoxy-phenoxy)-pyrimnidine-2,4-diamine as a pale orange solid (468 mg, 25%, 10 (M+H)* = 290), which was converted to the hydrochloride salt. 'H NMR - (DMSO-d 6 ) 8: 0.99 (d, 6H, J = 6.9 Hz), 2.92 (m, 1H, J = 6.9 Hz), 3.66 (s, 3H), 6.64 (s, IH), 6.82 (s, 1H), 7.05 (s, 1H), 7.40 (s, 2H), 8.10 (s, 1H), 8.42 (s, 1H). Step 2. [5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl}-urea

NH

2

NH

2 O N O e: N -O ; NH 2 -- O N NH2

NH

2 HN

H

2 N 15 To 5-(5-amino-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine (314 mg, 1.09 mmol) suspended in water (3 mL) was added acetic acid (0.25 mL, 4.34 mmol). Once all solids had dissolved, sodium cyanate (71 mg, 1.09 mmol, dissolved in 1.5 mL water) was added dropwise. After 30 minutes, the reaction was concentrated and purified with silica gel column chromatography eluting with 92/8/0.1 dichloromethanel methanol/ ammoni 20 um hydroxide to yield [5-( 2 ,4-diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phen yl]-urea as an off-white solid (244 mg, 68%, M+H)* = 333), which was converted to a hydrochloride salt: 'H NMR - (DMSO-d 6 ) 5: 1.18 (d, 6H, J = 6.9 Hz), 3.02 (m, 1H, J = 6.9 Hz), 3.89 (s, 3H), 6.94 (s, 1H), 7.00 (s, 1H), 7.54 (s, 2H), 7.85 (s, 1H), 8.08 (s, 1H), 8.38 (s, 1H), 8.63 (s, 1H), 11.61 (s, 1H) - 81 Example 20: N-[5-( 2

,

4 -Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyll acetamide

NH

2

NH

2 O N O N N NH 2 *O N NH2 22 NH 2 HN To 5-(5-amino-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine (100 mg, 0.35 5 mmol, from Example 17) dissolved in anhydrous dichloromethane (10 mL) was added anhydrous pyridine (0.03 mL, 0.38 mmol). To this reaction mixture at 0*C was added acetyl chloride (0.03 mL, 0.38 mmol). After stirring at RT for 1 hour, the reaction was concentrated and purified with preparatory TLC (93/7/0.5 dichloromethane/ methanol/ ammonium hydroxide) to yield an off-white solid (74 mg mixture of bis- and tris-acetyl 10 ated products). To this solid was added aqueous sodium hydroxide (0.2 M, 2 mL), and the mixture was refluxed for 1 hour, cooled, and washed with dichloromethane (10 mL). The dichloromethane layer was dried using anhydrous magnesium sulfate and concentrated in vacuo to yield N- [5-( 2 ,4-diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenylI acetamide as a white solid (53 mg, 46%, M+H)* =332) which was converted to a hydro 15 chloride salt: 'H NMR - (DMSO-df,) & 1.21 (d, 6H, J= 6.9 Hz), 2.08 (s, 3H), 3.09 (m, 1H, J = 6.9 Hz), 3.88 (s, 3H), 7.00 (s, 1H), 7.09 (s, 1H), 7.57 (s, 2H), 7.74 (s, 1H), 8.36 (s, 1H), 8.63 (s, 1H), 9.26 (s, 1H), 11.75 (s, 1H). Example 21: 5-(2-Isopropyl-4-methoxy-5-nitro-phenoxy)-pyrimidine-2,4-diamine The synthetic procedure used in this Example is outlined in Scheme K 0 0 OH Step I OH Step 2 OH Step 3 Pd/C Tosyl O

CH

3 MgBr 0 Chloride 20 OTs Step 4 OTs 0 2 N OTs Step 5 0 0 H 0 KOH

NO

2 - 82 NH 2 OH Step 6 O1O./CN Step 7 0 N NC OTs 0 O N NH 2

NO

2

N

2 w 2 SCHEME K Step 1. 2-(1-Hydroxy-1-methyl-ethyl)-4-methoxy-phenol To a solution of methylmagnesium bromide (221 ml, 665 mmol) in 800 ml THF at 0"C was 5 added 1-(2-hydroxy-5-methoxy-phenyl)-ethanone (20.21 g, 302 mmol) in portions over 30 min. The mixture was allowed to warm to RT. After 16 h the mixture was quenched by the slow addition of 10% NH 4 Cl, carefully acidified to pH = 1 (slow addition) with concentrated HCl and extracted with Et 2 0. The combined organics were washed with

H

2 0, washed with brine, dried over MgSO 4 , filtered and concentrated in vacuo to give 2 10 (1-hydroxy-1-methyl-ethyl)-4-methoxy-phenol (50.57 g, 100%) as a tan solid. Step 2. 2-Isopropyl-4-methoxy-phenol To a solution of 2-(1-hydroxy-1-methyl-ethyl)-4-methoxy-phenol (50.57 g, 278 mmol) in 550 ml AcOH was added 10% Pd/C (as a slurry in 20 ml H 2 0). Ammonium formate (87.52 g, 1388 mmol) was added in portions. The mixture was warmed to 100*C for 1 15 hour, cooled and filtered through a pad of celite. The celite pad was washed with ethyl acetate. The mother liquor was mixed with H 2 0 and extracted with ethyl acetate. The combined organics were washed with H 2 0, washed with brine, dried over Na 2 SO4, filtered and concentrated in vacuo to give 2-isopropyl-4-methoxy-phenol (44.74, 97%) as a pale yellow oil. 20 Step 3. Toluene-4-sulfonic acid 2-isopropyl-4-methoxy-phenyl ester To a solution of 2-isopropyl-4-methoxy-phenol (56.91 g, 342 mmol) triethylamine (57.3.0 ml, 411 mmol) in 750 ml CH 2

CI

2 was cooled to 0*C. p-Toluenesulfonyl chloride (68.54 g, 360 mmol) in 250 ml CH 2 C1 2 was added drop-wise at a rate that maintained the internal temperature < 10"C. The mixture was allowed to warm to RT. After 16 h, H 2 0 was added 25 and the mixture was extracted with CH 2 Cl 2 . The combined organics were washed with brine, dried with Na 2 SO4, filtered and concentrated in vacuo to afford a crude solid. Re crystallization from hexanes afforded toluene-4-sulfonic acid 2-isopropyl-4-methoxy phenyl ester (81.67 g, 74%) as white needles. Step 4. Toluene-4-sulfonic acid 2-isopropyl-4-methoxy-5-nitro-phenyl ester - 83 To a solution of toluene-4-sulfonic acid 2-isopropyl-4-methoxy-phenyl ester (19.00 g, 59 mmol) in 118 mL AcOH was added 236 ml fuming HNO 3 over 20 min. After 16 h the solution was pouring into a rapidly stirring slurry of 2 1 of ice/H 2 0. After 15 min the preci pitate was filtered, washed with H 2 0 and dried under vacuum (50*C) to give toluene-4 5 sulfonic acid 2-isopropyl-4-methoxy-5-nitro-phenyl ester (21.27 g, 98 %) and toluene-4 sulfonic acid 2-isopropyl-4-methoxy-3-nitro-phenyI ester and as a pale yellow solid (7:1 inseperable mixture). Step 5. 2-Isopropyl-4-methoxy-5-nitro-phenol A solution of toluene-4-sulfonic acid 2-isopropyl-4-methoxy-5-nitro-phenyl ester and 2 10 isopropyl-4-methoxy-3-nitro-phenyl ester (21.20 g, 58 mmol ) and and 175 mL 2M KOH in 350 mL EtOH was warmed to 100"C. After 45 minutes the mixture was cooled, evapo rated and taken up in 11 of water. The solution was acidified to pH = 1 with 12 M HC and extracted with ethyl acetate. The combined organics were washed with H 2 0, brine, dried over Na 2 SO4, filtered and concentrated in vacuo. The crude oil was purified via flash chro 15 matography (gradient: 95:5 to 4:1 hexane/ethyl acetate) to afford 3-amino-2-isopropyl-5 nitro-phenol (10.03 g, 81%) as a yellow solid and 3-amino-2-isopropyl-3-nitro-phenoI (1.32 g, 11%) as a yellow oil. Step 6. ( 2 -Isopropyl-4-methoxy-5-nitro-phenoxy)-acetonitrile A mixture of 3-amino-2-isopropyl-5-nitrophenol (9.94 g, 47 mmol), K 2

CO

3 (13.00 g, 94 20 mmol) and benzenesulfonic acid cyanomethyl ester (10.93 g, 52 mmol) in 500 mL DMF was warmed to 50*C. After 16 h the mixture was cooled, poured into 500 mL H 2 0 and ex tracted with toluene/ethyl acetate (1:1). The combined organics were washed with H 2 0, washed with brine, filtered and concentrated in vacuo. The crude solid was recrystallized from EtOH to afford (2-isopropyl-4-methoxy-5-nitro-phenoxy)-acetonitrile (8.95 g, 76%) 25 as a yellow crystalline solid. Step 7. 5-(2-Isopropyl-4-methoxy-5-nitro-phenoxy)-pyrimidine-2,4-diamine A mixture of (2-isopropyl-4-methoxy-5-nitro-phenoxy)-acetonitrile (8.785 g, 35.5 mmol) and Brederick's reagent (14.6 mL, 70.9 mmol) was warmed to 100*C. After 45 min the mixture was evaporated under reduced pressure (50*C, 50 mtorr) to give an orange solid. 30 The solid was added to a solution of aniline hydrochloride (9.19 g, 70.9 mmol) in 150 mL of EtOH. The mixture was warmed to reflux. After 16 hr additional aniline hydrochloride (4.596 g, 35.5 mmol) was added mixture was continued at reflux for 4 h. The solution was concentrated in vacuo and poured into H 2 0. The mixture was extracted with ethyl acetate, washed with H 2 0, washed with brine, dried over Na 2

SO

4 , and concentrated in vacuo to 35 afford a yellow-green solid. This crude product was added to a mixture of 200 mL NMP - 84 and guanidine carbonate (17.70 g, 98 mmol) and warmed to 130"C. After 5 hours the mix ture was cooled then poured onto 2 1 of an ice/H 2 0 mixture. The resulting precipitate was filtered, washed with H 2 0 and dried under vacuum (50*C). The crude solid was recrystal lized from EtOH to afford 5-(2-isopropyl-4-methoxy-5-nitro-phenoxy)-pyrimidine-2,4 5 diamine (8.14 g, 63%, 3 steps) as a yellow crystalline solid (solvated 1:1 with EtOH). M+H)* = 320. Example 22: 1-[5-( 2

,

4 -Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl-3 ethyl-urea Step 1. 5-(5-Amino-2-Isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine

NH

2

NH

2 O N O N 0 N NH 2 O N NH 2 10

NO

2 NH2 To a solution of 5-(2-isopropyl-4-methoxy-5-nitro-phenoxy)-pyrimidine-2,4-diamine (2.953 g, 9.2 mmol) in 250 mL EtOH and 25 AcOH was added 10% Pd/C. The mixture was placed under 50 psi of H 2 via a Parr hydrogenator. After 2.5 h the mixture was filtered through a pad of celite. The pad was washed with ethyl acetate and the solution was 15 partially concentrated in vacuo. The residue was taken up in 500 mL H 2 0 and cooled to 0"C. The solution was slowly acidified to pH = 12 with 50% NaOH extracted with ethyl acetate. The combined organics were washed with H 2 0, washed with brine, dried over Na 2

SO

4 , filtered and concentrated in vacuo to afford 5-(5-amino-2-Isopropyl-4-methoxy phenoxy)-pyrimidine-2,4-diamine (2.156 g, 82%) as a dark-orange solid. 20 Step 2. 1- [5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl] -3-ethyl urea

NH

2

NH

2 0 N O N NH 2 O N NH 2

NH

2 HN 0

HN

- 85 A solution of 5-(5-amino-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine (0.117 g, 0.4 mmol) and ethyl isocyanate (0.034 g, 0.5 mmol) in 4 mL of toluene was heated to 100*C in a sealed tube. After 5 h the solution was cooled and concentrated in vacuo gave a brown solid. Purification via flash chromatography

(CH

2 CI2/MeOH 97:3) 5 afforded 1-[5-(2,4-diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-3-ethyl urea (0.120 g, 83%) as a white solid; (M+H) = 361. Example 23: 1-[5-(2,4-diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-3 phenyl-urea

NH

2 0 NH 2 0- e--,MeO N NH 2 MeO N NH 2 toluene N O

NH

2 N 10 5-(5-amino-2-Isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine (0.309 g, 1.1 mmol) was converted, as described in the above procedure, to 1-[5-(2,4-diamino-pyrimi din-5-yloxy)-4-isopropyl-2-methoxy-phenyl] -3-phenyl-urea (0.122 g, 28%) as white solid; [MH]* = 408. Example 24: 5-(2-Isopropyl-4-methoxy-5-pyrrol-1-yl-phenoxy)-pyrimidine- 2 ,4 15 diamine

NH

2

NH

2 O N NH 2 0 N NH 2

NH

2 To a solution of 5-(5-amino-2-Isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine (0.303 g, 1.0 mmol) in 15 mL AcOH was added 2,5-dimethoxypyran (0.152 g, 1.2 mmol). The solution was warmed to reflux. After 2 h the solution was cooled and poured over 20 ice/H 2 O. The solution was converted to pH = 8 with 50% NaOH and extracted with ethyl acetate (3x75 mL). The combined organics were washed with H 2 0, washed with brine, dried with Na 2

SO

4 , filtered and concentrated in vacuo to give a brown solid. Purification - 86 via flash chromatography

(CH

2 Cl 2 /MeOH 97:3) afforded 5-(2-isopropyl-4-methoxy-5 pyrrol-1-yl-phenoxy)-pyrimidine-2,4-diamine (0.244 g, 72%) as a pale yellow solid. (M+H) = 340. Similarly prepared from from 5-(5-amino-2-Isopropyl-4-methoxy-phenoxy)-pyrimidine 5 2,4-diamine (0.313 g, 1.1 mmol) and 2,5-hexanedione (0.14 ml, 1.2 mmol) was 5-[5-(2,5 Dimethyl-pyrrol-1-yl)-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine, (0.259 g, 64 %). (M+H) = 368. Example25: 5-(2-Isopropyl-4-methoxy-5-[1,2,3]triazol-1-yl-phenoxy)-pyrimidine-2,4 diamine

NH

2

NH

2 O IN N Cl N-NHTs I MeO N NH 2 MeOH/ TEA MeO N

NH

2

NH

2 10 Following the procedure of Harada et al., Heterocycles 48:695-702 (1998), to a solution of 5-(5-amino-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine (0.400 g, 1.8 mmol) in 5 ml methanol at 0*C was added trimethylamime (0.308 g, 3.0 mmol) and hydrazine X' (0.388 g, 1.4 mmol). The solution was warmed to 50*C. After 4 h the mix 15 ture was concentrated in vacuo and extracted with CH 2 Cl 2 . The combined organics were washed with H 2 0, washed with brine, dried over Na 2 SO4, filtered, and concentrated in vacuo. Purification via flash chromatography (94:6 CH 2

CI

2 /MeOH) afforded 5-(2-isoprop yl-4-methoxy-5-[1,2,3]triazol-1-yl-phenoxy)-pyrimidine-2,4-diamine (0.145 g, 31%) as a white solid; [MH]+= 342. 20 Example 26: 1-[5-(4-Amino-2-methyl-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy phenyl]-pyrrolidin-2-one Step 1. 4-Chloro-N-[5-(2,4-diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl) butyramide -87

NH

2 0 NH 2 NaHPO MeO N NH 2 MeO N NH 2 2N

NH

2 C To a solution of 5-(5-amino-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine (0.400 g, 1.4 mmol) in 15 ml CHC1 3 and Na 2

HPO

4 (0.392 g, 2.8 mmol) was added 4 chlorobutyryl chloride (0.194 g, 1.4 mmol) drop-wise. After 4.5 h, H 2 0 and CH 2 Cl 2 were 5 added and the mixture was allowed to stir 15 min. The mixture was neutralized with 2N Na 2

CO

3 and extracted with CH 2

C

2 . The combined organics were washed with brine, dried over Na 2 SO4, filtered and concentrated in vacuo to afford 4-chloro-N-{5-(2,4-diamino pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-butyramide (0.495 g, 91%) as brown foam; [MH)* = 394. 10 Step 2. 1-[5-(4-Amino-2-methyl-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl] pyrrolidin-2-one

NH

2 O~ NNH 2 I N NaOMe O0 N0 MeO N NH 2 N 0 MeO N NH 2 C O To a solution of 5 ml 1.9 M NaOMe in MeOH was added 4-chloroamide X (0.495 g, 1.3 mmol). After 6 h the solution was concentrated in vacuo. The residue was taken up in 15 ethyl acetate, washed with H 2 0, washed with brine, dried over Na 2

SO

4 , filtered and con centrated in vacuo to give 1-[5-(4-amino-2-methyl-pyrimidin-5-yloxy)-4-isopropyl-2 methoxy-phenylI-pyrrolidin-2-one (0.230 g, 47%) as white solid; [MH]= 358; mp (HCl salt) > 300 0 C. Example 27: 1-[5-(2,4-Diamino-pyrmidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl] 20 1H-imidazole-2-thiol Step 1. 5-(2-Isopropyl-5-isothiocyanato-4-methoxy-phenoxy)-pyrimidine-2,4-diamine -88

NH

2

NH

2 O N N S MeO N NH 2 TFA MeO N NH 2

NH

2 To a solution of 5-(5-amino-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine (0.100 g, 0.4 mmol) in 1 ml H 2 0 and TFA (0.040 g, 0.4 mmol) was added thiophosgene (0.040 g, 0.4 mmol) were added. After 1 h the mixture was neutralized with 2M NaOH and 5 extracted with CH 2 Cl 2 . The combined organics were washed with brine, dried over Na 2

SO

4 , filtered and concentrated in vacuo to afford 5-(2-isopropyl-5-isothiocyanato- 4 methoxy-phenoxy)-pyrimidine-2,4-diamine (0.042 g, 36%) as brown foam [MH]* = 334. Step 2. 1-15-( 2 ,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-IH imidazole-2-thiol

NH

2 OEt

NH

2 O EtO NH2 O MeO N NH2 MeO N NH2 S H 10 To a solution of amino acetal (0.173 g, 1.3 mmol) in 10 ml EtOH was added a solution of thio-isocyanate (0.430 g, 1.3 mmol) in 2 ml EtOH. The mixture was warmed to reflux. After 30 min the mixture was cooled, concentrated in vacuo and suspended in 1M HCl and refluxed again for another 30 min reaction was neutralized with saturated NaHCO3 and 15 extracted with CH 2

CI

2 The combined organics were washed with brine, dried over Na 2

SO

4 , filtered and concentrated in vacuo to afford 1-[5-(2,4-diamino-pyrimidin-5-yloxy)-4 isopropyl-2-methoxy-phenylY-1H-imidazole-2-thiol (0.298 g, 50%) as white solid [MH)* = 373. Example 28: 5-(5-Imidazol-1-yl-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4 20 diamine -89

NH

2

NH

2 N N 0 N1 Cul Af N N 31MeO N NH 2 MeO N NH 2 DMF/ Cs 2

CO

3 N A suspension of 5-iodo-diaminopyrimidine (0.294 g, 0.74 mmol), imidazole (0.120 g, 1.8 mmol), CuI (0.070 g, 0.4 mmol), Cs 2

CO

3 (0.616 g, 1.9 mmol) in 4 ml DMF was heated to 100*C. After 72 h. the mixture was cooled, diluted with H 2 0 and extracted with ethyl 5 acetate. The combined organics were washed with brine, dried over Na 2

SO

4 , filtered and concentrated in vacuo. Purification via preparative TLC (94:6 CH 2 Cl 2 /MeOH) afforded 5 (5-imidazol- 1 -yl-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine (0.020 g, 8%) as a white solid; [MH]* = 341. Example 29: 2-[5-( 2 ,4-Diaminopyrimidin-5-yloxy)-4-isopropyl-2methoxy-phenyl] 10 propan-2-ol

NH

2

NH

2 0 N NH 2 O N NH 2 0 0 To a solution of methylmagnesium bromide (83.4 mmol, 27.8 ml, 3.0 M in Et 2 O) in 83 mL THF at 0*C was added 1- [5-(2,4-diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy phenyl)-ethanone (2.523 g, 8.3 mmol, from Example 16) in portions. After 16 h the mix 15 ture cooled to 0*C and was quenched by the addition 10% NH 4 CI. H 2 0 was added and the mixture was extracted with ethyl acetate. The combined organics were washed with H 2 0, washed with brine, dried over NaHCO 3 , filtered and concentrated in vacuo. The crude solid was purified via flash chromatography (94:6 CH 2

CI

2 /MeOH) to afford acetophenone X (1.00 g, 40 % recovered) as a white solid and alcohol X (1.00 g, as a 1:1 mixture of 20 methylated/demethylated). The mixture of alcohols were taken up in 31 ml DMF. K 2 C0 3 (0.65 g, 4.7 mmol) and lodomethane (0.098 ml, 1.6 mmol) were added and the mixture was warmed to 50*C. Additional portions of iodomethane (0.019 mL, 0.6 mmol) was added at 1, 2 and 3 hr. After 16 h the mixture was cooled and 10% NH 4 C and extracted with ethyl acetate. The combined organics were washed with H 2 0, washed with brine, 25 dried with Na 2

SO

4 , filtered and concentrated in vacuo to give 2-(5-(2,4-diaminopyrimidin- - 90 5-yloxy)-4-isopropyl-2-methoxy-phenyl]-propan-2-ol (0.711 g, yiled) as a white solid. [MH]*= 333. Example 30: 5-( 2 ,5-Diiosopropyl-methoxy-phenoxy)-pyrimidine-2,4-diamine

NH

2 NH 2 0 N NH 2 O N NH 2 0§ 5 To a solution of 2-[5-( 2

,

4 -diaminopyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl} propan-2-ol (0.350 g, 1.1 mmol) in 10 ml CH 2 Cl 2 was added TFA (4.0 ml, 52.6 mmol) and triethylsilane (1.7 ml, 10.5 mmol). After 30 min saturated NaHCO3 was added and the mixture was extracted with ethyl acetate. The combined organics were washed with brine, dried over Na 2

SO

4 , filtered and concentrated in vacuo to give a crude oil. Purification via 10 flash chromatography (96:4 CH 2 Cl 2 /MeOH) gave 5-(2,5-diiosopropyl-methoxy-phenoxy) pyrimidine-2,4-diamine (0.225 g, 68%) as a white solid. [MH)*= 317. Example 31: 1-[5-(2,4-Diamino-pyrimidine-5-yloxy)-4-isopropyl-2-methoxy-phenyll ethanol

NH

2

NH

2 , N NaBH 4 0 N MeO N NH 2 MeO N NH 2 0 HO 15 To a solution of 1-[5-( 2 ,4-diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl) ethanone (2.500 g, 8.3 mmol) in 100 ml MeOH was slowly added NaBH 4 (1.566 g, 41.4 mmol) at 0*C. The solution was allowed to warm to RT. After 20 h, the saturated

NH

4 Cl was added, the mixture was concentrated in vacuo and extracted with ethyl acetate. The combined organics were washed with brine, dried over Na 2 SO4, filtered and concentrated 20 in vacuo. Purification v'ia silica gel column chromatography (9:1 CH 2 Cl 2 /MeOH) afforded to 1-[5-(2,4-diamino-pyrimidine-5-yloxy)-4-isopropyl-2-methoxy-phenyl] -ethanol (1.613 g, 60%) as white foam; [MH]*= 301.

- 91 Example 32: 5-(2-Isopropyl-4-methoxy-5-vinyl-phenoxy)-pyrimidine-2,4-diamine and 5- [2-Isopropyl-4-methoxy-5-(1 -methoxy-ethyl)-phenoxy]-pyrimidine-2,4 diamine NH -HNH 2 O DAST 2 0 0N

NH

2 N NH 2 HO 0 5 To a solution of 1- [5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl] ethanol ( 1.613 g, 5.3 mmol ) in 30 ml CH 2

CI

2 at -78*C was added (diethylamino)sulfur trifluoride (DAST) (0.935 g, 5.8 mmol). After stirring 1.5 h, saturated NaHCO 3 was added and the mixture was extracted by CH 2

C

2 . The combined organics were washed with brine and dried Na 2

SO

4 , filtered and concentrated in vacuo. Purification via silica gel 10 chromatography (95:5 CH 2

CI

2 /MeOH) gave 5-(2-Isopropyl-4-methoxy-5-vinyl-phenoxy) pyrimidine-2,4-diamine (0.044 g, 3%) as a foam ( [MH)' = 301) and 5-[2-Isopropyl-4 methoxy-5-(1-methoxy-ethyl)-phenoxyl-pyrimidine-2,4-diamine(O.075 g, 4%) as foam. [MHI* = 303. Example 33: 5-(2-Ethyl-3-methoxy-benzyl)-pyrimidine-2,4-diamine 15 The synthetic procedure used in this Example is outlined in Scheme M. Step 1 Step 2 MeO NCHO MeO N 1- 1

H

2 N 2. HCI

NH

2 Step 3 MeO MeO CHO ____ N N

NH

2 SCHEME M Step 1. Cyclohexyl-(3-methoxy-benzylidene)-amine 20 3-Methoxybenzaldehyde (10.105 g, 74.2 mmol) was converted, as described in step 1 of Example 3, to Cyclohexyl-(3-methoxy-benzylidene)-amine (15.08 g, 94%) as a clear oil.

- 92 Step 2. 2-Ethyl-3-methoxybenzaldehyde To a solution of 2,2,6,6-tetramethylpiperidine (4.67 g, 33 mmol) in 75 ml THF at -15"C was added n-butyllithium (12.6 ml, 32 mmol, 2.5 in hexanes) drop-wise maintaining the internal temperature below - 10*C. After 15 min a solution of cyclohexyl-(3-methoxy 5 benzylidene)-amine (3.259 g, 15.0 mmol) in 5.0 ml THF was added and the solution was allowed to stir at -15*C. After 1 h the solution was cooled to -78*C. lodoethane (11.9 ml, 150 mmol) was added in one portion and the solution was allowed to warm to RT over 45 min, poured into 10% NEH4I, and extracted with Et 2 0. The combined organics were washed with H 2 0, washed with brine, dried over MgSO4, filtered and concentrated in 10 vacuo to give a crude imine as an oil. The oil was taken up in 90 ml of THF and HCl (22 ml, 89 mmol, 4.0 M) and warmed to reflux. After 2 the solution was cooled. H 2 0 was added and the mixture was extracted with ethyl acetate. The combined organics were washed with H 2 0, washed with brine, dried over Na 2

SO

4 , filtered and concentrated in vacuo to give a crude oil. Purification via flash chromatography (98:2 hexane/ethyl 15 acetate) gave 2-ethyl-3-methoxy benzaldehyde (1.543 g, 63%, 2 steps) as a clear oil. Step 3. 5-(2-Ethyl-3-methoxy-benzyl)-pyrimidine-2,4-diamine Following the procedure of steps 4-8 of Example 3, 2-ethyl-3-methoxy benzaldehyde (1.025 g, 6.24 mmol) afforded 5-(2-Ethyl-3-methoxy-benzyl)-pyrimidine-2,4-diamine (0.154 g, 10 %, 2 steps) as a pale yellow solid. [MH*] = 259 20 Example 34: 5-(5-Chloro-2-isopropyl-4-methoxy-benzyl)-N2-(2,2,2-trifloro-ethyl) pyrimidine-2,4-diamine The synthetic procedure used in this Example is outlined in Scheme M. CI

NH

2 N Step 1 N Step 2 MeO N S NH 3 MeO N S- Oxone CI CI N H

NH

2 H2 Step 3 N N H N CF N' CF MeO N SO 2 Me 2 3 MeO H CI CI 25 SCHEME

M

- 93 Step 1. 5-(5-Chloro-2-isopropyl-4-methoxy-benzyl)-2-methylsulfanyl-pyrimidin- 4 ylamine To 25 ml of saturated

NH

3 in EtOH was added 4-Choro-5-(5-cloro-2-isopropyl-4-meth oxy-benzyl)-2-methylsulfanyl-pyrinidine (0.580 g, 1.6 mmol). The solution was warmed 5 to 85*C in a sealed reaction vessel. After 3 days the solution was cooled, concentrated in vacuo and suspended in CH 2 C1 2 . The precipitate was filtered and the mother liquor was concentrated in vacuo. Purification via flash chromatography (7:3 hexane/ethyl acetate) afforded 5-(5-chloro-2-isopropyl-4-methoxy-benzyl)-2-methylsulfanyl-pyrimidin-4-yl amine (0.504 g, 92%) as a white solid. 10 Step 2. 5-(5-Choro-2-isopropyl-4-methoxy-benzyl)-2-methylsulfonyl-pyrimidine-4 ylamine To a solution of 4-chloro-5-(5-chloro-2-isopropyl-4-methoxy-benzyl)-2-methylsulfanyl pyrimidine (0.320 g, 0.9 mmol) in 15 ml THF and 15 ml H 2 0 was added Oxone (1.227 g, 2 mmol) in portions. After 16 h the solution was concentrated in vacuo and extracted with 15 ethyl acetate. The combined organics were washed with brine, dried over Na 2 SO4, filtered, and concentrated in vacuo. Purification via flash chromatography afforded 5-(5-chloro-2 isopropyl-4-methoxy-benzyl)-2-methylsulfonyl-pyrimidine-4-ylamine (0.333,96%) as a white solid. Step 3. 5-(5-Chloro-2-isopropyl-4-methoxy-benzyl)-N 2(2,2,2-trifloro-ethyl)-pyrimidine 20 2,4-diamine To a solution of 5-(5-choro-2-isopropyl-4-methoxy-benzyl)-2-methylsulfonyl-pyrimi dine-4-ylamine (0.050 g, 0.1 mmol) in 3 ml ethylene glycol dimethyl ether (DME) was added 0.5 ml 2,2,2-trifluoethyl amine. The mixture was heated in the microwave (130 0 C, 10 barr). After 22 h the mixture was concentrated in vacuo. Purification via reverse phase 25 preparative HPLC afforded the TFA salt of 5-(5-chloro-2-isopropyl-4-methoxy-benzyl) N2-( 2 ,2,2-trifloro-ethyl)-pyrimidine-2, 4 -diamine (0.010 g, 19%) as a white solid); [MH]*= 389. Similarly prepared from 5-(5-Chloro-2-isopropyl-4-methoxy-benzyl)-2-methylsulfonyl pyrimidine-4-ylamine (0.100 g, 0.3 mmol) but using 2-methoxyethylamine was 5-(5 30 Chloro-2-isopropyl-4-methocy-benzyl)-N 2 -(2-methoxy-ethyl)-pyrimidine-2,4-diamine (0.068 g, 63%) as a white solid; [MH = 365. Example 35: 5-[5-Chloro-2-(1-fluoro-1-methyl-ethyl)-4-methoxy-phenoxy]-pyrimi dine-2,4-diamine - 94 The synthetic procedure used in this Example is outlined in Scheme N. 0 OH OH Step 1 OH Step 2 OH Step 3 0 0 o O CH MgBr 0 NC.. -OTs 0 CN CI ACI CI CI F F Step 4 0> Step 5

NH

2 I I + 0 N DAST O CN / CN O S CI I CI 0 N NH 2 SCHEME N 5 Step 1. 1-(4-Chloro-2-hydroxy-5-methoxy-phenyl)-ethanone To a mixture of AlC1 3 (8.89 g, 59 mmol) in CH 2 C1 2 at -10*C was added acetyl chloride (4.1 ml, 58 mmol) drop-wise while maintaining the internal temperature below 0*C. After 20 min 2-Chloro-1,4-dimethoxybenzene (10.0 g, 8.3 mmol) was dissolved in 8 ml CH 2 Cl 2 and added to the above solution drop-wise while maintaining the internal temperature below 10 0*C. After 20 min the mixture was warmed to RT for 1 h then warmed to reflux. After 21 h the solution was cooled, poured over a mixture of ice and concentrated HCl and extracted with dichloromethane. The combined organics were concentrated in vacuo and recrystal lized from H 2 0/EtOH to afford 1-(4-chloro-2-hydroxy-5-methoxy-phenyl)-ethanone (8.78 g, 85%) as a solid. 15 Step 2. 5-Chloro-2-(1-hydroxy-1-methyl-ethyl)-4-methoxy-phenol To a solution of 1-(4-chloro-2-hydroxy-5-methoxy-phenyl)-ethanone (9.80 g, 49 mmol) in 90 mL THF at 0*C was added methyl magnesium bromide (37 mL, 112 mmol, 3.0 M in Et 2 0. After 2 h the reaction was quenched by the addition of 10% NH 4 Cl. The mixture was adjusted to pH = 1 with 2M HCI and extracted with ethyl acetate. The combined 20 organic were washed with H 2 0, washed with brine, dried with MgSO4, filtered and con centrated in vacuo to give a crude solid. Purification via flash chromatography afforded alcohol 5-chloro-2-(1-hydroxy-1-methyl-ethyl)-4-methoxy-phenol (11.85 g, more than 100%) as a yellow solid. Step 3. [5-Chloro-2-(1-hydroxy-1-methyl-ethyl)-4-methoxy-phenoxy)-pyrimidine- 2

,

4 25 diamine -95 To a mixture of 5-chloro-2-(1 -hydroxy- 1 -methyl-ethyl)-4-methoxy-phenol (2.00 g, 9 mmol) and K 2 C0 3 (2.55 g, 19 mmol) in 50 mL DMF was added tosylating reagent (2.34 g, 11 mmol). The mixture was allowed to stir at RT. After 16 h the mixture was poured into 200 ml water and extracted with ethyl acetate. The combined organics were washed with 5 water, washed with brine, dried over Na 2

SO

4 , filterd and concentrated in vacuo to give a crude solid. Purification via flash chromatography (7:3 hexane/ethyl acetate) to afford [5 chloro-2-(I-hydroxy-1-methyl-ethyl)-4-methoxy-phenoxy)-pyrimidine-2,4-diamine (1.62 g, 69%) as a white solid. Step 4. 5-[5-Chloro-2-(1-fluoro-1-methyl-ethyl)-methoxy-phenoxyl-acetonitrile 10 To a solution of [5-chloro-2-(I -hydroxy- 1 -methyl-ethyl)-4-methoxy-phenoxy] -pyrimi dine-2,4-diamine (1.432 g, 5.6 mmol) in 50 ml CH 2 C1 2 at -78"C was added DAST (0.77 ml, 5.9 mmol) drop-wise. After 1.5 the solution was warmed to RT and quenched by the addition of saturated NaHCO 3 solution and extracted with CH 2

CI

2 . The combined organics were washed with brine, dried over Na 2

SO

4 , filtered and concentrated in vacuo to 15 give an inseparable mixture (9:1) of 5-[5-chloro-2-(1-fluoro-1-methyl-ethyl)-methoxy phenoxy]-acetonitrile (1.543 g) and (5-Chloro-2-isopropenyl-4-methoxy-phenoxy) acetonitrile as a pale brown oil. Step 5. 5-[5-Chloro-2-(1-fluoro-I-methyl-ethyl)-methoxy-phenoxy]-pyrimidine-2,4 diamine 20 5-[5-Chloro-2-(1-fluoro-1-methyl-ethyl)-methoxy-phenoxy]-acetonitrile (1.447 g, 4.2 mmol) was converted, as describe in steps 6 and 7 of Example 2, to 5-[5-chloro-2-(1 fluoro-1-methyl-ethyl)-methoxy-phenoxy]-pyrimidine-2,4-diamine (0.263 g, 10 % for three steps) as a yellow solid; mp = 220.1-220.6 0 C (HCl salt); [MH* = 328. Similarly prepared, but starting with 3-fluoro- 1,4-dimethoxybenzene, and using hydrogen 25 ation with Pd/C in step 4 instead of DAST, was 5-(5-Fluro-2-isopropyl-4-methoxy-phen oxy)-pyrimidine-2,4-diamine_(0.778 g, 42%); mp (HCl salt) = 239-241*C; [MH]*= 293. Example 36: 5-(8-Bromo-5-ethyl-2,3-dihydro-benzo[1,4]dioxin-6-yloxy)-pyrimidine 2,4-diamine The synthetic procedure used in this Example is outlined in Scheme 0. HO y CHO Step 1 HO CHO Step 2 CO ) CHO Step O NII HO Br 2 HO B Br Br 0 0 30 Br B BrBr Br - 96 Step 4 0 ' -0 Q ~rN Step 5 . O N' Step 6 O0 CHO

NH

2 Br 0 O Br Br Step7 OH 8 0 0 N tep9 mcpba O TSOCH 2 CN ON NH Br Br Br SCHEME O Step 1. 3-Bromo-4,5-dihydroxy-benzaldehyde 5 To a solution of 3,4-dihydoxy benzaldehyde (15.48 g, 112 mmol) in 500 ml AcOH was added bromine (6.1 ml, 118 mmol) drop-wise in 50 ml AcOH over 10 min. After 4 h the mixture was poured into cold H 2 0. The precipitate was filtered, washed with cold H 2 0 and dried in vacuum to give 3-bromo-4,5-dihydroxy-benzaldehyde (11.64 g, 48%) as a grey solid. 10 Step 2. 8-Bromo-2,3-dihydro-benzo[1,4] dioxine-6-carboxaldehyde To a solution of 3-bromo-4,5-dihydroxy-benzaldehyde (20.78 g, 95 mmol) in 480 ml DMF was added K 2

CO

3 (52.95 g, 383 mmol) followed by 1,2-dibromoethane (8.7 ml, 101 mmol). The mixture was warmed to 100*C. After 18 additional 1,2 dibromoethane (1.0 mL) was added. After 2 h the mixture was poured into water and extracted with ethyl 15 acetate. The combined organics were washed with brine, dried over Na 2

SO

4 , filtered and concentrated in vacuo. The crude solid was purified via flash chromatography (9:1 hexane/ethyl acetate) to give 8-bromo-2,3-dihydro-benzo[1,4]dioxine-6-carboxaldehyde (15.82 g, 99 %) as a white solid. Step 3. (8-Bromo-2,3-dihydro-benzo[1,4] dioxine-6-ylmethylene)-cyclohexyl-amine 20 According to the procedure in example 3 (step 1), 8-Bromo-2,3-dihydro-benzo [1,4] di oxine-6-carboxaldehyde (15.63 g, 64 mmol)) and cycolhexylamine (7.02 g, 71 mmol) gave 8-Bromo-2,3-dihydro-benzo[1,4]dioxine-6-ylmethylene)-cyclohexyl-amine (24.2 g) as a viscous oil which was used in the following step without purification. Step 4. 8-Bromo-5-ethyl-2,3-dihydro-benzo[1,4]dioxine-6-carboxaldehyde 25 According to the procedure of step 2 of Example 33, 8-Bromo-2,3-dihydro-benzo[1,4]di oxine-6-ylmethylene)-cyclohexyl-amine (23.09 g, 71 mmol) gave 8-Bromo-5-ethyl-2,3-di hydro-benzo[1,4]dioxine-6-carboxaldehyde (3.67 g, 24 %).

- 97 Step 5. 8-Bromo-5-ethyl-2,3-dihydro-benzo[1,4]dioxin-6-ol 8-Bromo-5-ethyl-2,3-dihydro-benzo [1,41 dioxine-6-carboxaldehyde (3.674 g, 13.5 mmol), using the procedure described in Example 2 (step 4), was converted to 8-Bromo-5-ethyl 2,3-dihydro-benzo[1,4]dioxin-6-ol (3.182 g, 91%) as a white solid. 5 Step 6. (8-Bromo-5-ethyl-2,3-dihydro-benzo[1,4] dioxin-6-yloxy)-acetonitrile 8-Bromo-5-ethyl-2,3-dihydro-benzo(1,4]dioxin-6-ol (3.182 g, 12.3 mmol), as described in the procedure of Step 6 of Example 21, was converted to cyanomethyl ether 8-Bromo-5 ethyl-2,3-dihydro-benzo( 1,4]dioxin-6-yloxy)-acetonitrile (2.30 g, 63%). Step 7. 5- (8-Bromo-5-ethyl-2,3-dihydro-benzo [1.4] dioxin-6-yloxy)-pyrimidine-2,4 10 diamine 8-Bromo-5-ethyl-2,3-dihydro-benzo[1,4]dioxin-6-yloxy)-acetonitrile (2.30 g, 8.7 mmol), using the procedure of steps 6 and 7 of Example 2, was converted to 5-(8-Bromo-5-ethyl 2,3-dihydro-benzo[1.4]dioxin-6-yloxy)-pyrimidine-2,4-diamine (0.951 g, 32%) as yellow solid; mp = 291-293*C; [MH]" = 368. 15 Example 37: 5-(7-Iodo-5-isopropyl-2,3-dihydro-benzo[1,4]dioxin-6-yloxy)-pyrimidine 2,4-diamine The synthetic procedure used in this Example is outlined in Scheme P. OyCHO Step 1 O OH Step 2 OMe Step 3 O mCPBA O CH 3 O 1. B(CH 3

)

3 2.

H

2 0

B(OH)

2 OMe Step 4 O OMe Step 5 O OMe Step 6 0 0 H 2 0 BBra, H 2 0 Br

NH

2 6 0 H Step 7 0OINzo Step 8 C0 N 20 0NC"-0,Tos O N 0N 2 - 98 NH 2

NH

2

NH

2 0 N4 (K 0KN + (K 0 O NH 2 0I N NH N NH2 02&22 SCHEMEP Step 1. 2,3-Dihydro-benzo[1,4]dioxin-6-ol To a solution of 2,3-dihydro-benzo1,4]dioxin-6-carboxaldehyde (30.0 g, 183 mmol) in 5 500 ml CH 2

CI

2 was added mCPBA (37.85 g, 219 mmol). The suspension was heated to 50*C. After 16 h saturated NaHCO 3 was added and the mixture was extracted with CH 2

C

2 . The combined organics were concentrated in vacuo and taken up in MeOH and 200 ml 4 M NaOH was added. After 2 h the mixture was acidified with 4M HCI and extracted with ethyl acetate. The combined organics were washed with saturated NaHCO3, washed with 10 brine, concentrated in vacuo, and taken up in CH 2 C1 2 . The solution was filtered to remove the precipitate. The resulting solution was stirred with saturated NaHCO 3 for 1 h, separa ted, dried over MgSO4, filtered and concentrated in vacuo to give 2,3-dihydro-benzo(1,41 dioxin-6-ol (26.92 g, 94%). Step 2. 6-Methoxy-2,3-dihydro-benzo[1,4]dioxine 15 To a mixture of K 2

CO

3 (47.54 g, 344 mmol) and Bu 4 NI (1.256 g, 3.4 mmol) in DMF was added 2,3-dihydro-benzo[1,4]dioxin-6-ol (26.2 g, 172 mmol) followed by iodomethane (16.1 ml, 258 mmol). After 16 hours the mixture was filtered. The solution was mixed with H 2 0 and extracted with ethyl acetate. The combined organics were washed with brine, dried over MgSO4, filtered and concentrated in vacuo. Purification via flash chro 20 matography (95:5 hexane/ethyl acetate) afforded methyl 6-methoxy-2,3-dihydro-benzo [1,41]dioxine (24.23 g, 85%) as a clear oil. Step 3. 6-Methoxy-2,3-dihydro-benzo [1,4] dioxin-5-yl-boronic acid To a solution of methyl ether X (10.0 g, 60 mmol) in 50 ml THF at -78*C was added n butyllithium (36 ml, 90 mmol, 2.5 M in hexanes) was added drop-wise. After 1 h the solu 25 tion was warmed to RT. After 1 h the solution was cooled to -78"C and trimethyl borate (13.6 ml, 120 mmol) was added. The solution was warmed to RT. After 16 h the mixture was quenched by the addition of water and the resulting mixture was acidified with AcOH and extracted with ethyl acetate. The combined organics were washed with saturated NaHCO 3 , dried with MgSO 4 , filtered and concentrated in vacuo. The resulting oil was 30 azeotroped with toluene to afford 6-methoxy-2,3-dihydro-benzo[1,4]dioxin-5-yl-boronic acid (13.72 g, 98%) as an oil.

- 99 Step 4. 5-Isopropenyl-6-methoxy-2,3-dihydro-benzo [1,4] dioxine To a solution of 2-bromopropene (5.4 ml, 59 mmol) in 200 mL DME was added Pd(Ph 3

P)

4 (3.116, 2.8 mmol). After 30 min 6-methoxy-2,3-dihydro-benzo [1,4] dioxin-5-yl-boronic acid (13.320 g, 58.6 mmol) and K 2 C0 3 (8.099 g, 58.6 mmol) was added. The mixture was 5 warmed to reflux. After 16 hours the mixture was cooled, filtered through a pad of celite and concentrated in vacuo. The residue was dissolved in H20 and extracted with ethyl acetate. The combined organics were washed with saturated NaHCO3, dried over MgSO4, filtered and concentrated in vacuo. Purification via flash chromatography afforded iso prene 5-isopropenyl-6-methoxy-2,3-dihydro-benzo[1,4]dioxine (5.542 g, as an inseparable 10 mixture of product/sm 1:1) as an oil. Step 5. 5-Isopropyl-6-methoxy-2,3-dihydro-benzo[1,4]dioxine To a solution of 5-isopropenyl-6-methoxy-2,3-dihydro-benzo(1,4]dioxine (5.00 g, x mmol) in 80 ml MeOH was added 10% Pd/C (0.18 g). The mixture was placed under 50 psi of H 2 . After 16 hours the mixture was filtered through a pad of celite. The solution was 15 concentrated in vacuo. Purification via flash chromatography (97:3 hexane/ethyl acetate) afforded isopropyl 5-isopropyl-6-methoxy-2,3-dihydro-benzo[1,4]dioxine (2.458 g, 21% from boronic acid) as a clear oil. Step 6. 5-Isopropyl- 6 hydroxy-2,3-dihydro-benzo[1,4]dioxine To a solution of 5-isopropyl-6-methoxy-2,3-dihydro-benzo[1,4]dioxine (1.011 g, 4.9 20 mmol) in 15 ml CH 2 Cl 2 at -78"C was added BBr 3 (7.3 ml, 7.3 mmol). The solution was allowed to warm to RT. After 16 hours the solution was cooled to -78"C, quenched with H20, warmed to RT and extracted with CH 2 Cl 2 . The combined organics were washed with brine, dried over MgSO4, filtered and concentrated in vacuo. Purification via flash chro matography (7:3 hexane/ethyl acetate) afforded 5-isopropyl- 6 hydroxy-2,3-dihydro-benzo 25 [1,4] dioxine (0.622 g, 63%) as a pale yellow oil. Step 7. 5-Isopropyl-2,3-dihydro-benzo [1,4] dioxin -6-yloxy)acetonitrile 5-Isopropyl- 6 hydroxy-2,3-dihydro-benzo[1,4]dioxine (0.622 g, 3.2 mmol) was converted, as described in Example 2 (step 5), to 5-Isopropyl-2,3-dihydro-benzo(1,4]dioxin-6-yloxy) acetonitrile (0.544 g, 72%) as a clear oil. 30 Step 8. 5-(5-Isopropyl-2,3-dihydro-benzo[1,4]dioxin-6-yloxy)-pyrimidine-2,4-diamine 5-Isopropyl-2,3-dihydro-benzo[1,4] dioxin -6-yloxy)acetonitrile (0.544 g, 2.3 mmol) was converted, as described in step 6 of Example 21, to 5-(5-isopropyl-2,3-dihydro-benzo[1, 4

]

dioxin-6-yloxy)-pyrimidine-2,4-diamine (0.560 g, 86%) as a yellow foam.

- 100 Step 9. 5-(7-lodo-5-isopropyl-2,3-dihydro-benzo[1,4]dioxin-6-yloxy)-pyrimidine-2,4 diamine and 5-(7,8-Diiodo-5-isopropyl-2,3-dihydro-benzo[1,4]dioxin-6-yloxy) pyrimidine-2,4-diamine To a solution of 5-(5-isopropyl-2,3-dihydro-benzo[1,4]dioxin-6-yloxy)-pyrimidine-2,4-di 5 amine (250 mg, 0.83 mmol) in acetic acid (2 ml) was added ICI (0.670 g, 4.13 mmol) in 3 ml AcOH and 2 ml H 2 0. After 20 h the reaction was neutralized with Na 2

CO

3 and extrac ted with CH 2 C1 2 . The combined organics were washed with washed 10% NaHSO 3 , washed with brine, dried over Na 2

SO

4 , filtered and concentrated in vacuo. Purification via flash chromatography (97:3 CH 2 Cl 2 /MeOH) afforded 5-(7,8-Diiodo-5-isopropyl-2,3-dihydro 10 benzo[1,4]dioxin-6-yloxy)-pyrimidine-2,4-diamine (0.049 g, 10%) as yellow solid ([MH]* = 555) and 5-(7-Iodo-5-isopropyl-2,3-dihydro-benzo[1,4]dioxin-6-yloxy)-pyrimidine-2,4 diamine (0.050 g, 14%) as a foam. [MH]*= 429. Example 38: 2-[2-(2,4-Diamino-pyrimidin-5-yloxy)-4-iodo-5-methoxy-phenyl] propan-1-ol 15 The synthetic procedure used in this Example is outlined in Scheme Q. 0 O OH Step 1O Step 2 0 0 Step 3 0 c'^'o'' O [MePph3]0r O 1, TiCINaBH 4 NaN(Si~e) 2 2, HC OH OH OH OH Step 4 CN Step 5, O N OH TsOCH2CN 0 IN SCHEME Q Step 1. 1-(2-Hydroxy-4-iodo-5-methoxy-phenyl) -ethanone 20 To suspension of sodium hydride (0.044 g , 1.1 mmol , 60% in mineral oil) in 0.5 ml DMF was added sodium 5-iodo-2-acetyl,4-methoxyphenol (0.292 g, 1 mmol, prepared as described in Example 35) as a solution in 1.5 ml DMF. After 10 minutes chloromethoxy methane (0.079 g, 1.0 mmol ) was added. After 30 minutes the mixture was extracted with

CH

2 C1 2 . The combined organics were washed with brine, dried over Na 2

SO

4 , filtered and 25 concentrated in vacuo. Purification via flash chromatography (88:12= hexane/ethyl - 101 acetate) afforded 1-(2-hydroxy-4-iodo-5-methoxy-phenyl)-ethanone (0.314 g, 85%) as yellow solid; [MH]* = 337. Step 2. 1-Iodo-4-iosprenyl-2-methoxy-5-methoxymethoxy-benzene To a suspension of methyl triphenylphosphonium bromide (0.457 g, 1.3 mmol) in 8 ml 5 THF was added sodium hexamethyldisilazide (1.3 ml, 1.29 mmol, 1.0 M in THF). After 1.5 h 1-(2-hydroxy-4-iodo-5-methoxy-phenyl)-ethanone (0.288 g, 0.9 mmol) as a solution in 8 ml THF was added drop-wise. After 20 h the mixture was filtered though a pad of celite and extracted with CH 2

C

2 . The combine organics were washed with brine, dried over Na 2 SO4 and concentrated in vacuo. Purification via flash chromatography (95:5 10 hexane/ethyl acetate) afforded 1-iodo-4-iosprenyl-2-methoxy-5-methoxymethoxy-benzene (0.224 g, 78%) as colorless liquid; [MH] t = 335. Step 3. 2-(2-Hydroxy-1-methyl-ethyl)-5-iodo-4-methoxy-phenol To a mixture of NaBH 4 (0.051 g, 1.3 mmol) in 4 ml DME was added TiCl 4 (0.67 ml, 0.67 mmol, 1.0 M in CH 2

CI

2 ). After I h 2-methyl-1-iodo-4-isoprenyl-2-methoxy-5-methoxy 15 methoxy-benzene (0.224 g, 0.7 mmol ) in 4 ml DME was added. After 20 h the mixture was quenched with H 2 0 and extracted with ethyl acetate. The combined organics were washed with brine, dried over Na 2

SO

4 , filtered and concentrated in vacuo to give an oil. To a solution of this oil in 3 ml isopropanol was added 3 ml 6M HCL. After 3 h the mixture was neutralized with saturated NaHCO 3 and extracted with ethyl acetate. The combined 20 organics were washed with brine, dried over Na 2

SO

4 , filtered and concentrated in vacuo to give an oil. Purification via preparative TLC (70:30 hexane/ethyl acetate) afforded 2-(2 hydroxy-1-methyl-ethyl)-5-iodo-4-methoxy-phenol (0.080 g, 30%) as a clear oil; {MH J'= 309. Step 4. [2-(2-Hydroxy-methyl-ethyl)-5-iodo-4-methoxy-phenoxyl-acetonitrile 25 2-(2-Hydroxy-1-methyl-ethyl)-5-iodo-4-methoxy-phenol (0.080 g, 0.3 mmol) was converted, as described in step 6 of Example 21, to {2-(2-hydroxy-methyl-ethyl)-5-iodo-4 methoxy-phenoxy]-acetonitrile (0.076 g, 84%) as white solid; [MH]* = 348. Step 5. 2- [2-(2,4-Diaminopyrimidin-5-yloxy)-4-iodo-5-methoxy-phenylI -propan- 1 -ol [2-(2-hydroxy-methyl-ethyl)-5-iodo-4-methoxy-phenoxy] -acetonitrile (0.488 g, 1.4 30 mmol), using the procedure of step 7 of Example 21, was converted to 2-[2-(2,4-diamino pyrimidin-5-yloxy)-4-iodo-5-methoxy-phenyll-propan-1-ol (0.459 g, 79%) as a white solid; mp (HCl salt) = 290.1-292.2*C; [MH]* = 417.

-102 Example 39: 5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-N-methyl ,- benzenemethylsulfonamide Step 1. 5-( 2

,

4 -Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-benzenesulfonyl chloride NH2 N CISOaH N. O NN O- N NH2 O N NH 2 O=S-Cl 5 A mixture of pyrimidine (0.400 g, 1.5 mmol) in 2 ml chlorosulfonic acid was allowed to stir 20 min. The mixture was poured over ice. The precipitate was filtered, washed by cold H 2 0 and dried under vacuum to afford 5-(2,4-diamino-pyrimidin-5-yloxy)-4-isopropyl-2 methoxy-benzenesulfonyl chloride (0.515 g, 95%) as a white solid; [MHI*= 373. 10 Step 2. 5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-N-methyl benzenemethylsulfonamide

NH

2

NH

2 N MeNH 2 N 0 N NH 2 0 N NH 2 0~S-CI =s=0 =-Cl O HN To 10 ml methyl amine -78*C in a screw-capped tube was added 5-(2,4-diamino-pyrimi din-5-yloxy)-4-isopropyl-2-methoxy-benzenesulfonyl chloride (0.300 g, 0.8 mmol). The 15 mixture was allowed to warm to RT. After 20 hours the mixture was evaporated, washed with H 2 0, and dried under vacuum to afford 5-(2,4-diamino-pyrimidin-5-yloxy)- 4 idopropyl-2-methoxy-N-methyl-benzenemethylsulfonamide (0.170 g, 57%) as a white solid; mp (HCI salt) = 252.3-252.9 0 C; [MH]* = 367. Similarly prepared, replacing methylamine with ethylamine, was 5-(2,4-Diamino 20 pyrimidin-5-yloxy)-N-ethyl-4-isopropyl-2-methoxy-benzenesulsonamide (0.186 g, 61%) as a white solid; mp (HCI salt)= 260-265*C; [MH] = 382. Example 40: 5-[2-Isopropyl-4-methoxy-5-(1-methyl-1H-imidazol-2-yl)-phenoxy]-3,4 dihydro-pyrimidine-2,4-diamine -103

NH

2

NH

2 0 _____ 0 NH NHH SCHN 0NNNH 2 ON

NH

2

N

7 NH N"N To a solution of 5-[5-(1H-Imidazol-2-yl)-2-isopropyl-4-methoxy-phenoxy]-3,4-dihydro pyrimidine-2,4-diamine (0.044g, 0.129 mmoles) and Iodomethane (9 ul, 0.145 mmoles) in acetone (5 ml) was added KOH (0.055g, 0.98 mmoles), the mixture was heated at 30*C for 5 20 min., the mixture was filtered through celite, washed with CH 2

C

2 , the combined organic solution was concentrated in vacuo. The residue was purified on two silica pre parative TLC plates, eluted with 5% MeOH/CH 2

CI

2

/NH

4 OH four times to give 5-{2-Iso propyl-4-methoxy-5-(1-methyl-1H-imidazol-2-yl)-phenoxy]-3,4-dihydro-pyrimidine-2, 4 diamine (0.024g, 52%). Mass Spec: M+H: 355. 10 Example 41: 5-(2,4-Diamino-pyrimidin-5-yloxy)4-isopropyl-2-methoxy-N,N-dimethyl benzamide

NH

2

NH

2 NH 0 0N 0 HO 0 To a suspension of 5-( 2 ,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-benzoic acid (180 mg, 0.57 mmol, from Example 17) in anhydrous dichloromethane (5.6 mL) was 15 added TFA (0.08 mL, 1.14 mmol) and then thionyl chloride (0.36 mL, 5.65 mmol). After 1 hour the reaction was concentrated. To the residue was added anhydrous dichloro methane (4.5 mL) and dimethylamine (2.84 mL of a 2M solution in THF, 5.65 mmol). After 2 hours stirring at RT, the reaction was filtered and concentrated. Purification by silica gel column chromatography eluting with 95/5/0.1 to 93/7/0.1 dichloromethane/ 20 methanol/ ammonium hydroxide yielded 5-(2,4-diamino-pyrimidin-5-yloxy)4-isopropyl 2-methoxy-N,N-dimethyl-benzamide (40 mg, 20%) as pale yellow solid, MS (M+H) = 346.

- 104 Similarly prepared using methylamine instead of dimethylamine, 5-(2,4-diamino pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-N-methyl-benzamide (23 mg, 15%) was prepared as pale yellow solid, MS (M+H) = 332. Example 42: 4-(2,4-Diamino-pyrimidin-5-yloxy)-2-iodo-5-isopropyl-pheno

NH

2 NH 2 O N O N O N NH 2 HO N NH 2 5 To a cold suspension of 1( O.21g, 0.52mmole) in dichloromethane (15ml) at 0*C was added BBr 3 (0.26g, 1.05mmole). The reaction mixture was stirred at RT for 16 hrs., quenched with water and basified with sat. NaHCO 3 . The insoluble solid was collected by filtration. The filtrate was washed with water, dried over Na 2

SO

4 , filtered and concentrated in vacuo. 10 The combined residue and the solid was flash chromatographed on silica gel (3 to 5% methanol in dichloromethane with 0.1% NH 4 0H) gave desired product (0.174g, 86%) M+1 387 Example 43: 5-(5-Iodo-2-isopropyl-4-prop-2-ynyloxy-phenoxy)-pyrimidine-2,4 diamine

NH

2

NH

2 0 N 0 N HO N; NH2 O N<NH2 15 To 4-(2,4-Diamino-pyrimidin-5-yloxy)-2-iodo-5-isopropyl-phenol (200 mg, 0.43 mmol) dissolved in anhydrous N,N-dimethylformamide (2 mL) was added anhydrous potassium carbonate (414 mg, 3.00 mmol) and propargyl chloride (0.03 mL, 0.43 mmol). After stirring at RT overnight, the reaction was extracted with dichloromethane, water and brine. 20 The dichloromethane layer was dried using anhydrous magnesium sulfate, concentrated, and purified by silica gel column chromatography eluting with 95/ 5/ 0.1 dichloromethane/ methanol/ ammonium hydroxide to yield 5-(5-iodo-2-isopropyl-4-prop-2-ynyloxy phenoxy)-pyrimidine-2,4-diamine as white solid (131 mg, 71%), MS (M+H) = 425.

- 105 Example 44: N-[2-Acetylamino-5-( 2 -isopropyl-4-methoxy-5-methyl-benzyl)-pyrimidin 4-yl]-acetamide 0

NH

2 HN N N O -O N; NH O N N N H2 H To 5-(2-Isopropyl-4-methoxy-5-methyl-benzyl)-pyrimidine-2,4-diamine (30 mg, 0.10 5 mmol) dissolved in anhydrous pyridine (1 mL) was added acetyl chloride (0.04 mL, 0.44 mmol). After stirring 30 minutes at RT, the reaction was concentrated. The residue was dissolved in dichloromethane and washed with water. Purification of the concentrated dichloromethane layer using preparatory TLC plates (95/ 5 dichloromethane/ methanol) yielded N-[2-acetylamino- 5

-(

2 -isopropyl-4-methoxy-5-methyl-benzyl)-pyrimidin-4-yl] 10 acetamide (7 mg, 18%), MS (M+H) = 371. Example 45: 5-( 2 -Isopropyl-5-isoxazol-5-yl-4-methoxy-phenoxy)-pyrimidine-2,4 diamine The synthetic procedure used in this Example is outlined in Scheme Q.

NH

2 N O Step 1 0 N N Step 2 0 0 N NH 2 N-( 0 N N NH 4 0H I 0- / O -N -N NH

NH

2 N 2 Step 3 1 N HONH2 O kNH 0 0 -N 15 - 106 SCHEME Q Step 1. N'-[5-[5-(3-Dimethylamino-acryloyl)-2-isopropyl-4-methoxy-phenoxy]-4 (dimethylamino-methyleneamino)-pyrimidin-2-yl] -N,N-dimethyl-formamidine To 1-[5-(2,4-diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-ethanone (100 5 mg, 0.32 mmol, from Example 16) dissolved in anhydrous NN-dimethylformamide (0.6 mL) was added NN-dimethylformamide dimethyl acetal (0.17 mL, 1.26 mmol) and the reaction was heated at 114"C overnight. Concentration of the reaction mixture yielded N' [5- [5-(3-Dimethylamino-acryloyl)-2-isopropyl-4-methoxy-phenoxy]-4-(dinethylamino methyleneamino)-pyrimidin-2-yl]-N,N-dimethyl-formamidine. 10 Step 2. 1-[5-(2,4-Diamino-pyrimfidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-3-di methylamino-propenone The N'-[5-[5-(3-Dimethylamino-acryloyl)-2-isopropyl-4-methoxy-phenoxy)-4-(dimethyl amino-methyleneamino)-pyrimidin-2-yl]-N,N-dimethyl-formamidine from step 1 was dissolved in methanol (1 mL) and ammonium hydroxide (1 mL). After stirring 5 days at 15 RT, the reaction was concentrated and purified by preparatory TLC plates (92/ 8/ 0.5 dichloromethane/ methanol/ ammonium hydroxide) to yield 1-[5-(2,4-Diamino pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-3-dimethylamino-propenone (34 mg, 29%) as white solid. Step 3. 5-(2-Isopropyl-5-isoxazol-5-yl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine 20 To 1-[5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-3-dimethyl amino-propenone (30 mg, 0.08 mmol) dissolved in a mixture of methanol (1.5 mL) and water (0.4 mL) was added hydroxylamine hydrochloride (14 mg, 0.20 mmol) and the reac tion was refluxed for 1 hour. Purification by preparatory TLC plates (92/ 8/ 0.5 dichloro methane/ methanol/ ammonium hydroxide) yielded 5-(2-isopropyl-5-isoxazol-5-yl- 4 25 methoxy-phenoxy)-pyrimidine-2,4-diamine (8 mg, 29%) as white solid, MS (M+H) = 342. Example 46: 5-(2-Isopropyl-4-methoxy-5-thiazol-5-yl-phenoxy)-pyrimidine-2,4 diamine

NH

2 NH 2 0 N 0 N 0 NH 2 0 N NH 2

NS

- 107 To 5-(5-Iodo-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine (600 mg, 1.5 mmol, fromExample 14, Step 1) dissolved in N,N-dimethylacetamide (4.8 mL) was added potassium acetate (221 mg, 2.24 mmol), thiazole (0.53 mL, 7.5 mmol) and tetrakis(tri phenylphosphine)palladium(O) (70 mg, 0.06 mmol). After heating at 115*C overnight. 5 The cooled reaction was extracted with dichloromethane (100 mL) and water (2 x 100 mL). The dichloromethane layer was dried using anhydrous sodium sulfate, concentrated and purified by silica gel column chromatography eluting with 95/ 5/ 0.1 dichloromethane/ methanol/ ammonium hydroxide to yield 5-(2-isopropyl-4-methoxy-5-thiazol-5-yl-phen oxy)-pyrimidine-2,4-diamine (49 mg, 9%) as pale yellow solid, MS (M+H) = 358. 10 Example 47: 5-(2-Isopropyl-3-methoxy-phenoxy)-pyrimidine-2,4-diamine The synthetic procedure used in this Example is outlined in Scheme R. OH O 0 OH Step 1 O OH Step 2 CH3Mg Pd/C Step 3

NH

2 0 N OH -+ N N

NH

2 SCHEME R 15 Step 1. 2-(1-Hydroxy-1-methyl-ethyl)-3-methoxy-phenol To a solution of methyl magnesium bromide (24 mL of a 3M solution in diethyl ether, 72.2 mmol) in anhydrous THF (20 mL) at 0"C was added a solution of 2'-hydroxy-6'-methoxy acetophenone (4 g, 24.1 mmol) in anhydrous THF (40 mL), maintaining the temperature below 11"C during the addition. After stirring for 1.5 hours at RT, a solution of 10% am 20 monium chloride (30 mL) was added slowly maintaining the temperature below 22"C with the use of an ice bath. Water (300 mL) was slowly added and the reaction was extracted twice with ethyl acetate. The combined ethyl acetate layers were washed with water , brine, dried using anhydrous sodium sulfate and concentrated to give 2-(1-Hydroxy-1-methyl ethyl)-3-methoxy-phenol (4.52 g) as pale yellow solid. 25 Step 2. 2-Isopropyl-3-methoxy-phenol To a solution of 1 (material from above Step 1) dissolved in acetic acid (50 mL) was added 10% palladium on charcoal (500 mg), water (6 mL), and ammonium formate (7.82 g, 124 -108 mmol). After refluxing for 1 hour, the reaction was cooled and filtered through celite. The celite pad was washed with ethyl acetate (500 mL). Water (300 mL) was added to the filt rate, and the mixture was basified (pH = 8) using solid sodium bicarbonate. The ethyl acetate layer was collected and washed with water, brine, dried using anhydrous sodium 5 sulfate and concentrated to yield 2-Isopropyl-3-methoxy-phenol (3.68 g, 92%) as pale yellow solid. Step 3. Using the 2-Isopropyl-3-methoxy-phenol of step 3 above, and following the procedure of steps 5-7 of Example 2, 5-(2-isopropyl-3-metoxy-phenoxy)-pyrimidine-2,4-diamine was 10 prepared. MS (M+H) = 275. Similarly prepared was 5-(2-Isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine. MS (M+H) = 275. Example 48: 5-(5-Ethanesulfonyl-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4 diamine

NH

2

NH

2 0 0 O. N O N ON NH 2 ON

NH

2 15 To a solution of sodium sulfite (541 mg, 4.29 mmol) in water (20 mL) was added 5-(2,4 Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-benzenesulfonyl chloride (400mg, 1.07 mmol) and the reaction was heated at 80*C for 1 hour. Sodium bicarbonate (361 mg, 4.29 mmol-dissolved in 5 mL water), dioxane (20 mL), and ethyl iodide (0.10 mL, 1.29 20 mmol) were added and the reaction was heated at 80*C for 2 hours. The reaction was con centrated, extracted with dichoromethane (150 mL) and water (20 mL). The dichloro methane layer was dried using anhydrous sodium sulfate, concentrated, and purified by silica gel column chromatography eluting with 95/ 5/ 0.1 dichloromethanel methanol/ ammonium hydroxide to yield 5-(5-ethanesulfonyl-2-isopropyl-4-methoxy-phenoxy) 25 pyrimidine-2,4-diamine (77 mg, 20%) as white solid, MS (M+H) = 367. Example 49: 5-(2-Isopropyl-4-methoxy-5-trifluoromethyl-phenoxy)-pyrimidine-2,4 diamine The synthetic procedure used in this Example is outlined in Scheme S.

- 109 T s Ts step 1 Ts step 2 O OF F F N step 3 OH step 4 0 ] N N F FF F FF SCHEME S Step 1. 1-Iodo-4-isopropyl-2-methoxy-5-(toluene-4-sulfonyl)-benzene 5 To a solution of 2-Isopropyl-4-methoxy-1-(toluene-4-sulfonyl)-benzene (10 g, 31.25 mmole) in HOAc (Omil) was added a solution of ICI (9.6g, 59.26mmole) in HOAc (10 ml) and H 2 0 (5 ml). The reaction mixture was stirred at RT for 16 hrs and basified by satu rated NaHCO3 solution. The aqueous solution was extracted into EtOAc which was washed with water, brine, dried over Na2SO4, filtered and concentrated in vacuo to give 1 10 Iodo-4-isopropyl-2-methoxy-5-(toluene-4-sulfonyl)-benzene (12.35g, 89%). Step 2. 1-Isopropyl-5-methoxy-2-(toluene-4-sulfonyl)-4-trifluoromethyl-benzene To a hot mixture of 1 -odo-4-isopropyl-2-methoxy-5-(toluene-4-sulfonyl)-benzene (0.5 g, 1.12 mmole), Cul, KF in anhydrous DMF (10 ml) at 120*C oil bath temperature, was added trifluoromethyl iodide (0.64g, 4.48mmole) in portions over 30 min. The reaction 15 mixture was heated for 4 hrs and poured into H 2 0 (100 ml). The insoluble solid, which was collected by filtration was triturated with methylene chloride, filtered and concentrated to give 1-Isopropyl-5-methoxy-2-(toluene-4-sulfonyl)-4-trifluoromethyl-benzene (0.45 g, 100%) as a solid. Step 3. 2 -Isopropyl-4-methoxy-5-trifluoromethyl-phenol 20 A solution of 1-Isopropyl-5-methoxy- 2 -(toluene-4-sulfonyl)-4-trifluoromethyl-benzene (0.40 g, 1.03 mmole) and NaOH (0.5 g, 12.5 mmole) in MeOH(5ml) and H 2 0 (5ml) was heated at 90*C for 2 hrs. The cooled reaction mixture was acidified with 3N HCl and ex tracted into methylene chloride. The combined extracts was dried with Na 2 SO4, filtered and concentrated to give desired 2 -Isopropyl-4-methoxY-5-trifluoromethyl-phenol (0.194 25 g, 81%) as an oil.

-110 Step 4. 5-(2-Isopropyl-4-methoxy-5-trifluoromethyl-phenoxy)-pyrimidine-2,4-diamine Following the procedure of Example 2 steps 5-7, 2-Isopropyl-4-methoxy-5-trifluoro methyl-phenol was converted to 5-(2-Isopropyl-4-methoxy-5-trifluoromethyl-phenoxy) pyrimidine-2,4-diamine. M+H 343 5 Example 50: 5-(2-Isopropyl-4-methoxy-5-thiazol-4-yl-phenoxy)-pyrimidine-2,4 diamine The synthetic procedure used in this Example is outlined in Scheme T. Ts step 1 Ts Step 2 Ts Step 3 Ts 0 110 0 0 0 N" Br S

NH

2 NOH O" N O O H S te p 5 | S te p 6 | Step 4 0 -- I 0 : o NANH2 0 2 10 SCHEMET Step 1. 1-[4-Isopropyl-2-methoxy-5-(toluene-4-sulfonyl)-phenyll-ethanone To a clear solution of 2-Isopropyl-4-methoxy-1-(toluene-4-sulfonyl)-benzene (5.3 g, 16.56 mmole) in DCE (50 ml) was added acetyl chloride (2.0 g, 24.84 mmole) and AlC1 3 (3.3 g, 24.84 mmole) at RT. The reaction mixture was stirred at RT for 16 hrs and quenched by 15 H 2 0 (10 ml). Ten minutes after quenching, the aqueous solution was extracted into

CH

2

C

2 . The combined extracts was washed with H 2 0, dried wover Na 2

SO

4 , filtered and concentrated. Flashed chromatography on silica gel (0 to 30% EtOAc in Hex) gave 1-{4 Isopropyl-2-methoxy-5-(toluene-4-sulfonyl)-phenyl]-ethanone (4.7g, 79%) as white solid. Step 2. 2-Bromo-1-[4-isopropyl-2-methoxy-5-(toluene-4-sulfonyl)-phenyl]-ethanone 20 To a hot mixture of CuBr 2 (0.25 g, 1.10 mmole) in EtOAc (1 ml) was added a solution of 1-[4-Isopropyl-2-methoxy-5-(toluene-4-sulfonyl)-phenyll-ethanone (0.2 g, 0.55 mmole) in CH 3 Cl (1 ml). The reaction mixture was refluxed for 16 hrs, filtered, and concentrated to give 2-Bromo-1-{4-isopropyl-2-methoxy-5-(toluene-4-sulfonyl)-phenyl)-ethanone (0.23g, 95%) as an oil.

- 111 Step 3. 4-[4-Isopropyl-2-methoxy-5-(toluene-4-sulfonyl)-phenyl)-thiazole To a solution of 2-Bromo-1-[4-isopropyl-2-methoxy-5-(toluene-4-sulfonyl)-phenyll ethanone (0.23 g, 0.51 mole) in anhydrous dioxane (5 ml) was added Na 2

CO

3 (1.1 g, 10.12 mmole) and thioamide (5 ml, 0.31g, 5.06 mmole). The reaction mixture was re 5 fluxed for 3 hrs and partitioned between H 2 0 and methylene chloride. The combined organic extracts was dried over Na2SO4, filtered and concentrated. Flash chromatography on silica(30% EtOAc in Hex) gave 4-{4-Isopropyl-2-methoxy-5-(toluene-4-sulfonyl) phenyl]-thiazole (0.19g, 95%)as oil. Step 4. 2-Isopropyl-4-methoxy-5-thiazol-4-yl-phenol 10 A mixture of 4- [ 4 -Isopropyl-2-methoxy-5-(toluene-4-sulfonyl)-phenyl] -thiazole (1.0 g, 2.27 mmole) and K 2

CO

3 (1.6 g, 11.34 mmole) in anhydrous MeOH (10 ml) was refluxed for 8 hrs. Solvent was removed in vacuo and the residue was partitioned between methyl ene chloride and water. The combined organic extract was dried over Na 2

SO

4 , filtered, and concentrated to give 2-Isopropyl-4-methoxy-5-thiazol-4-yl-phenol. 15 Step 5. (2-Isopropyl-4-methoxy-5-thiazol-4-yl-phenoxy)-acetonitrile The crude 2-Isopropyl-4-methoxy-5-thiazol-4-yl-phenol from step 4 and bromoaceto nitrile (0.33 g, 2.72 mmole) together with K 2 C0 3 (0.94 g, 6.81 mmole) in anhydrous aceto nitrile (30 ml) was heated at 60*C for 3 hrs. The reaction mixture was partitioned between EtOAc and water. The combined organic extract was dried over Na 2

SO

4 , filtered and con 20 centrated. Flash chromatography on silica (10 to 20%% EtOAc in Hexanes) gave (2-Iso propyl-4-methoxy-5-thiazol-4-yl-phenoxy)-acetonitrile (0.47 g, 72%) as an oil. Step 6. 5-(2-Isopropyl-4-methoxy-5-thiazol-4-yl-phenoxy)-pyrimidine-2,4-diamine A mixture of ( 2 -Isopropyl-4-methoxy-5-thiazol-4-yl-phenoxy)-acetonitrile (0.27 g, 0.94 mmole) and Brederick's reagent (0.35 g, 2.01 mmole) was heated at 100 0 C for 2 hrs. Excess 25 Brederick's reagent was removed under reduced pressure. The residue was dissolved in anhydrous EtOH (10 ml) and aniline HCl (0.38 g, 2.93 mmole) was added. The reaction mixture was heated at 80*C for 18 hrs and partitioned between EtOAc and water. The combined organic extracts were dried over Na 2

SO

4 , filtered and concentrated. Guanidine carbonate (0.27 g,1.

4 9 mmole) and NMP (10 ml) were added and heated to 120*C for.10 30 hrs. The reaction mixture was poured into water and extracted into EtOAc. The combined organic extracts were dried over Na 2

SO

4 , filtered and concentrated. Flash chromatography on silica (3% MeOH in methylene chloride with 0.1%NH 4 0H) gave 5-(2-Isopropyl-4 methoxy-5-thiazol-4-yl-phenoxy)-pyrimidine-2,4-diamine (0.15g, 68%) as a solid. M+H 358.

- 112 Example 51: 5-[5-(N'-Allylidene-hydrazinomethyl)-2-isopropyl-4-methoxy-phenoxy] pyrimidine-2,4-diamine

NH

2

NH

2 0 N NH 2 , 0 N NH 2 0 NH N-N NN To a solution of 1-[5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyll 5 3-dimethylamino-propenone (0.25 g, 0.67 mmole) in EtOH (6 ml) was added hydrazine hydrate (0.076 g,1.

2 mmole). The reaction mixture was stirred at RT for 16 hrs and con centrated. Recrystallization of the crude residue in EtOH/EtOAc gave 5-[5-(N'-Allylidene hydrazinomethyl)-2-isopropyl-4-methoxy-phenoxyl-pyrimidine-2,4-diamine (0.228g, 100%). M+H 341 10 Example 52: 2-[4-(2,4-Diamino-pyrimidin-5-yloxy)-2-iodo-5-isopropyl-phenoxy] ethanol Step 1. 5-[5-Iodo-2-isopropyl-4-(2-trimethylsilanyloxy-ethoxy)-phenoxy]-pyrimidine-2,4 diamine

NH

2

NH

2 O N--0 N HO N NH 2 SiMe30,,,rO N NH 2 15 A mixture of 4

-(

2 ,4-Diamino-pyrimidin-5-yloxy)-2-iodo-5-isopropyl-phenol (0.3 g, 0.78 mmole), (2-bromoethoxy)-tert-butyl-dimethyl silane (0.28 g, 1.17 mmole), and K 2 CO3 (0.22 g, 1.56 mmole) in anhydrous DMF (5 ml) was heated at 50*C for 16 hrs. Solvent was removed in vacuo. The residue was partitioned between methylene chloride and water. The combined organic extracts was washed with water, dried over Na 2

SO

4 , filtered and concen 20 trated. Flash chromatography on silica(3%MeOH in methylene chloride with 0.1%

NH

4 0H) gave 5-[ 5 -Iodo- 2 -isopropyl-4-(2-trimethylsilanyloxy-ethoxy)-phenoxy]-pyrimi dine-2,4-diamine (0.38g, 90%) as a solid.

- 113 Step 2. 2- [4-(2,4-Diamino-pyrimidin-5-yloxy)-2-iodo-5-isopropyl-phenoxy] -ethanol

NH

2 NH 2 SiMe 0 - 1 -1 10 N NHHO N NH 2 0O, N NH 2 5-[5-Iodo-2-isopropyl-4-(2-trimethylsilanyloxy-ethoxy)-phenoxy]-pyrimidine-2,4-di amine (0.38 g, 0.69 mmole) in a solution of HOAc/THF/H 2 0 in a ratio of 3:1:1.95 ml) was 5 heated at 65*C for 16 hrs. The pH of the reaction mixture was adjusted to pH=9 and extracted into methylene chloride. The combined eatracts was dried over Na 2

SO

4 , filtered and concentrated. Flash chromatography on silica(5% MeOH in methylene chloride with 0.1% NH 4 0H) gave 2-[4-(2,4-Diamino-pyrimidin-5-yloxy)-2-iodo-5-isopropyl-phenoxy] ethanol (0.25 g, 86%) as a white solid. M+H 431 10 Example 53: 5-(4-Amino-2-ethylamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy benzamide Step 1. 5-(4-Amino-2-ethylamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy benzonitrile

NH

2

NH

2 O N - N O N N 0 N N H H N 15 To a solution of N*2*-Ethyl-5-( 5 -iodo-2-isopropyl-4-methoxy-phenoxy).-pyrimidine-2,4 diamine (1.65 g, 4.12 mmole) in anhydrous DMF (10 ml) was added CuCN, and the reac tion mixture was heated to 120"C for 3 hrs. The reaction mixture was poured into water (200 ml) and the insoluble portion was collected by filtration. The solid was triturated with 10%MeOH/methylene chloride/0.1%NH40H solution (100 ml) and filtered again. 20 The filtrate was concentrated and flash chromatographed on silica (3% MeOH in methyl ene chloride with 0.1%NH 4 0H) to give 5-(4-Amino-2-ethylamino-pyrimidin-5-yloxy)-4 isopropyl-2-methoxy-benzonitrile (0.87g, 71%) as a white solid. Step 2. 5-(4-Amino-2-ethylamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-benzamide - 114 NH 2

NH

2 0 N O N O 1 "10N N H H N 0 NH 2 To a solution of 5-(4-Amino-2-ethylamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy benzonitrile (0.3 g, 0.92 mmole) in EtOH/H 2 0 (1:1,10 ml) was added a solution of NaOH (0.37 g, 9.17 mmole) in H 2 0 (1 ml). The reaction mixture was heated at 100"C for 24 hrs 5 and neutralized with 3N HCL. Ethanol was removed in vacuo and the remaining aqueous solution was extracted into methylene chloride. The combined extract was washed with water, dried over Na 2

SO

4 , filtered and concentrated. Flash chromatography on silica gel (3 to 8% EtOAc in Hexanes) gave 5-(4-Amino-2-ethylamino-pyrimidin-5-yloxy)-4-isoprop yl-2-methoxy-benzamide (0.086g, 27%) as a white solid. M+H 346. 10 Example 54: N*2*-Ethyl-5-(2-isopropyl-5-methanesulfonyl-4-methoxy-phenoxy) pyrimidine-2,4-diamine

NH

2

NH

2 0 0 0 o N N O N N H 01S H 0 A mixture of N* 2 *-Ethyl-5-(2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine (0.30 g, 0.99 mmole) , methanesulfonic anhydride (1.0 g, 5.96 mmole) and trifluorometh 15 anesulfonic acid (0.37 g, 2.48 mmole) was heated at 70"C for two hrs. The hot reaction mixture was poured into ice water and basified with sat. NaHCO 3 solution. The aqueous solution was then extracted into methylene chloride. The combined organic extracts was washed with H 2 0, dried over Na 2

SO

4 , filtered and concentrated. Flash chromatography on silica (1%MeOH in methylene chloride with 1%NH 4 0H) gave N*2*-Ethyl-5-(2-isopropyl 20 5-methanesulfonyl-4-methoxy-phenoxy)-pyrimidine- 2

,

4 -diamine (87mg, 23%) as a solid. M+H 381. Example 55: 5-(2-Isopropyl-4-methoxy-5-oxazol-4-yl-phenoxy)-pyrimidine-2,4 diamine Step 1. 2-Bromo-1-[4-isopropyl-2-methoxy-5-(toluene-4-sulfonyl)-phenyl]-ethanone -115 Ts Ts 0 0 0 0 Br OCHO A mixture of 2-Bromo-1-[4-isopropyl-2-methoxy-5-(toluene-4-sulfonyl)-phenyl]-ethan one (0.2 g, 0.45 mole) and sodium formate (0.040 g, 0.60 mmole) in anhydrous DMF (3 ml) was stirred at RT for 16 hours. The reaction mixture was poured into H 2 0 and ex 5 tracted into EtOAc. The combined organic extract was dried over Na 2

SO

4 , filtered and concentrated to yield 2-Bromo-1-[4-isopropyl-2-methoxy-5-(toluene-4-sulfonyl)-phenyl] ethanone. Step 2. 4-[4-Isopropyl-2-methoxy-5-(toluene-4-sulfonyl)-phenyl]-oxazole Ts Ts O O O N OCHO \O 10 A solution of the crude 2-Bromo-1-[4-isopropyl-2-methoxy-5-(toluene-4-sulfonyl) phenyl}-ethanone from above and ammonium acetate (0.17 g, 2.25 mmole) in HOAc (5 ml) was heated at 100*C for 2 hrs. The reaction mixture was partitioned between methyl ene chloride and sat. NaHCO 3 solution. The combined organic extract was dried over Na 2

SO

4 , filtered and concentrated. Flash chromatography on silica (30 to 50%EtOAc in 15 Hex) gave 4-[4-Isopropyl-2-methoxy-5-(toluene-4-sulfonyl)-phenyl]-oxazole (25mg, 14%) as a white solid. Step 3. 5-(2-Isopropyl-4-methoxy-5-oxazol-4-yl-phenoxy)-pyrimidine-2,4-diamine Ts 0 NH 2 Ts. O-- 'e N O O N- NH2 NN L0 LO_ - 116 4-{4-Isopropyl-2-methoxy-5-(toluene-4-sulfonyl)-phenyl]-oxazole was converted, using the procedure of steps 4-6 of Example 49, to 5-(2-Isopropyl-4-methoxy-5-oxazol-4-yl phenoxy)-pyrimidine-2,4-diamine. M+H = 342. Example 56: 5-( 2 -Isopropyl-4-methoxy-5-thiazol-2-yl-phenoxy)-pyrimidine- 2 ,4 5 diamine Step 1. 5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-thiobenzamide

NH

2

NH

2 0 N O N 0 N NH 2 0 N NH 2 0 NH 2 S NH 2 A mixture of 5-( 2

,

4 -Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-benzamide (0.25 g, 0.79 mmole, prepared according to the procedure of Example 52) and Lawesson's 10 reagent (0.96 g, 2.37 mmole) in anhydrous THF (20 ml) was stirred at RT for 16 hrs and concentrated in vacuo. Flash chromatography on silica (5%CH 3 0H in methylene chloride with 1%NH 4 0H) gave 5-(2,4-Diamino-pyrimidin-5-yloxy)4-isopropyl-2-methoxy-thio benzamide (0.201g, 76%) as a yellow solid. Step 2.5-(2-Isopropyl-4-methoxy-5-thiazol-2-yl-phenoxy)-pyrimidine-2,4-diamine

NH

2 NH2 O NN o N NH 2 0 N NH 2 S NH 2 S N 15 To a solution of 5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-thiobenz amide (0.23 g, 0.69 mmole) in HOAc (5 ml) was added bromoactaldehyde diethylacetal (0.18 g, 0.9 mmole) and TsOH (5 mg) as a catalyst. The reaction mixture was heated at 110*C for 16 hrs and basified with sat. NaHCO 3 solution. The aqueous solution was ex 20 tracted into methylene chloride. The combined organic extract was dried over Na 2

SO

4 , filtered and concentrated. Flash chromatography on silica (5% MeOH in methylene chloride with 1%NH 4 0H) gave 5-(2-Isopropyl-4-methoxy-5-thiazol-2-yl-phenoxy) pyrimidine-2,4-diamine (0.070 g, 28%) as a yellow solid.. M+H = 358 -117 Example 57: 5-( 4 -Ethoxy-5-iodo-2-isopropyl-phenoxy)-pyrimidine-2,4-diamiine

NH

2

NH

2 0 N 0 'N HO N NH 2 O -:N NH 2 To a solution of 4-(2,4-Diamino-pyrimidin-5-yloxy)-2-iodo-5-isopropyl-phenol (0.2 g, 0.52 mmole) in anhydrous DMF (2 ml) was added EtBr (57 mg, 0.52 mmole) in portions. 5 The reaction mixture was partitioned between EtOAc and H 2 0. The organic extract was dried over Na 2

SO

4 , filtered and aconcentrated. Flash chromatography on silica (3% MeOH in methylene chloride with 1%NH 4 0H) gave 5-(4-Ethoxy-5-iodo-2-isopropyl-phenoxy) pyrimidine-2,4-diamine (0.17 g, 28%) as a yellow solid. M+H = 415. Example 58: 5-(2-Isopropyl-4-methoxy-5-[1,2,4]oxadiazol-3-yl-phenoxy)-pyrimidine 10 2,4-diamine The synthetic procedure used in this Example is outlined in Scheme U. N N Step 1 O Step 2 O NN3

NH

2 OH.HCil

(CH

3 0)aCH/ 0 N N NaHCO 3 0 N N BFaOEt 2 CN N N 0 0 N N N N N NN0 N N 0 N N O N N N0 ' N Step3 0' TFA 0 0NN N N b-/ - 118 SCHEME U The 5-( 2

,

4 -Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-benzonitrile utilized in step 1 of this Example was prepared as described in Scheme 1. Step 1: 5-( 2 ,4-Diamino-pyrimidin-5-yloxy)-N-hydroxy-4-isopropyl-2-methoxy 5 benzamidine The benzamidination carried out in this step follows the procedure reported by Meyer et al., Synthesis 6:899-905 (2003). To a stirred mixture of hydroxylamine hydrochloride (0.099 g, 1.43 mmol) and sodium hydrogen carbonate (0.119 g, 1.42 mmol) in ethanol (1.4 ml) and water (0.3 ml) was added 5-(2,4-diamino-pyrimidin-5-yloxy)-4-isopropyl-2 10 methoxy-benzonitrile (0.385 g, 1.29 mmol) and the mixture heated at reflux for 5 hours. A second portion of hydroxylamine hydrochloride (0.049 g, 0.71 mmol) and sodium hydro gen carbonate (0.060 g, 0.71 mmol) was added. After a further 2 hours the mixture was cooled, concentrated in vacuo, then diluted with water (10 ml) and extracted with ethyl acetate. The combined organic extracts were washed with brine then dried (MgSO4), 15 filtered and concentrated in vacuo to yield 5-(2,4-diamino-pyrimidin-5-yloxy)-N-hydroxy 4-isopropyl-2-methoxy-benzamidine (355 mg) as a yellow foam. This material was used directly without further purification. Step 2: N-[2-Amino-5-(2-isopropyl-4-methoxy-5-[1,2,4]oxadiazol-3-yl-phenoxy)-pyrimi din-4-yl]formamide, N-{4-amino-5-(2-isopropyl-4-methoxy-5-[1,2,4]oxadiazol- 3 20 yl-phenoxy)-pyrimidin- 2 -ylIformamide and N-[4-formylamino-5-(2-isopropyl- 4 methoxy-5-[1,2,4]oxadiazol-3-yl-phenoxy)-pyrimidin-2-yl]-formamide The formylation carried out in this step follows the procedure reported by Kitamura et al. Chem. Pharm. Bull. 49:268-277 (2001). Thus, to a suspension of 5-(2,4-diamino-pyrimi din-5-yloxy)-N-hydroxy-4-isopropyl-2-methoxy-benzamidine (0.350 g, 1.05 mmol) in tri 25 methylorthoformate (1.12 g, 10.5 mmol) at RT and under nitrogen was added boron tri fluoride diethyl etherate (1 drop) then the mixture heated at reflux for 1.5 hours. The re sultant mixture was cooled, diluted with dichloromethane (60 ml), then washed with water (20 ml), brine (20 ml) and then dried (MgSO4) filtered and concentrated in vacuo to pro vide a mixture of N-[2-amino-5-(2-isopropyl-4-methoxy-5-[1,2,4]oxadiazol-3-yl-phen 30 oxy)-pyrimidin-4-yl]formamide, N-[4-amino-5-(2-isopropyl-4-methoxy-5-[1,2,4]oxadi azol-3-yl-phenoxy)-pyrimidin-2-yl]formamide and N-[4-formylamino-5-(2-isopropyl-4 methoxy-5-[1,2,4]oxadiazol-3-yl-phenoxy)-pyrimidin-2-yl]-formamide as a yellow solid (260 mg). This material was used directly without further purification.

-119 Step 3: 5-(2-Isopropyl-4-methoxy-5-(1,2,4]oxadiazol-3-yl-phenoxy)-pyrimidine- 2

,

4 diamine A mixture of N-[2-amino-5-(2-isopropyl-4-methoxy-5-[1,2,4]oxadiazol-3-yl-phenoxy) pyrimidin-4-yl]formamide, N-[4-amino-5-(2-isopropyl-4-methoxy-5-[1,2,4)oxadiazol-3 5 yl-phenoxy)-pyrimidin-2-yl]formamide and N-I4-formylamino-5-(2-isopropyl-4-meth oxy-5- [1,2,41 oxadiazol-3-yl-phenoxy)-pyrimidin-2-yl -formamide (0.164 g) in TFA (10 mL) was heated at reflux for 24 h. The mixture was then cooled and concentrated in vacuo. The residue was purified by flash chromatography (0 - 5% methanol in dichloromethane) to yield 76 mg of 5-(2-isopropyl-4-methoxy-5-[1,2,4]oxadiazol-3-yl-phenoxy)-pyrimidine 10 2,4-diamine as its trifluoroacetic acid salt. M+H* =343; MP 135 - 138.5*C; 'H NMR (CDC 3 ) 8: 1.27 (app d, 6H, J= 7.0 Hz), 3.11 (quintet, 1H, J = 7.0 Hz), 4.04 (s, 3H), 6.02 6.24 (br. D, 2H), 6.93 (s, 1H), 7.02 (s, 1H), 7.68 (s, 1H), 8.74 (s, 1H). Example 59: 5-(6-Isopropyl-4-methyl-3,4-dihydro-2H-benzo[1,4]oxazin-7-yloxy) pyrimidine-2,4-diamine 15 The synthetic procedure used in this Example is outlined in Scheme V. c l CI OO Step2 0 OH

KNH

2 I2C 0 H o1H C U Step 4 0 Step 5 S Step 6 CH I Kk.-

BH

3 -DMS H 01 Step 7 0. Step 8 OH ~N 1. CH 3 MgBr -N N 0 02. HC02NH4 20 -120

NH

2 S tep 9 N N N PJ'r 2 SCHEME V Step 1. 2-Chloro-N-(2,4-dimethoxy-phenyl)-acetamide A mixutre of 2,4-dimethoxy aniline (30.6 g, 0.2 mol), triethylamine (27.9 mL, 0.2 mol) in 5 600 mL methylene choride was stirred at 0*C under nitrogen. Chloroacetyl chloride (16 mL, 0.2 mol) was added dropwise, and the reaction mixture was stirred for 15 minutes at 0"C, and then stirred for an additional two hours during which time the reaction mixture was allowed to warm to RT. The reaction was quenched by addition of 1N HCI, followed by saturated aqueous sodium bicarbonate. The aqueous mixture was partitioned with 10 EtOAc, and the organic phase was separated, dried (MgSO4), filtered, and evaporated under reduced pressure to give 45.58 g of crude 2-Chloro-N-(2,4-dimethoxy-phenyl) acetamide. MS (M+H) = 230. Step 2. 2-Chloro-N-(2-hydroxy-4-methoxy-phenyl)-acetamide 2-Chloro-N-(2,4-dimethoxy-phenyl)-acetamide (45.8 g, 0.2 mol) was dissolved in 1000 mL 15 methylene chloride, and the reaction mixture was stirred at 0*C under nitrogen. Alumin um trichloride (78.9 g, 0.6 mol) was added in portions over 30 minutes, and the reaction mixture was allowed to stir for 17 hours at RT. The reaction mixture was concentrated to 200 mL volume under reduced pressure, and then poured onto ice. Solids were removed by filtration, and the liquid was taken up in EtOAc, washed with brine, dried (MgSO 4 ), 20 filtered, and evaporated under reduced pressure to yield 39.67 g of 2-Chloro-N-(2 hydroxy-4-methoxy-phenyl)-acetamide. MS (M+H) = 216. Step 3. 7-Methoxy-4H-benzo(1,4]oxazin-3-one 2-Chloro-N-(2-hydroxy4-methoxy-phenyl)-acetamide (390.0 g, 0.18 mol) and powdered potassium carbonate (27.6 g, 0.2 mol) were added to 1000 mL acetone, and the reaction 25 mixture was refluxed under nitrogen for eight hours. The reaction mixture was cooled, solids were removed by filtration, and the liquid was concentrated under reduced pressure to give 32.56 g of crude 7-Methoxy-4H-benzo{ 1,4]oxazin-3-one. (M+H) = 180. Step 4. 7-Methoxy-4-methyl-4H-benzo[1,4]oxazin-3-one 7-Methoxy-4H-benzo1,4]oxazin-3-one (11.61 g, 0.065 mol) in 100 mL dry DMF was 30 stirred at 0*C under nitrogen. Sodium hydride (60%, 2.85 g, 0.0713 mol) was added in - 121 portions over 30 minutes, after which methyl iodide (4.44 mL, 0.071 mol) was added dropwise. The reaction mixture was stirred at O*C for 2.5 hours, then poured into 1400 mL water. The resulting aqueous mixture was extracted four times with 400 mL EtOAc, and the combined organic layers were washed with water, then brine, dried (MgSO4), filtered, 5 and evaporated under reduced pressure to provide 13.07 g of 7-Methoxy-4-methyl-4H benzo 1,4] oxazin-3-one. (M+H) = 194. Step 5. 7 -Methoxy-4-methyl-3,4-dihydro-2H-benzo[1,4]oxazine 7-Methoxy-4-methyl-4H-benzo[1, 4 ]oxazin-3-one (13.07 g, 0.68 mol) was added to 100 mL dry THF, and the reaction mixture was refluxed under nitrogen. Borane-dimethyl 10 sulfide (13.6 mL, 0.136 mol) was added dropwise over one hour, and the reaction mixture was allowed to reflux for two hours. The reaction mixture was cooled and then quenched by addition of 50 mL of 10% aqueous HCl. Precipitate was removed by filtration, and the liquid was concentrated under reduced pressure to give 11.17 g of 7-Methoxy-4-methyl 3,4-dihydro-2H-benzo[1,4]oxazine. (M+H) = 180. 15 Step 6. 1-(7-Methoxy-4-methyl-3,4-dihydro-2H-benzo[1,4]oxazin-6-yl)-ethanone 7-Methoxy-4-methyl-3,4-dihydro-2H-benzo[1,4]oxazine (11.17 g, 0.625 mol) in 400 mL of 1,2-dichloroethane was stirred at 0*C under nitrogen. Aluminum trichloride ( 8.3 g, 0.625 mol) was added in portions, followed by dropwise addition of acetyl chloride (4.9 mL, 0.678 mol). The reaction mixture was stirred at 0*C for 2.5 hours. Aluminum tri 20 chloride (3 g) was added, and the reaction mixture was stirred at RT for 24 hours. The reaction mixture was pourd into ice and 550 mL 3N HCI was added. The aqueous mixture was extracted with methylene chloride, and the combined organic layers were dried (MgSO 4 ), filtered, and evaporated under reduced pressure to yield 10.48 g of 1-(7 Methoxy-4-methyl-3,4-dihydro-2H-benzo[1,4]oxazin-6-yl)-ethanone. (M+H) = 222. 25 Step 7. 6-Isopropyl-7-methoxy-4-methyl-3,4-dihydro-2H-benzo[1,4]oxazine 1- (7-Methoxy-4-methyl-3,4-dihydro-2H-benzo [1,4] oxazin-6-yl) -ethanone (10.48 g, 0.473 mol) was dissolved in 25 mL dry THF and the reaction mixture was stirred at 0*C under nitrogen. Methyl magnesium bromide (22 mL of 3M solution in Et 2 0, 0.15 mol) was added dropwise, and the reaction mixture was stirred at 0*C for two hours. The reaction 30 was quenched by dropwise addition of 50 mL 10% aqueous ammonium chloride, followed by water. The aqueous mixture was extracted with EtOAc, and the combined organic layers were dried (MgSO4), filtered, and evaporated under reduced pressure. The residue was taken up in 95 mL acetic acid, and the reaction mixture was stirred at RT under nitrogen. Ammonium formate (14.92 g) and 10% Palladium on activated carbon (1.0 g) 35 were added, and the reaction mixture was heated to 120*C for three hours. The reaction - 122 mixture was cooled, solids were removed by filtration, and the filtrate was diluted with water, and made neutral by addition of solid sodium bicarbonate. The resulting aqueous solution was extracted with EtOAc, and the combined organic layers were dried (MgSO 4 ), filtered, and evaporated under reduced pressure to yield 9.97 g of 6-Isopropyl-7-methoxy 5 4-methyl-3,4-dihydro-2H-benzo( 1,4]oxazine. Step 8. 5-(6-Isopropyl-4-methyl-3,4-dihydro-2H-benzo[1,4]oxazin-7-yloxy)-pyrimidine 2,4-diamine 6-Isopropyl-7-methoxy-4-methyl-3,4-dihydro-2H-benzo[1,4]oxazine (2.21 g, 0.01 mol) was dissolved in 20 mL methylene chloride, and the reaction mixture was cooled to -65*C. 10 Boron tribromide ( 12 mL of IM solution in methylene chloride, 0.012 mol) was added dropwise over 15 minutes, and the reaction mixture was stirred for 5.5 hours, during which time the reaction mixture was allowed to warm to 0"C. The reaction mixture was then stirred for 24 hours at RT. The reaction mixture was cooled to 0*C, and methanol was slowly added until exotherm stopped. The reaction mixture was partitioned between water 15 and methylene chloride, and the organic phase was dried (MgSO 4 ), filtered, and evaporated under reduced pressure to yield 1.38 g of 5-(6-Isopropyl-4-methyl-3,4-dihydro-2H benzo[1,4]oxazin-7-yloxy)-pyrimidine-2,4-diamine. (M+H)= 208. Step 9. 5-(6-Isopropyl-4-methyl-3,4-dihydro-2H-benzo[1,4]oxazin-7-yloxy)-pyrimidine 2,4-diamine 20 5-(6-Isopropyl-4-methyl-3,4-dihydro-2H-benzo[1,4]oxazin-7-yloxy)-pyrimidine-2,4-di amine was converted, using the procedure of steps 4-6 of Example 49, to 5-(6-Isopropyl-4 methyl-3,4-dihydro-2H-benzo[1,4]oxazin-7-yloxy)-pyrimidine-2,4-diamine. (M+H) = 316. Mp = 167.3-170.1"C. Example 60: 5-(5-Furan-2-yl-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine

NH

2

NH

2 0 N O N 0 N NH 2 0B(OH O N NH 2 0 25 5-(5-odo-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine (400 mg, 1 mmol), furan 2-boronic acid (285 mg, 1.5 mmol) and Pd(Ph 3

)

2 Cl 2 (50 mg) were taken up in 13 mL of degassed dioxane in a screw cap pressure flask. Sodium bicarbonate (2 mL of 2M - 123 aqueous solution) was added, and the reaction mixture was heated to 105*C for 40 hours. The reaction mixture was cooled and partitioned between water and ethyl acetate. The organic phase was separated, dried (MgSO 4 ), filtered, and evaporated under reduced pres sure. The residue was purified by flash chromatography (3% to 5% MeOH in methylene 5 chloride with 1% ammonium hydroxide) to yield 53 mg of 5-(5-Furan-2-yl-2-isopropyl- 4 methoxy-phenoxy)-pyrimidine-2,4-diamine. (M+H) = 339. Mp = 253.7 - 254.6"C. Example 61: 5-(5-Furan-2-yl-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine

NH

2

NH

2 o N NH 2 1> 0 N NH 2 N I -S s N 5-(5-odo-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine (400 mg, 1.0 mmol), 10 potassium acetate ((147 mg), Pd(Ph 3

)

2 Cl 2 (40 mg in 2 mL dimethyl acetamide) and thi azole were added to a screw cap pressure vial and heated to 155*C for 40 hours. The reac tion mixture was cooled and partitioned between water and ethyl acetate. The organic phase was separated, dried (MgSO 4 ), filtered, and evaporated under reduced pressure. The residue was purified by flash chromatography (3% to 5% MeOH in methylene chloride 15 with 1% ammonium hydroxide) to yield 61 mg of 5-(5-Furan-2-yl-2-isopropyl-4-meth oxy-phenoxy)-pyrimidine-2,4-diamine. (M+H) = 356. Mp = 199.1-203.3*C. Example 62: 5-[2-Isopropyl-5-(4-methanesulfonyl-piperazin-1-yl)-4-methoxy phenoxyl-)pyrimidine-2,4-diamine o 0 HO HO O OnOBn OH OBn Step Step2 Step 3 N 0H HN J'\ Bf CH3MgBr N H, PdC F HBN Bnn N Nn NBn

H

-124

NH

2 Step 4 OH Step 5 OH Step 6 N TFA, EtSH MeSO 2 CI ON NH 2 INN 0' SCHEME W Step 1. 1-14-(4-Benzyl-piperazin-1-yl)-2-hydroxy-5-methoxy-phenyl]-ethanone To a solution of 1-(2-Benzyloxy-4-fluoro-5-methoxy-phenyl)-ethanone (4.25 g, 15.5 5 mmol) in 3 mL DMF was added 1-benzyl-piperazine (5.4 mo, 30.9 mmol) and potassium carbonate (4.28 g, 30.9 mmol). The reaction mixture was heated under nitrogen to 130 140*C for 18 hours. The reaction mixture was cooled to RT, poured into ice water, and ex tracted with EtOAc. The combined organic layers were washed with brine, dried (MgSO 4 ), filtered, and evaporated under reduced pressure. The resulting residue was purified by 10 flash chromatography on silica gel (hexanes: ethyl acetate 8.5:1.5) to yield 4.5 g (73%) of 1-[4-(4-Benzyl-piperazin-1-yl)-2-hydroxy-5-methoxy-phenyl]-ethanone as a solid. Mp 90-92 0 C. Step 2. 2-{2-Benzyloxy-4-(4-benzyl-piperazin-1-yl)-5-methoxy-phenyl]-propan-2-ol 1-{4-(4-Benzyl-piperazin-1-yl)-2-hydroxy-5-methoxy-phenyl]-ethanone (4.25 g, 11.3 15 mmol) was dissolved in 100 mL dry THF, and the resulting solution was cooled to 0*C and stirred under nitrogen. Methyl magnesium bromide (5.6 mL, 16.9 mmol) was added dropwise, and the reaction mixture was stirred for 30 minutes at 0"C. The reaction mixture was stirred for an additional 12 hours at RT, then poured into ice water and extracted with EtOAc. The combined organic layers were washed with saturated aqueous 20 ammonium chloride, dried (MgSO4), filtered, and evaporated under reduced pressure. The resulting residue was purified by flash chromatography on silica gel (hexanes: ethyl acetate 8:2) to yield 4.73 g (94%) of 2-(2-Benzyloxy-4-(4-benzyl-piperazin-1-yl)-5 methoxy-phenyll-propan- 2 -ol as a solid. Mp = 94-96*C. Step 3. 2- (1 -Hydroxy- I-methyl-ethyl) -4-methoxy-5-piperazin-1 -yl-phenol 25 A mixture of 2-[2-Benzyloxy-4-(4-benzyl-piperazin-1-yl)-5-methoxy-phenyll-propan-2-ol (2.01 g, 4.5 mmol) 10 % Pd/C (0.28 g) in EtOH (60 mL) was hydrogenated at 50 psi at RT for 12 hours. The reaction mixture was filtered to remove the catalyst, and the filtrate was - 125 concentrated uner reduced pressure to yield 1.1g (92%) of 2-(1-Hydroxy-1-methyl-ethyl) 4-methoxy-5-piperazin-1-yl-phenol. Step 4. 2-Isopropyl-4-methoxy-5-piperazin-1-yl-phenol To a stirred suspension of 2-(1-Hydroxy-1-methyl-ethyl)-4-methoxy-5-piperazin-1-yl 5 phenol (0.5 g, 1.9 mmol) in dichloromethane under nitrogen at RT was aded TFA (7.2 mL, 93.86 mmol) followed by triethyl silane (3.0 mL, 18.8 mmol). The reaction mixture was stirred for 18 hours at RT, and then was evaporated under reduced pressure. The residue was partitioned between dichloromethane and saturated aqueous potassium carbonate. The organic layer was separated, washed with water, dried (MgSO 4 ), filtered, and 10 evaporated under reduced pressure to afford 0.47 g (99%) of 2-Isopropyl-4-methoxy-5 piperazin-1-yl-phenol as an oil. Step 5. 2-Isopropyl-5-(4-methanesulfonyl-piperazin-1-yl)-4-methoxy-phenol To a stirring solution of 2-Isopropyl-4-methoxy-5-piperazin-1-yl-phenol ( 0.47 g, 1.88 mmol) in dichloromethane at 0"C under nitrogen was added triethylamine (0.26 mL, 1.89 15 mmol), followed by methanesulfonyl chloride (0.15 mL, 1.89 mmol). The reaction mix ture was stirred at 0*C for five minutes, and then allowed to warm to RT. The reaction mixture was partitioned between dichloromethane and water, and the organic layer was separated, washed with water, dried (MgSO4), filtered, and evaporated under reduced pres sure. The residue was purified via flash chromatography (hexanes:EtOAc 3:2) to afford 0.1 20 g (16%) of 2-Isopropyl-5-(4-methanesulfonyl-piperazin-1-yl)-4-methoxy-pheno as an oil. Step 6. 5-[2-Isopropyl-5-(4-methanesulfonyl-piperazin-1-yl)-4-methoxy-phenoxy] pyrimidine-2,4-diamine 2-Isopropyl-5-(4-methanesulfonyl-piperazin-1-yl)-4-methoxy-phenol was converted, using the procedure of steps 4-6 of Example 49, to 5-[2-Isopropyl-5-(4-methanesulfonyl 25 piperazin- 1-yl)-4-methoxy-phenoxy-pyrimidine-2,4-diamine. (M+H) = 437. Mp = 115 117 0 C. Example 63: 5-(4-Ethyl-7-methyl-benzo[blthiophen-5-yloxy)-pyrimidine-2,4-diamine The synthetic procedure used in this Example is outlined in Scheme X c Step 1 S Step 2 s 'Br O -126 Step 5 Step 3 SD Br Step 4 Br 2 EtMgBr / \ pTSOH 0 acetone n SN Step 6 Step 7 O NaH Brederick's S /-N N S/ Reagent \ S ~~. Br.~

NH

2 Step / 0 N Step/ O NN Guanidine HCI N NH 2 Aniline HCI S N SCHEME X 5 Step 1: N-Methoxy-N-methyl-butyramide Pyridine (100 mL) was cooled to 0*C, and N,O-dimethylhydroxylamine hydrochloride (20.14g, 206 mmol) was added with stirring. This solution was stirred for 10 minutes, and then a solution of butyryl chloride (19.5 ml, 20g, 188 mmol) dissolved in 50 ml methylene chloride was added via addition funnel over 30 minutes. A precipitate formed after 5 10 minutes. This suspension was stirred and allowed to warm to RT. Stirring was continued for 2.0 hours, and the reaction was diluted with water, extracted with methylene chloride twice. The methylene chloride layers were combined and washed with I N HCl twice and once with brine. Diethyl ether (100 mL) was added to facilitate emulsion separation, and the organic layer was separated and washed with saturated bicarbonate solution, brine, and 15 dried over magnesium sulfate. The solution was filtered and the solvent removed in vacuo to give N-Methoxy-N-methyl-butyramide as an oil (22.1 g, 89%). Step 2. 1 -Thiophen-3-yl-butan-1 -one 3-Bromothiophene (11 g, 67 mmol) dissolved in hexanes (110 ml) was cooled to -20*C in acetone/water bath, and n-BuLi (28 ml, 71 mmol, 2.5 n solution in hexanes)was added 20 slowly, over 10 min, then stirred 10 min at -20*C. THF was added (10 ml) over 5 min with rapid stirring. Precipitate formed after about 2/3 of addition. After adding all of the THF, the reaction mixture was stirred 20 min at -20*C, then 20 ml Hexanes was added and the reaction mixture was allowed to warm to 0*C. N-Methoxy-N-methyl-butyramide (9.29 g, - 127 71 mmol) dissolved in 20 ml hexanes was added via cannula over 5 minutes, and the reaction mixture was stirred at 0"C for 1.5 hours. The reaction mixture was quenched with water, then I N HCI (75 ml), extracted twice with ether, washed 1 N HCI, brine, and dried over magnesium sulfate. Solvent was removed under reduced pressure to give an oil, 5 which was chromatographed by flash chromatography (5% EtOAc/hexanes) to give 6.7 g, 64% of 1-Thiophen-3-yl-butan- 1-one as an oil. Step 3. 2-Bromo- 1 -thiophen-3-yl-butan- 1 -one 1-Thiophen-3-yl-butan-1-one (6.7 g. 43 mmol) in 210 mL diethyl ether was cooled to 0"C, and 0.6 ml glacial acetic acid was added dropwise, followed by bromine (2.26 ml, 46 mmol) 10 dropwise. The reaction mixture was allowed to warm to RT over hours. The reaction mix ture was washed the with water, 1 N sodium thiosulfate, brine, and then dried over mag nesium sulfate. Solvent was removed under reduced pressure to give an oil which was chromatographed (5% EtOAc/Hexanes) to give 6.1 g 2-Bromo- I -thiophen-3-yl-butan- 1 one, 79%, .as an oil. 15 Step 4. 5-Thiophen-3-yl-heptane-2,4-dione EtMgBr (6.69 ml, 13 mmol, 2 M in ethyl ether) in benzene (10 ml) was cooled to 0 0 C, and tBuOH (1.28 ml, 13 mmol) was slowly added. The reaction mixture was stirred at 0*C for 5 minutes, then acetone (530 ul, 7 mmol) was added, followed by a solution of 2-Bromo-1 thiophen-3-yl-butan-1-one (1.3 g, 6 mmol) in 3 ml benzene via cannula. The reaction 20 mixture was heated to reflux for 1 hour, and acetone (250 ul) was added. The reaction mix ture was heated 2 hours more at reflux. The reaction was cooled, quenched with 1 N HC (10 ml), extracted three times with diethyl ether, washed brine, and dried over magnesium sulfate. The solvent was removed in vacuo and the residue chromatographed (5% ethyl acetate/hexanes) to give 247 mg of 2-Bromo-1-thiophen-3-yl-butan-1-one starting mate 25 rial and 520 mg of 5-Thiophen-3-yl-heptane-2, 4 -dione, 44%. Step 5. 4-Ethyl-7-methyl-benzoibithiophen-5-ol 5-Thiophen-3-yl-heptane-2, 4 -dione (410 mg, 2 mmol) was dissolved inin 15 ml benzene, and p-toluene sulfonic acid monohydrate (408 mg, 2 mmol) was added. The reaction mix ture was heated to reflux for 30 min, cooled, diluted with diethy ether, washed with satu 30 rated sodium bicarbonate, water, brine, and dried over magnesium sulfate. Rotovaped to give 370 mg of 4-Ethyl-7-methyl-benzo[b]thiophen-5-ol, 98 %, as a white solid. Step 6. (4-Ethyl-7-methyl-benzo[bithiophen-5-yloxy)-acetonitrile 4-Ethyl-7-methyl-benzo[blthiophen-5-ol (438 mg, 2 mmol) was dissolved in 10 ml DMF, and the reaction mixture was cooled to 0*C. Sodium hydride (66 mg, 3 mmol) was added -128 and the reaction mixture was stirred 30 minutes at 0"C. Bromoacetonitrile (170 L, 3 mmol) was added, and the reaction mixture was stirred 10 minutes at 0"C, then allowed to warm to RT. The reaction was quenched after 1 hour at RT with water, diluted with ethyl acetate, washed with water, brine, and dried over magnesium sulfate. Solvent was removed 5 in vacuo, and the residue chromatographed (10% ethyl acetate in hexanes) to give 422 mg of (4-Ethyl-7-methyl-benzo b thiophen-5-yloxy)-acetonitrile as an oil, 80%. Step 7. 3,3-Bis-dimethylamino-2-(4-ethyl-7-methyl-benzo[blthiophen-5-yloxy) propionitrile 3,3-Bis-dimethylamino-2-(4-ethyl-7-methyl-benzoIb]thiophen-5-yloxy)-propionitrile 10 (422 mg, 2 mmol) was dissolved in 2.5 ml tert-ButoxyBis (dimethylamino) methane, and the reaction mixture was heated to 100*C for 1 hour. The reaction was cooled to RT and the volume reduced under 1 mm vacuum while heating at 60*C. The residue was then placed on a high vacuum pump for 1 hour to give 3,3-Bis-dimethylamino-2-(4-ethyl-7 methyl-benzo[b]thiophen-5-yloxy)-propionitrile, 595 mg, 98 %, as an oil. 15 Step 8. 2-(4-Ethyl-7-methyl-benzo[blthiophen-5-yloxy)-3-phenylamino-acrylonitrile 3,3-Bis-dimethylamino-2-(4-ethyl-7-methyl-benzoib]thiophen-5-yloxy)-propionitrile (590 mg, 2 mmol) and aniline HCl (1.1g, 9 mmol) in 5 mL absolute ethanol were heated at reflux for 2.0 hours.. In a separate flask, guanidine HC (0.850 mg., 9 mmol) and sodium methoxide solution (1.83 ml, 9 mmol, 4.9 molar solution in methanol) were mixed in 1 ml 20 Ethanol. The guanidine solution was added to the reaction mixture via pipette, and the reaction mixture was heated to reflux for 5 hours, then cooled. Solvent was removed in vacuo, and the residue was, chromatographed (5% MeOH/methylene chloride/1%

NH

4 0H) to give 368 mg 2-(4-Ethyl-7-methyl-benzo[b]thiophen-5-yloxy)-3-phenylamino acrylonitrile, 61%. Also present was 50 mg of 5-(4-Ethyl-7-methyl-benzo[b]thiophen-5 25 yloxy)-pyrimidine-2,4-diamine, 9%. Step 9 2-(4-Ethyl-7-methyl-benzotb]thophen-5-yloxy)-3-phenylamino-acrylonitrile (360 mg, 1 mmol), guanidine HCl (411 mg, 4 mmol) and sodium methoxide (880 ul, 4 mmol, 4.9 M solution in methanol) in 5 mL absolute ethanol were heated to reflux in 5 ml absolute 30 ethanol for 2 hours. Premixed guanidine HCl (411 mg, 4 mmol) and sodium methoxide (880 ul, 4 mmol, 4.9 M solution in methanol) in 1 ml EtOH was added via pipette, and the reaction mixture was heated to reflux for 2 hours. The reaction mixture was cooled, di luted with water, extracted twice with EtOAc, washed with brine, and dried over magne sium sulfate. Solvent was removed in vacuo to give 241 mg of 5-(4-Ethyl-7-methyl-benzo 35 [b]thiophen-5-yloxy)-pyrimidine-2,4-diamine as a white solid (74%). Mass Spec M+H = -129 301, M.P. = 181"C. Recrystallization of 175 mg of this product from MeOH and HCl/di ethyl ether afforded 98 mg of the corresponding HCl salt 49%. , Mass Spec M+H = 301, M.P. > 300 0 C. Example 64: 5-(1,3-Dimethyl-6-trifluoromethyl-1H-indol-5-yloxy)-pyrimidine-2,4 5 diamine The synthetic procedure used in this Example is outlined in Scheme Y.

CF

3 Step 1

CF

3 Step 2

CF

3 OI H2/Pd/C Os O 00 0 2 N N 0 N 0

CF

3 CFa CF 3 Step 3 N O,, Step 4 OF3 Step 5 N N N 0 0

CF

3

CF

3

NH

2 Step 6 OH Step 7 0 -N N N NH 2 10 SCHEME Y Step 1. 4-Methoxy-3-trifluoromethyl-phenylamine 1-Methox-y-4-nitro-2-trifluoromethyl-benzene (10g, 45 mmol) was hydrogenated in a Paar apparatus with shaking at 50 psi for 4 hours, with 1 g 10 wt % Pd/C. The reaction mixture was filtered through celite, and the filtrate was evaporated in vaccuo to give 8.6 g 15 4-Methoxy-3-trifluoromethyl-phenylamine, 99%, as a solid. Step 2. 5-Methoxy-3-methyl-6-trifluoromethyl- 1H-indole-2-carboxylic acid ethyl ester 4-Methoxy-3-trifluoromethyl-phenylamine (5g, 26 mmol) in 12 mL water was cooled to -5"C (Ice/Methanol bath). Conc. HCl was added dropwise (7 ml), and the reaction mix- - 130 ture was stirred for five minutes. A solution of NaNO 2 (2.0 g, 29 mmol) dissolved in 3 ml water was added dropwise over 10 minutes, and the reaction mixture was tirred for 30 min. Sodium acetate (1.8 g, 22 mmol) was then added, and stirring was continued at -5"C. In a separate flask, ethyl alpha-acetoacetate (4.55 g, 29 mmol) in 20ml absolute ethanol was 5 stirred, and KOH (1.6 g, 29 mmol) dissolved in 3 ml water was added, followed by ice (30g). The resulting diazonium salt was added quickly to the reaction mixture, rinsing in with 5 ml EtOH, and the reaction mixture was stirred at 0"C for 3.5 hours, then stored at - 10"C) for 16 hours. The reaction mixture was warmed to RT and extracted with ethyl acetate, washed with brine, and dried over magnesium sulfate. Solvent was removed under 10 reduced pressure to leave a liquid residue. In a separate flask 100 ml EtOH and 21 ml acetyl chloride were mixed, with cooling in an ice bath, then heated to 70 0 C. The liquid residue was added via pipette over 15 minutes to the acetyl chloride solution. This reaction mixture was heated to reflux for 2.5 hours, cooled, evaporated under reduced pressure. The residue was purified by column chromatography (10% ethyl acetate/hexane) to give 15 3.0 g 5-Methoxy-3-methyl-6-trifluoromethyl-1H-indole-2-carboxylic acid ethyl ester, 38% as a white solid. And triturated with diethyl ether to give 5-Methoxy-3-methyl-6-tri fluoromethyl-1H-indole-2-carboxylic acid ethyl ester (1.0g) as a white solid, and 5-Meth oxy-3-methyl-4-trifluoromethyl-1H-indole-2-carboxylic acid ethyl ester (13.9%) as a white solid. 20 Step 3. 5-Methoxy-3-methyl-6-trifluoromethyl- 1H-indole-2-carboxylic acid. 5-Methoxy-3-methyl-6-trifluoromethyl-1H-indole-2-carboxylic acid ethyl ester (3.0 g, 10 mmol) was dissolved in 10 ml absolute ethanol, and a solution of KOH (1.7 g, 30 mmol) in 7 ml water was added. The reaction mixture was heated to reflux for 2.5 hours, then cooled, acidified slowly with 6 N HCI to pH = 2, and extracted with ethyl acetate. The 25 combined organic layers were washed with brine, dried over magnesium sulfate, filtered, and concentrated under reduced pressure to give 2.0 g, (73 %) 5-Methoxy-3-methyl-6-tri fluoromethyl-1H-indole-2-carboxylic acid. Step 4. 5-Methoxy-3-methyl-6-trifluoromethyl-1 H-indole To a solution of 5-Methoxy-3-methyl-6-trifluoromethyl-1H-indole-2-carboxylic acid (2.0 30 g, 7 mmol) in 5 ml quinoline was added copper powder (50 mg), and the reaction mixture was heated to reflux for 1.5 hours. Copper powder (50 mg) was added, and the reaction mixture was refluxed for 1 hour. The reaction mixture was cooled, diluted with EtOAc, poured into 50 ml 6 N HCl, and extracted with EtOAc. The combined organic layers were washed with brine, dried over magnesium sulfate, filtered, and concentrated under reduced - 131 pressure. The residue was chromatographed (10% ErOAc/Hexanes) to give 5-Methoxy-3 methyl-6-trifluoromethyl-1H-indole (850 mg, 51%) as a solid. Step 5. 5-Methoxy-1,3-dimethyl-6-trifluoromethyl-1H-indole A solution of 5-Methoxy-3-methyl-6-trifluoromethyl-1H-indole (900 mg, 4 mmol) in 7 ml 5 DMF was cooled to 0"C, and sodium hydride (104 mg, 4 mmol, 95% powder) was added. The reaction mixture was stirred 15 minutes at 0"C, and then iodomethane (270 pLI, 4 mmol) was added. The reaction mixture was stirred for 1 hour and allowed to warm to RT. The reaction mixture was then cooled to 0*C, quenched by addition of I N NH 4 Cl, diluted with water, and extracted with EtOAc. The combined organic layers were washed 10 with water, brine, dried over magnesium sulfate, filtered, and concentrated under reduced pressure to give 5-Methoxy-1,3-dimethyl-6-trifluoromethyl-1H-indole (725 mg, 75%) as a solid. Step 6 5-Methoxy-1,3-dimethyl-6-trifluoromethyl-1H-indole (725 mg, 3 mmol) in methylene 15 chloride (15 ml) was cooled to 0"C, and BBr 3 (14.9 ml of a 1 N solution in methylene chloride) was slowly added via syringe. The reaction mixture was stirred 15 minutes at zero degrees, then allowed to warm to RT with stirring for one hour. The reaction mixture was quenched slowly with 75 mL1 N NaOH. The mixture was acidified to pH ca 5 with 1 N HCI, extracted with methylene chloride, and the combined organic layers were washed 20 with water, brine, and dried over magnesium sulfate. Solvent was removed under reduced pressure, and the residue was chromatographed (20% EtOAc/Hexanes) to give 235 mg (75%) 1,3-Dimethyl-6-trifluoromethyl-1H-indol-5-ol. Step 7 1,3-Dimethyl-6-trifluoromethyl-1H-indol-5-ol was converted to 5-(1,3-Dimethyl-6-tri 25 fluoromethyl-1H-indol-5-yloxy)-pyrimidine-2,4-diamine using the procedure of steps 6-9 of Example 62 (70 mg). The corresponding hydrochloride salt was recrystallized from MeOH/diethyl ether. Mass Spec M+H = 338, M.P. 256 0 C. Example 65: 6-(2,4-Diamino-pyrimidin-5-yloxy)-5-isopropyl-3-methyl-1H-indole-2 carboxylic acid 30 The synthetic procedure used in this Example is outlined in Scheme Z.

-132 Step1 0 1 Step 2 Os- Step 3 ON N I NN Ny 0 O CIH Step 6 N Step 4 O Step]5 0 OtN N... I 0 0 N N N N OEt N N EtO 2 C Et0 2 C SCHEME Z Step 1. N-(4-Acetyl-3-methoxy-phenyl)-acetamide 5 N-(3-Methoxy-phenyl)-acetamide (17.7 g, 107 mmol) in methylene chloride was cooled to 0*C, and acetyl chloride (19.0 ml, 268 mmol) was slowly added, followed by aluminum chloride (35.7 g, 268 mmol) in small portions over 15 min. The reaction mixture was stirred 15 minutes at zero degrees, then allowed to warm to RT with stirring. The reaction mixture was poured into ice, stirred 35 minutes, and filtered. The solid was washed with 10 water. The filtrate was extracted with EtOAc and solvent was removed under reduced pressure. The combined solids gave N-(4-Acetyl-3-methoxy-phenyl)-acetamide (16.5 g., 74%) as a solid. Step 2. N-[4-(1-Hydroxy-1-methyl-ethyl)-3-methoxy-phenyl]-acetamide Methyl magnesium chloride (49.9 ml, 150 mmol, 3 M solution in THF) in 100 ml THF was 15 cooled to 0*C, and N-(4-Acetyl-3-methoxy-phenyl)-acetamide (14.1 g, 68 mmol) in 200 ml THF was added via cannula to over 25 minutes. The reaction mixture was stirred and allowed to warm to RT over 2.5 hours. The reaction was quenched by addition of I N

NH

4 Cl and extracted with EtOAc. The combined organic layers were washed with 1 N ammonium chloride, brine, dried over MgSO 4 , and concentrated under reduced pressure 20 to afford N-[4-(1-Hydroxy-1-methyl-ethyl)-3-methoxy-phenyl]-acetamide (16.4 g, 100%). Step 3 N-(4-Isopropyl-3-methoxy-phenyl)-acetamide N-[4-(1-Hydroxy-1-methyl-ethyl)-3-methoxy-phenyll-acetamide (16.4 g) in 100 ml glacial acetic acid was stirred at room temp under N 2 , Palladium on activated carbon (3 g 1OWt%) was added, followed by 5 g of ammonium formate. The reaction mixture was heated to re 25 flux. After 30 minutes 5 g ammonium formate was added, and after 45 minutes another 8.5 g ammonium formate was added. Reflux was continued for another hour, then the reac- -133 tion mixture was cooled, and filtered through Celite. The filtrate was diluted with water, extracted with EtOAc, and the combinded organic layers were washed with brine and dried over magnesium sulfate. Evaporation under reduced pressure gave N-(4-Isopropyl-3 methoxy-phenyl)-acetamide (15.1 g, 99%). 5 Step 4. 4-Isopropyl-3-methoxy-phenylamine N-(4-Isopropyl-3-methoxy-phenyl)-acetamide (14.5g, 69.9 mmol) in 200 ml 6 N HCl was heated to 95*C for 3.0 hours. The reaction mixture was cooled to RT, and allowed to sit for 72 hours at RT, during which time crystals formed. The reaction mixture was filtered, and the crystals were washed 1 N HCI and dried under vacuum to give 4-Isopropyl-3-methoxy 10 phenylamine as an HCl salt (7.6 g, 60%). Step 5. 5-Isopropyl-6-methoxy-3-methyl-1H-indole-2-carboxylic acid ethyl ester 4-Isopropyl-3-methoxy-phenylamine HCl salt (3.1g, 19 mmol) was cooled to -5*C (Ice/ Methanol bath), and a mixture of 8 ml water and 5 ml concentrated. HCl was added drop wise. The reaction mixture was stirred for five minutes, and sodium nitrite (1.42g, 21 15 mmol) dissolved in 3 ml water was added dropwise over 10 minutes. The reaction mixture was stirred for 45 min, then sodium acetate (1.3 g, 16 mmol) was added. In a separate flask, to a stirring mixture of ethyl alpha-acetoacetate (3.26g, 21 mmol) in 15 ml absolute ethanol was added KOH (1.2 g, 21 mmol) dissolved in 3 ml water and then added ice (10 g). This mixture was added to the diazonium salt, and the reaction mixture was stirred at 0*C for 20 3.5 hours. The reaction mixture was stored at -10*C for 16 hours, then extracted with EtOAC. The combined organic layers were washed with brine, dried over magnesium sulfate, and concentrated under reduced pressure to a liquid residue. In a separate flask, mixed 100 ml EtOH was mixed slowly with 22 ml acetyl chloride, with cooling in an ice bath. The EtOH/acetyl chloride solution was heated to 70"C, and added the residue was 25 added via pipette over 10 min. The reaction mixture was heated to reflux for 2.5 hours, cooled, evaporated under reduced pressure to give slurry; diluted with water (100 ml) and filtered. The solid was washed with water. The solid was triturated with hexanes to give 5 Isopropyl-6-methoxy-3-methyl-1H-indole-2-carboxylic acid ethyl ester (1.7 g, 34%) as a solid. 30 Step 6. 6-(2,4-Diamino-pyrimidin-5-yloxy)-5-isopropyl-3-methyl- 1H-indole-2-carboxylic acid ethyl ester 5-Isopropyl-6-methoxy-3-methyl- 1H-indole-2-carboxylic acid ethyl ester was converted to 6-(2,4-Diamino-pyrimidin-5-yloxy)-5-isopropyl-3-methyl-1H-indole-2-carboxylic acid ethyl ester using the procedure of steps 5-9 of Example 62. Mass Spec M+H = 370, M.P. 35 188.2 0

C.

- 134 6-(2,4-Diamino-pyrimidin-5-yloxy)-5-isopropyl-3-methyl-1H-indole-2-carboxylic acid ethyl ester was converted to 6-(2,4-diamino-pyrimidin5-yloxy)-5-isopropyl-3-methyl-1H indole-2-carboxylic acid by treatment with ethanolic potassium hydroxide. (91 mg, 76%). Mass Spec M+ H= 342 M.P. >300*C. 5 Example 66: 5-(7-Isopropyl-4-methyl-benzooxazol-6-yloxy)-pyrimidine-2,4-diamine Step 1. 7-Isopropyl-4-methyl-benzooxazol-6-ol

H

3 C CH 3 H 3 C CH 3 HO N OH Step1 , OOH H I CH(OEt)3 , H 2

SO

4 \ I

H

2 N N;

CH

3 CH 3 To a flask charged with 4-amino-2-isopropyl-5-methyl-benzene-1,3-diol (450 mg, 2.5 mmol) (Treibs and Albrecht, Journalfiler Praktische Chemie (1961), 13, 291-305), purged 10 with argon, and cooled to 0"C was sequentially added triethylorthoformate (0.7 mL, 4.2 mmol), EtOH (4 mL), and a 10% v/v solution of H 2

SO

4 in EtOH (40 RL). The reaction was allowed to warm to RT slowly, stirred overnight, quenched with saturated NaHCO 3 , and concentrated. The residue was partitioned between water and methylene chloride. The combined organic phases were dried with Na 2

SO

4 and concentrated to provide 510 mg 15 of 7-isopropyl-4-methyl-benzooxazol-6-ol. Step 2. 5-(7-Isopropyl-4-methyl-benzooxazol-6-yloxy)-pyrimidine-2,4-diamine

H

3 C CH 3 H 3 C CH 3 NH O Step22 O OH 0 ,0 <\ I <\I N N N;- NH2

CH

3 CH 3 Using the procedure of steps 5-7 of Example 2, 7-isopropyl-4-methyl-benzooxazol- 6 -ol was converted to 5-(7-isopropyl-4-methyl-benzooxazol-6-yloxy)-pyrimidine-2,4-diamine. 20 The hydrochloride salt was recrystallized from EtOH/diethyl ether. MS (M+H): 300. Example 67: 5-(7-Isopropyl-2,4-dimethyl-benzooxazol-6-yloxy)-pyrimidine-2,4 diamine Step 1. 7-Isopropyl-2,4-dimethyl-benzooxazol-6-ol - 135

H

3 C CH 3

H

3 C CH 3 HO OH Step 1 O OH ' H3C-< I

H

2 N CCH 3

(OCH

3

)

3 , H 2

SO

4 N

CH

3

CH

3 To a flask charged with 4-amino-2-isopropyl-5-methyl-benzene-1,3-diol (250 mg, 1.4 mmol) [Treibs and Albrecht, Journal fuer Praktische Chemie 13:291-305 (1961)], purged with argon, and cooled to 0"C, was sequentially added triethylorthoformate (0.53 mL, 4.2 5 mmol), MeOH (2.5 mL), and a 10% v/v solution of H 2

SO

4 in MeOH (25 pL). The reaction was allowed to warm to RT slowly, stirred overnight, quenched with saturated NaHCO 3 , and concentrated. The residue was partitioned between water and methylene chloride. The combined organic phases were dried with Na 2

SO

4 and concentrated. Purification via flash chromatography afforded 175 mg of 7-isopropyl-2,4-dimethyl-benzooxazol-6-ol. 10 Step 2. 5-(7-Isopropyl-2,4-dimethyl-benzooxazol-6-yloxy)-pyrimidine-2,4-diamine

H

3 C CH 3 HC CH, NH2 Step 2NH O OH O O0 N H3C-<\ I mH 3C-<\ I NH N

CH

3 CH, Using the procedure of steps 5-7 of Example 2, 7-isopropyl-2,4-dimethyl-benzooxazol-6-ol was converted to 5-(7-Isopropyl-2,4-dimethyl-benzooxazol-6-yloxy)-pyrimidine- 2

,

4 diamine. The hydrochloride salt was recrystallized from EtOH/diethyl ether. MS (M+H): 15 314, MP >300 0 C. Example 68: 5-(5-Iodo-2-isopropyl-4-methoxy-phenoxy)-1-oxy-pyrimidine-2,4 diamine

NH

2 NH 2 O,,j N mCPBA N O N N HF/MeOH/DMF N NH 2 0 N NH 2 N NH I - 0 To a solution of compound 5-(5-Iodo-2-isopropyl-4-methoxy-phenoxy)-pyrimidine- 2

,

4 20 diamine (1.6g, 4.0 mmoles) in DMF/MeOH (30 ml/10 ml) was added HF (48% aqueous solution, 0.3 ml, 8.3 mmoles). After 3 minutes, m-chloroperoxybenzoic acid (80%, 2.16 g, -136 10.0 mmoles) was added, the mixture was stirred at RT for one hour. Cold IN NaOH aqueous solution was added, and the reaction mixture was partitioned between ethyl acetate and water. The organic phase was washed with brine, dried over anhydrous sodium sulfate, filtered, concentrated in vacuo. The residue was purified by silica gel chromato 5 graphy (2%, 5%, 6%, 8% MeOH in CH 2 Cl 2 with 0.1 % NH 4 0H) to give 5-(5-Iodo-2 isopropyl-4-methoxy-phenoxy)-1-oxy-pyrimidine-2,4-diamine (0.2g, 12%) as a yellow solid. M+H: 417. Example 69: Formulations Pharmaceutical preparations for delivery by various routes are formulated as shown in the 10 following Tables. "Active ingredient" or "Active compound" as used in the Tables means one or more of the Compounds of Formula I. Composition for Oral Administration Ingredient % wt./wt. Active ingredient 20.0% Lactose 79.5% Magnesium stearate 0.5% The ingredients are mixed and dispensed into capsules containing about 100 mg each; one capsule would approximate a total daily dosage. 15 Composition for Oral Administration Ingredient % wt./wt. Active ingredient 20.0% Magnesium stearate 0.5% Crosscarmellose sodium 2.0% Lactose 76.5% PVP (polyvinylpyrrolidine) 1.0% The ingredients are combined and granulated using a solvent such as methanol. The formulation is then dried and formed into tablets (containing about 20 mg of active compound) with an appropriate tablet machine. Composition for Oral Administration Ingredient Amount Active compound 1.0 g - 137 Fumaric acid 0.5 g Sodium chloride 2.0 g Methyl paraben 0.15 g Propyl paraben 0.05 g Granulated sugar 25.5 g Sorbitol (70% solution) 12.85 g Veegum K (Vanderbilt Co.) 1.0 g Flavoring 0.035 ml Colorings 0.5 mg Distilled water q.s. to 100 ml The ingredients are mixed to form a suspension for oral administration. Parenteral Formulation Ingredient % wt./wt. Active ingredient 0.25 g Sodium Chloride qs to make isotonic Water for injection 100 ml _The active ingredient is dissolved in a portion of the water for injection. A sufficient quantity of sodium chloride is then added with stirring to make the solution isotonic. The 5 solution is made up to weight with the remainder of the water for injection, filtered through a 0.2 micron membrane filter and packaged under sterile conditions. Suppository Formulation Ingredient % wt./wL Active ingredient 1.0% Polyethylene glycol 1000 74.5% Polyethylene glycol 4000 24.5% The ingredients are melted together and mixed on a steam bath, and poured into molds containing 2.5 g total weight. 10 Topical Formulation Ingredients Grams Active compound 0.2-2 Span 60 2 Tween 60 2 - 138 Mineral oil 5 Petrolatum 10 Methyl paraben 0.15 Propyl paraben 0.05 BHA (butylated hydroxy anisole) 0.01 Water q.s. 100 All of the ingredients, except water, are combined and heated to about 60*C with stirring. A sufficient quantity of water at about 60 0 C is then added with vigorous stirring to emulsify the ingredients, and water then added q.s. about 100 g. Nasal Spray Formulations 5 Several aqueous suspensions containing from about 0.025-0.5 percent active compound are prepared as nasal spray formulations. The formulations optionally contain inactive ingredients such as, e.g., microcrystalline cellulose, sodium carboxymethylcellulose, dextrose, and the like. Hydrochloric acid may be added to adjust pH. The nasal spray formulations may be delivered via a nasal spray metered pump typically delivering about 10 50-100 microliters of formulation per actuation. A typical dosing schedule is 2-4 sprays every 4-12 hours. Example 70: P2X3/P2Xv 3 FLIPR (Fluorometric Imaging Plate Reader) Assay CHO-KI cells were transfected with cloned rat P2X 3 or human P2Xv 3 receptor subunits and passaged in flasks. 18-24 hours before the FLIPR experiment, cells were released from 15 their flasks, centrifuged, and resuspended in nutrient medium at 2.5 x 105 cells/ml. The cells were aliquoted into black-walled 96-well plates at a density of 50,000 cells/well and incubated overnight in 5% CO 2 at 37"C. On the day of the experiment, cells were washed in FLIPR buffer (calcium- and magnesium-free Hank's balanced salt solution, 10 mM HEPES, 2 mM CaCl 2 , 2.5 mM probenecid; FB). Each well received 100 pl FB and 100 pl of 20 the fluorescent dye Fluo-3 AM [2 ptM final conc.]. After a 1 hour dye loading incubation at 37 0 C, the cells were washed 4 times with FB, and a final 75 pl/well FB was left in each well. Test compounds (dissolved in DMSO at 10 mM and serially diluted with FB) or vehicle were added to each well (25 pil of a 4X solution) and allowed to equilibrate for 20 minutes at RT. The plates were then placed in the FLIPR and a baseline fluorescence measurement 25 (excitation at 488 nm and emission at 510-570 nm) was obtained for 10 seconds before a 100 p./well agonist or vehicle addition. The agonist was a 2X solution of a,p-meATP pro- - 139 ducing a final concentration of 1 pM (P2X 3 ) or 5 pM (P2X 3 ). Fluorescence was measured for an additional 2 minutes at 1 second intervals after agonist addition. A final addition of ionomycin (5 pM, final concentration) was made to each well of the FLIPR test plate to establish cell viability and maximum fluorescence of dye-bound cytosolic calcium. Peak 5 fluorescence in response to the addition of a,p-meATP (in the absence and presence of test compounds) was measured and inhibition curves generated using nonlinear regression. PPADS, a standard P2X antagonist, was used as a positive control. Using the above procedure, compounds of the invention exhibited activity for the P2X 3 re ceptor. The compound N*2*-Isopropyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimi 10 dine-2,4-diamine, e.g., exhibited a plC 5 o of approximately 7.54 using the above assay. Surprisingly and unexpectedly, compounds of formulae (I - IV) wherein R1 is isopropyl exhibit better affinity for P2X 3 than compounds wherein R' is any other alkyl or other substituent. Table 3 below provides comparison pICso data for various compounds of different R' substituents. 15 TABLE 3 Compound R pICso 5-(2-tert-Butyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine -tert-butyl < 5.00 5-(4,5-Dimethoxy-2-propyl-benzyl)-pyrimidine-2,4-diamine -n-propyl < 5.00 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine -isopropyl 6.94 5-(2-Ethyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine -ethyl 5.85 5-(4,5-Dimethoxy-2-methyl-benzyl)-pyrimidine-2,4-diamine -methyl < 5.00 As can be seen from Table 3, compounds of the invention wherein R is isopropyl exhibit better affinity for the P2X 3 receptor than analogous compounds having other alkyl substituents as R'. While the present invention has been described with reference to the specific embodiments 20 thereof, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the true spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation, material, composition of matter, process, process step or steps, to the objective spirit and scope of the present invention. All such modifications are intended to be within 25 the scope of the claims appended hereto.

Claims

1. A compound of formula (I) R NR T R Ra2 X N R - RS R D (I) 5 or a pharmaceutically acceptable salts thereof, wherein: X is -CH 2 -; -CHOH-; Y is hydrogen; or -NRd R wherein one of Rd and R* is hydrogen, and the other is 10 hydrogen; alkyl; cycloalkyl; cycloalkylalkyl; haloalkyl; haloalkoxy; hydroxyalky; alkoxyalkyl; acetyl; alkylsulfonyl; alkylsulfonylalkyl; aminocarbonyloxyalkyl; hydroxycarbonylalkyl; hydroxyalkyloxycarbonylalkyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl; D is an optional oxygen; is R' is isopropyl; 25 R , R 3 , R 4 and R 5 each independently is hydrogen; alkyl; alkenyl; amino; halo; amido; haloalkyl; alkoxy; hydroxy; haloalkoxy; nitro; amino; hydroxyalkyl; alkoxyalkyl; hydroxyalkoxy; alkynylalkoxy; alkylsulfonyl; arylsulfonyl; cyano; aryl; heteroaryl; heterocyclyl; heterocyclylalkoxy; aryloxy; heteroaryloxy; aralkyloxy; heteroaralkyloxy; 20 optionally substituted phenoxy; -(CH 2 )m-(Z)n-(CO)-Rf or -(CH2)m-(Z)n-SO2-(NRg)n-Rf where m and n each independently is 0 or 1, Z is 0 or NR 5 , Rf is hydrogen, alkyl, hydroxy, alkoxy, amino, hydroxyalkyl or alkoxyalkyl, and each R9 is independently hydrogen or alkyl; or R 3 and R 4 may together form an alkylene dioxy; or R 3 and R 4 together with the atoms to which they are attached may form a five or six-membered ring 25 that optionally includes one or two heteroatoms selected from 0, S and N; or R2 and R 3 may together form an alkylene dioxy; or R 2 and R 3 together with the atoms to which they are attached may form a five or six-membered ring that optionally includes one or two heteroatoms selected from 0, S and N; R 6 is hydrogen; alkyl; halo; haloalkyl; amino; or alkoxy; and 30 one of R7 and R 8 is hydrogen, and the other is hydrogen; alkyl; cycloalkyl; cycloalkylalkyl; haloalkyl; haloalkoxy; hydroxyalky; alkoxyalkyl; acetyl; alkylsulfonyl; alkylsulfonylalkyl; aminocarbonyloxyalkyl; hydroxycarbonylalkyl; - 141 hydroxyalkyloxycarbonylalkyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl.

2. The compound of claim 1 wherein said compound is (a) of the formula (II) R NR 7R a NR'R R

3 N NRR' 5R (II) wherein: X is: -CH 2 -; R' is isopropyl; io R 3 and R4 each independently is: hydrogen; alkyl; alkenyl; amino; halo; amido; haloalkyl; alkoxy; hydroxy; haloalkoxy; nitro; hydroxyalkyl; alkoxyalkyl; hydroxyalkoxy; alkynylalkoxy; alkylsulfonyl; arylsulfonyl; cyano; aryl; heteroaryl; heterocyclyl; heterocyclylalkoxy; aryloxy; heteroaryloxy; aralkyloxy; heteroaralkyloxy; optionally substituted phenoxy; -(CH 2 )m-(Z)n-(CO)-Rf or -(CH2)m-(Z).-SO2-(NR9)n-Rf 15 where m and n each independently is 0 or 1, Z is 0 or NR9, Rf is hydrogen, alkyl, hydroxy, alkoxy, amino, hydroxyalkyl or alkoxyalkyl, and each R9 is independently hydrogen or alkyl; or R3 and R 4 may together form an alkylene dioxy; or R 3 and R 4 together with the atoms to which they are attached may form a five or six-membered ring that optionally includes one or two heteroatoms selected from 0, S and N; 20 one of R 7 and R8 is hydrogen, and the other is: hydrogen; alkyl; cycloalkyl; cycloalkylalkyl; haloalkyl; haloalkoxy; hydroxyalky; alkoxyalkyl; acetyl; alkylsulfonyl; alkylsulfonylalkyl; aminocarbonyloxyalkyl; hydroxycarbonylalkyl; hydroxyalkyloxycarbonylalkyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl; and 25 one of Rd and Re is hydrogen, and the other is: hydrogen; alkyl; cycloalkyl; cycloalkylalkyl; haloalkyl; haloalkoxy; hydroxyalky; alkoxyalkyl; acetyl; alkylsulfonyl; alkylsulfonylalkyl; aminocarbonyloxyalkyl; hydroxycarbonylalkyl; hydroxyalkyloxycarbonylalkyl; aryl; aralkyl; arylsulfonyl; heteroaryl; heteroarylalkyl; heteroarylsulfonyl; heterocyclyl; or heterocyclylalkyl; or 30 (b) a compound of the formula (VII) -142 R NR'R' R2 X N Ac- N4ANR Re a-E (VII) wherein: X is -CH 2 -; R' is isopropyl; 5 R2 is hydrogen; alkyl; alkenyl; amino; halo; amido; haloalkyl; alkoxy; hydroxy; haloalkoxy; nitro; hydroxyalkyl; alkoxyalkyl; hydroxyalkoxy; alkynylalkoxy; alkylsulfonyl; arylsulfonyl; cyano; aryl; heteroaryl; heterocyclyl; heterocyclylalkoxy; aryloxy; heteroaryloxy; aralkyloxy; heteroaralkyloxy; optionally substituted phenoxy; or -(CH 2 )m-(Z)n-(CO)-Rf or -(CH2)m-()-SO2-(NRg),-Rf where m and n each independently 10 is 0 or 1, Z is 0 or NR9, Rf is hydrogen, alkyl, hydroxy, alkoxy, amino, hydroxyalkyl or alkoxyalkyl, and each R9 is independently hydrogen or alkyl; R 7 , R 8 , Rd and Re are as defined in (a); Q is CR 9 , one of A and E is 0, S or NR1 0 and the other is CR 9 or N; or Q is N, one of A and E is NR 0 and the other is CR 9 ; is each R 9 is independently hydrogen, alkyl, halo or alkoxy; and R1 0 is hydrogen, alkyl, hydroxyalkyl, alkoxyalkyl, -(CH 2 )m-(Z)n-(CO)-R or -(CH2)m-(Z).-SO2-(NR9)n-Rf; or (c) a compound of the formula (VIII) 4 NRR 4A , X N Q N )NRR' 20 (VIII) wherein: X is: -CH 2 -; R' is: isopropyl; R 4 is: hydrogen; alkyl; alkenyl; amino; halo; amido; haloalkyl; alkoxy; hydroxy; 25 haloalkoxy; nitro; hydroxyalkyl; alkoxyalkyl; hydroxyalkoxy; alkynylalkoxy; alkylsulfonyl; arylsulfonyl; cyano; aryl; heteroaryl; heterocyclyl; heterocyclylalkoxy; aryloxy; heteroaryloxy; aralkyloxy; heteroaralkyloxy; optionally substituted phenoxy; or - 143 -(CH 2 )m-(Z)n-(CO)-R'or -(CH2)m-(Z)n-SO2-(NR8)n-Rf where m and n each independently is 0 or 1, Z is 0 or NR9, Rf is hydrogen, alkyl, hydroxy, alkoxy, amino, hydroxyalkyl or alkoxyalkyl, and each RI is independently hydrogen or alkyl; R 7 , R 8 , Rd and Re are as defined in (a); 5 Q is CR 9 , one of A and E is 0, S or NR1W and the other is CR 9 or N; or Q is N, one of A and E is NR' 0 and the other is CR 9 ; each R 9 is independently hydrogen, alkyl, halo or alkoxy; and R1 0 is hydrogen, alkyl, hydroxyalkyl, alkoxyalkyl, -(CH 2 )m-(Z)n-(CO)-Rf, or -(CH2)m-(Z)n-SO2-(NR9)n-RI. 10 3. A pharmaceutical composition comprising a pharmaceutically acceptable excipient; and a compound of Claim 1 according to claim 1.

4. Use of a compound according to claim I for the manufacture of a medicament for the treatment of a disease mediated by a P2X 3 or P2X 2 / 3 receptor antagonist.

5. The use according to claim 4, wherein said disease is a genitourinary disease is or a disease which is associated with pain.

6. The use according to claim 5, wherein said genitourinary disease is: reduced bladder capacity; frequent micturition; urge incontinence; stress incontinence; bladder hyperreactivity; benign prostatic hypertrophy; prostatitis; detrusor hyperreflexia; urinary frequency; nocturia; urinary urgency; overactive bladder; pelvic hypersensitivity; 20 urethritis; prostatitits; pelvic pain syndrome; prostatodynia; cystitis; or idiopathic bladder hypersensitivity; and the disease which is associated with pain is: inflammatory pain; surgical pain; visceral pain; dental pain; premenstrual pain; central pain; pain due to bums; migraine or cluster headaches; nerve injury; neuritis; neuralgias; poisoning; ischemic injury; interstitial cystitis; cancer pain; viral, parasitic or bacterial infection; 25 post-traumatic injury; or pain associated with irritable bowel syndrome.

7. A compound according to claim 1 which is selected from the group consisting of: N 2-Isopropyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-N 4 -methyl-pyrimidine-2,4 diamine, 30 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N4-isoxazol-5-ylmethyl-pyrimidine-2,4 diamine, N 2-Isopropyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine, 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N4-(2-methoxy-benzyl)-pyrimidine-2,4 diamine, - 144 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N -(2,2,2-trifluoro-ethyl)-pyrimidine-2,4 diamine, 3-[2-Amino-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidin-4-ylamino] -propane 1,2-diol, 5 N-[4-Amino-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidin-2-yl]-acetamide, 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N 4 -(4-methoxy-benzyl)-pyrimidine-2,4 diamine, 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N 4 -phenyl-pyrimidine-2,4-diamine, 5-(5-Chloro-2-isopropyl-4-methoxy-benzyl)-N 2 -phenethyl-pyrimidine-2,4-diamine, 10 5-(5-Chloro-2-isopropyl-4-methoxy-benzyl)-pyrimidine-2,4-diamine, N 4-sobutyl-N -isopropyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4 diamine, 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N -phenyl-pyrimidine-2,4-diamine, N 2,N 4 -Diisopropyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine, 15 5-(5-Chloro-2-isopropyl-4-methoxy-benzyl)-N 2 -isopropyl-pyrimidine-2,4-diamine, 2-[2-Amino-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidin-4-ylamino] -ethanol, 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine, 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N 4 - [2-(4-methoxy-phenyl)-ethyl] pyrimidine-2,4-diamine, 20 N -Benzyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine, 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N 4 -(4-methanesulfonyl-cyclohexyl) pyrimidine-2,4-diamine, N2-Cyclopropyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine, N 4-Isopropyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine, 25 N2-Ethyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine, 5-(2-Isopropyl-4,5-dimethoxy-benzyl)-N 4 - [2-(3-methoxy-phenyl)-ethyl] pyrimidine-2,4-diamine, 2-[4-Amino-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidin-2-ylamino] -ethanol, N2-tert-Butyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine, 30 N -sobutyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine, 5-(5-Chloro-2-isopropyl-4-methoxy-benzyl)-N -cyclopropyl-pyrimidine-2,4 diamine, 5-(2-Isopropyl-4-methoxy-5-phenoxy-benzyl)-pyrimidine-2,4-diamine, N 4 -Isobutyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine, 35 N 4 -Ethyl-5-(2-isopropyl-4,5-dimethoxy-benzyl)-pyrimidine-2,4-diamine, /O2CA'7O 1\.TTD - 145 N 4 -Benzyl-5 -(2-isopropyl-4,5 -dimethoxy-benzyl)-pyrimidine-2,4-diamine, 5 -(2-Jsopropyl-4,5 -dimethoxy-benzyl)-N 4 -(2,2,2-trifluoro-ethyl)-pyrimidine-2,4 diamine, 5 -(2-Jsopropyl-4,5 -dimethoxy-benzyl)-N -_(4-methoxy-phenyl)-pyrimidine-2,4 5 diamine, N -Jlsopropyl-5 -(2-isopropyl-4,5 -dimethoxy-benzyl)-N 4 -phenyl-pyrimidine-2,4 diamine, N 4 -Ethyl-N 4 -isopropyl-5 -(2-isopropyl-4,5 -dimethoxy-benzyl)-pyrimidine-2,4 diamine, 10 5 -(2-Jsopropyl-4,5 -dimethoxy-benzyl)-N 4 -(l1-methyl-piperidin-4-yl)-pyrimidine 2,4-diamine, 5 -(2-Jsopropyl-4,5 -dimethoxy-benzyl)-N -_(2-methoxy-phenyl)-pyrimidine-2,4 diamine, 5 -(4,5 -Dichloro-2-isopropyl-benzyl)-pyrimidine-2,4-diamine, 15 5 -(5 -Chloro-2-isopropyl-4-methoxy-benzyl)-N 2 -ethyl-pyrimidine-2,4-diamine, 5 -(2-Jsopropyl-4-methoxy-5 -methyl-benzyl)-pyrimidine-2,4-diamine, 5 -(2-Jsopropyl-4,5 -dimethoxy-benzyl)-N -_pyrimidin-2-yl-pyrimidine-2,4-diamine, 5 -(2-Jsopropyl-4,5 -dimethoxy-benzyl)-N -_(2-methoxy-ethyl)-pyrimidine-2,4 diamine, 20 N -_Benzyl-N -_isopropyl-5 -(2-isopropyl-4,5 -dimethoxy-benzyl)-pyrimidine-2,4 diamine, 1 -(4-12- 14-Amino-S -(2-isopropyl-4,5 -dimethoxy-benzyl)-pyrimidin-2-ylamino] propyll -piperazin- 1 -yl)-ethanone, 5 -(2-Jsopropyl-4,5 -dimethoxy-benzyl)-N 4 -(tetrahydro-pyran-4-yl)-pyrimidine-2,4 25 diamine, N 4 _C yclopropyl-5 -(2-isopropyl-4,5 -dimethoxy-benzyl)-pyrimidine-2,4-diamine, 5 -(5 -Ethoxy-2-isopropyl-4-methoxy-benzyl)-pyrimidine-2,4-diamine, N -_(2,4-Dimethoxy-phenyl)-5 -(2-isopropyl-4,5 -dimethoxy-benzyl)-pyrimidine-2,4 diamine, 30 N ~~2_Cylbtl5(-spoy-,-iehx-ezl-yiiie24daie 30 N 2(-Cclouty-5 n-(2-isopropyl-4,5 -dimethoxy-benzyl)-pyrimidine-2,4-i, diamine, 5 -(4-Chloro-2-isopropyl-5 -methoxy-benzyl)-pyrimidine-2,4-diamine, 5 -(5 -Bromo-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine, 101 A '70 1 sT - 146 5 -(5 -Chloro-2-isopropyl-4-methoxy-benzyl)-N -_(3 -methoxy-phenyl)-pyrimidine 2,4-diamine, 5 -(2-Jsopropyl-4,5 -dimethoxy-benzyl)-N 2,N 4-diphenyl-pyrimidine-2,4-diamine, 5-(5-Chlor-2-isopropl-4-methox-benzyl)-N2_iouy-yiiie24dai 5 5-(5 -Chloro-2-isopropyl-4-methoxy-benzyl)-N -isobuyl-pyrimidine-2,4-diamine, 5 5 -(5 -Cho-sopropyl-4 methoxy-benzyl)-N 2 -hyl-pyrimidine-2,4-diamine, 5 -(5 -Chloro-2-isopropyl-4-methoxy-benzyl)-N -_methyl-pyrimidine-2,4-diamine, 2- 12-Jsopropylamino-5 -(2-isopropyl-4,5 -dimethoxy-benzyl)-pyrimidin-4-ylamino] ethanol, 10 N -_(4-Chloro-phenyl)-5 -(2-isopropyl-4,5 -dimethoxy-benzyl)-pyrimidine-2,4 diamine, 5 -(2-Jsopropyl-4,5 -dimethoxy-benzyl)-N 4 _methyl-pyrimidine-2,4-diamine, 5 -(2-Jsopropyl-4,5 -dimethoxy-benzyl)-N 4 _(2-methoxy-ethyl)-pyrimidine-2,4 diamine, 15 N ~~2_tr-uy--5clr--spoy--ehx -ezl-yi iie24da ie 15 N -tBetByl-5 -(5 -chloro-2-isopropyl-4-methoxy-benzyl)-pyrimidine-2,4-diamine, 5 -(2-Jsopropyl-4,5 -dimethoxy-benzyl)-pyrimidin-4-ylamine, 5 -(5 -Chloro-2-isopropyl-4-methoxy-benzyl)-N -_cyclohexyl-pyrimidine-2,4 diamine, 20 (2,4-Diamino-pyrimidin-5 -yl)-(2-isopropyl-4,5 -dimethoxy-phenyl)-methanone, (2,4-Diamino-pyrimidin-5 -yl)-(2-isopropyl-4,5 -dimethoxy-phenyl)-methanol, (5 -Chloro-2-isopropyl-4-methoxy-phenyl)- (2,4-diamino-pyrimidin- 5 -yl) -methanol, (5 -(5 -Fluoro-2-isopropyl-4-methoxy-benzyl)-pyrimidine-2,4-diamine, N 4 -Jsopropyl-5 -(2-isopropyl-4,5 -dimethoxy-benzyl)-N 2 _methyl-pyrimidine-2,4 25 diamine, 5 -(5 -Jodo-2-isopropyl-4-methoxy-benzyl)-pyrimidine-2,4-diamine, 5 -(5 -Chloro-2-isopropyl-4-methoxy-benzyl)-N 2_(2,2,2-trifluoro-ethyl)-pyrimidine 2,4-diamine, 5-[5 -(5 -Chloro-thiophen-2-yl)-2-isopropyl-4-methoxy-benzyl] -pyrimidine-2,4 30 diamine, S -(2-Jsopropyl-4-methoxy-5 -thiophen-3 -yl-benzyl)-pyrimidine-2,4-diamine, 5 -(5 -Chloro-2-isopropyl-4-methoxy-benzyl)-N2-(2-methoxy-ethyl)-pyrimidine-2,4 diamine, N- 12-Acetylamino-5 -(2-isopropyl-4-methoxy-5 -methyl-benzyl)-pyrimidin-4-yl] 35 acetamide, 101 A '70 1 sT - 147 5-[5-(4,5-Dihydro-oxazol-2-yl)-2-isopropyl-4-methoxy-benzyl]-pyrimidine-2,4 diamine, 5-(5-Furan-2-yl-2-isopropyl-4-methoxy-benzyl)-pyrimidine-2,4-diamine, 5-(2-Isopropyl-5-methanesulfonyl-4-methoxy-benzyl)-pyrimidine-2,4-diamine, and 5 5-(2,4-Diamino-pyrimidin-5-ylmethyl)-4-isopropyl-2-methoxy-benzonitrile.

8. A method of treating a disease mediated by a P2X 3 P2X 2 / 3 receptor antagonist comprising administering an effective amount of a compound according to any one of claims 1, 2 or 7 to a human in need thereof.

9. The method according to claim 8 wherein said disease is a genitourinary 10 disease or a disease which is associated with pain.

10. The method according to claim 9 wherein said genitourinary disease is: reduced bladder capacity; frequent micturition; urge incontinence; stress incontinence; bladder hyperreactivity; benign prostatic hypertrophy; prostatitis; detrusor hyperreflexia; urinary frequency; nocturia; urinary urgency; overactive bladder; pelvic hypersensitivity; 15 urethritis; prostatitits; pelvic pain syndrome; prostatodynia; cystitis; or idiopathic bladder hypersensitivity; and the disease which is associated with pain is: inflammatory pain; surgical pain; visceral pain; dental pain; premenstrual pain; central pain; pain due to bums; migraine or cluster headaches; nerve injury; neuritis; neuralgias; poisoning; ischemic injury; interstitial cystitis; cancer pain; viral, parasitic or bacterial infection; 20 post-traumatic injury; or pain associated with irritable bowel syndrome. F. Hoffmann-La Roche AG Patent Attorneys for the Applicant/Nominated Person SPRUSON & FERGUSON /O2CA'7O 1\.TTD