AU2007201832A1 - Muscarinic agonists - Google Patents
Muscarinic agonists Download PDFInfo
- Publication number
- AU2007201832A1 AU2007201832A1 AU2007201832A AU2007201832A AU2007201832A1 AU 2007201832 A1 AU2007201832 A1 AU 2007201832A1 AU 2007201832 A AU2007201832 A AU 2007201832A AU 2007201832 A AU2007201832 A AU 2007201832A AU 2007201832 A1 AU2007201832 A1 AU 2007201832A1
- Authority
- AU
- Australia
- Prior art keywords
- propyl
- butylpiperidine
- compound
- butyl
- mmol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000000472 muscarinic agonist Substances 0.000 title description 9
- 150000001875 compounds Chemical class 0.000 claims description 179
- 238000000034 method Methods 0.000 claims description 127
- 102000014415 Muscarinic acetylcholine receptor Human genes 0.000 claims description 55
- 108050003473 Muscarinic acetylcholine receptor Proteins 0.000 claims description 55
- 125000000217 alkyl group Chemical group 0.000 claims description 51
- 230000004044 response Effects 0.000 claims description 49
- WEVYAHXRMPXWCK-UHFFFAOYSA-N acetonitrile Substances CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 42
- 102000009660 Cholinergic Receptors Human genes 0.000 claims description 41
- 108010009685 Cholinergic Receptors Proteins 0.000 claims description 41
- 230000000694 effects Effects 0.000 claims description 36
- SIKJAQJRHWYJAI-UHFFFAOYSA-N benzopyrrole Natural products C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 claims description 34
- 125000001475 halogen functional group Chemical group 0.000 claims description 32
- 125000003118 aryl group Chemical group 0.000 claims description 28
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 28
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- 239000008194 pharmaceutical composition Substances 0.000 claims description 20
- -1 4-(4-Butylpiperidine- 1-yl)-butyric acid Chemical compound 0.000 claims description 18
- 125000001072 heteroaryl group Chemical group 0.000 claims description 16
- 125000003342 alkenyl group Chemical group 0.000 claims description 15
- 150000003839 salts Chemical class 0.000 claims description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- OIPILFWXSMYKGL-UHFFFAOYSA-N acetylcholine Chemical compound CC(=O)OCC[N+](C)(C)C OIPILFWXSMYKGL-UHFFFAOYSA-N 0.000 claims description 11
- 229960004373 acetylcholine Drugs 0.000 claims description 11
- 125000004453 alkoxycarbonyl group Chemical group 0.000 claims description 11
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- IWWQAODRCXCHIH-UHFFFAOYSA-N tert-butyl n-[2-(4-chlorobutanoyl)phenyl]carbamate Chemical compound CC(C)(C)OC(=O)NC1=CC=CC=C1C(=O)CCCCl IWWQAODRCXCHIH-UHFFFAOYSA-N 0.000 claims description 6
- SKXUCEIKBFKFSQ-UHFFFAOYSA-N tert-butyl n-[2-[4-(4-butylpiperidin-1-yl)butanoyl]phenyl]carbamate Chemical compound C1CC(CCCC)CCN1CCCC(=O)C1=CC=CC=C1NC(=O)OC(C)(C)C SKXUCEIKBFKFSQ-UHFFFAOYSA-N 0.000 claims description 6
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- MNAWZWPIQRYUCT-UHFFFAOYSA-N 3-[3-(4-butylpiperidin-1-yl)propyl]-1,2-benzothiazole Chemical compound C1CC(CCCC)CCN1CCCC1=NSC2=CC=CC=C12 MNAWZWPIQRYUCT-UHFFFAOYSA-N 0.000 claims description 4
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- HBROZNQEVUILML-UHFFFAOYSA-N salicylhydroxamic acid Chemical compound ONC(=O)C1=CC=CC=C1O HBROZNQEVUILML-UHFFFAOYSA-N 0.000 description 1
- 208000026451 salivation Diseases 0.000 description 1
- 238000007423 screening assay Methods 0.000 description 1
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000003572 second messenger assay Methods 0.000 description 1
- 150000003333 secondary alcohols Chemical class 0.000 description 1
- 229940076279 serotonin Drugs 0.000 description 1
- 239000008159 sesame oil Substances 0.000 description 1
- 235000011803 sesame oil Nutrition 0.000 description 1
- 239000004208 shellac Substances 0.000 description 1
- 229940113147 shellac Drugs 0.000 description 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 description 1
- 235000013874 shellac Nutrition 0.000 description 1
- ZFRKQXVRDFCRJG-UHFFFAOYSA-N skatole Chemical compound C1=CC=C2C(C)=CNC2=C1 ZFRKQXVRDFCRJG-UHFFFAOYSA-N 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 1
- 239000004299 sodium benzoate Substances 0.000 description 1
- 235000010234 sodium benzoate Nutrition 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
- BEOOHQFXGBMRKU-UHFFFAOYSA-N sodium cyanoborohydride Chemical compound [Na+].[B-]C#N BEOOHQFXGBMRKU-UHFFFAOYSA-N 0.000 description 1
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229940071182 stannate Drugs 0.000 description 1
- 125000005402 stannate group Chemical group 0.000 description 1
- 235000011150 stannous chloride Nutrition 0.000 description 1
- 230000000707 stereoselective effect Effects 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 229940086735 succinate Drugs 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000000829 suppository Substances 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 230000035900 sweating Effects 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- YLJREFDVOIBQDA-UHFFFAOYSA-N tacrine Chemical compound C1=CC=C2C(N)=C(CCCC3)C3=NC2=C1 YLJREFDVOIBQDA-UHFFFAOYSA-N 0.000 description 1
- 229960001685 tacrine Drugs 0.000 description 1
- 229940095064 tartrate Drugs 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- KZZHPWMVEVZEFG-UHFFFAOYSA-N tert-butyl n-phenylcarbamate Chemical compound CC(C)(C)OC(=O)NC1=CC=CC=C1 KZZHPWMVEVZEFG-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 229940124597 therapeutic agent Drugs 0.000 description 1
- 125000001113 thiadiazolyl group Chemical group 0.000 description 1
- 125000000335 thiazolyl group Chemical group 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- CHXZRHMQQRUVHF-UHFFFAOYSA-N thiophene A Natural products CC#CC1=CC=C(C#CC#CC=C)S1 CHXZRHMQQRUVHF-UHFFFAOYSA-N 0.000 description 1
- AXZWODMDQAVCJE-UHFFFAOYSA-L tin(II) chloride (anhydrous) Chemical compound [Cl-].[Cl-].[Sn+2] AXZWODMDQAVCJE-UHFFFAOYSA-L 0.000 description 1
- 230000000699 topical effect Effects 0.000 description 1
- 239000012049 topical pharmaceutical composition Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 230000037317 transdermal delivery Effects 0.000 description 1
- 238000001890 transfection Methods 0.000 description 1
- ZMANZCXQSJIPKH-UHFFFAOYSA-O triethylammonium ion Chemical compound CC[NH+](CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-O 0.000 description 1
- 210000001635 urinary tract Anatomy 0.000 description 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical class CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 1
- 230000008673 vomiting Effects 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 208000016261 weight loss Diseases 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
- 235000010493 xanthan gum Nutrition 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
- 229930195724 β-lactose Natural products 0.000 description 1
Landscapes
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
AUSTRALIA
Patents Act 1990 COMPLETE SPECIFICATION Standard Patent Applicant: ACADIA PHARMACEUTICALS, INC.
Invention Title: MUSCARINIC AGONISTS The following statement is a full description of this invention, including the best method for performing it known to me/us: WO 01/83472 PCT/US01/13561 MUSCARINIC AGONISTS Field of the Invention SThe present invention relates to compounds that affect cholinergic receptors, especially muscarinic receptors. The present invention provides compounds that are agonists of cholinergic receptors including muscarinic receptors, especially the ml and m4 subtype of muscarinic receptors. The invention also provides methods of using the provided compounds n for modulating conditions associated with cholinergic receptors, especially for treating or alleviating disease conditions associated with muscarinic receptors, ml or m4 subtypes of receptors.
SBackground of the Invention Muscarinic cholinergic receptors mediate the actions of the neurotransmitter acetylcholine in the central and peripheral nervous systems, gastrointestinal system, heart, endocrine glands, lungs, and other tissues. Muscarinic receptors play a central role in the central nervous system for higher cognitive functions, as well as in the peripheral parasympathetic nervous system. Five distinct muscarinic receptor subtypes have been identified, ml-m5. The ml subtype is the predominant subtype found in the cerebral cortex and is believed to be involved in the control of cognitive functions; m2 is the predominant subtype found in heart and is believed to be involved in the control of heart rate; m3 is believed to be involved in gastrointestinal and urinary tract stimulation as well as sweating and salivation; m4 is present in brain and may be involved in locomotion; and m5, present in brain, may be involved in certain functions of the central nervous system associated with the dopaminergic system.
Conditions associated with cognitive impairment, such as Alzheimer's disease, are accompanied by loss of acetylcholine in the brain. This is believed to be the result of degeneration of cholinergic neurons in the basal forebrain, which innervate areas of the association cortex,and hippocampus, which is involved in higher processes.
Efforts to increase acetylcholine levels have focused on increasing levels of choline, the precursor for acetylcholine synthesis, and on blocking acetylcholine esterase (AChE), the enzyme that metabolizes acetylcholine. Administration of choline or phosphatidylcholine has not been very successful. AChE inhibitors have shown some therapeutic efficacy, but may cause cholinergic side effects due to peripheral acetylcholine stimulation, including abdominal cramps, nausea, vomiting, diarrhea, anorexia, weight loss, myopathy and WO 01/83472 PCT/US01/13561 depression. Gastrointestinal side effects have been observed in about a third of the patients S treated. In addition, some AChE inhibitors, such as tacrine, have also been found to cause Ssignificant hepatotoxicity, with elevated liver transaminases observed in about 30% of Spatients. The adverse effects of AChE inhibitors have limited their clinical utility.
Known ml muscarinic agonists such as arecoline have also been found to be weak CI agonists of m2 as well as m3 subtype and are not very effective in treating cognitive impairment, most likely because of dose-limiting side effects.
C N There is a need for compounds that increase acetylcholine signaling or effect in the OC brain. Specifically there is a need for muscarinic agonists that are active at various NI 10 muscarinic receptor subtypes in the central and peripheral nervous system. Furthermore, there is a need for more highly selective muscarinic agonists, such as ml- or m4-selective CI agents, both as pharmacological tools and as therapeutic agents.
Summary of the Invention The present invention provides compounds that affect cholinergic, especially muscarinic, receptors that have agonist activity at the ml or m4 subtype of muscarinic receptors, or both. The compounds of the invention are of the general formula zw2
ZW
3
(I)
wherein: Zi is CRI or N, Z 2 is CR 2 or N, Z 3 is CR 3 or N, and Z 4 is CR 4 or N, where no more than two of Z, Z 2
Z
3 and Z 4 are N; Wi is O, S, or NR 5 one of W 2 and W 3 is N or CR, and the other of W 2 and W 3 is CG; Wi is NG, W 2 is CR 5 or N, and W 3 is CR6 or N; or Wi and W 3 are N, and W 2 is NG; WO 01/83472 PCTJUSOIII3561 G is of formula (HI):
R
1 o
P[)
Y is 0, S, CHOH, -NR 7
-CH=N-,
or absent; N- 5 p is1, 2,3, 4or 00 Z is CR 8
R
9 or absent; each t is 1, 2, or 3; each RI, R 2
R
3 and R 4 independently, is H, amino, hydroxyl, halo, or straight- or branched-chain C 1 6 alkcyl, C 2 alkenyl, C 2 alkynyl, C 1 6 heteroalkyl, CI. haloalkyl, -CN,
CE
3 -CORI,, -NO 2 -SRII, -NHC(O)RI 1
-C(O)NR
12
RI
3
-NR
12
R
1 3 NRI IC(O)NR1 2
RI
3
-SO
2
NRI
2
RI
3 -OC(O)R1 1, -O(CH 2 )qNRi 2
RI
3 or -(CH2)qNRl 2 Rl 3 where q is an integer from 2 to 6, or R, and R 2 together form -NH-N=N- or R 3 and R 4 together form
NH-N=N-;
each R 5
R
6 and R 7 independently, is H, CI-6 ailkyl; formyl; Cm cycloalkyl; C 5 .6 aryl, optionally substituted with halo or C 1 6 alkyl; or C5_ heteroaryl, optionally substituted with halo or CI-6 alkyl; each 8 and R 9 independently, is H or straight- or branched-chain C 1 8 alkyl; RIO is straight- or branched-chain C 1 8 alkyl, C 2 8 alkenyl, C 2 8 alkynyl, C 1 8 alkylidene,
C
1 8 alkoxy, C 1 8 heteroalkyl, C 1 8 aminoalkyl, C 14 8 haloalkyl, C 1 8 alkoxycarbonyl, C 1 8 hydroxyalkcoxy, C 1 8 hydroxyalkyl, -SH, C 1 .8 alkylthio, -O-CH 2
-C
5 .6 aryl, -C(O)-C 5 6 aryl substituted with C1.
3 alkyl or halo, C5_ aryl, C5..6 cycloalkyl, C 5 .6 heteroaryl, heterocycloalcyl, -NR 12 R1 3
-C(O)NR
12
R
1 3
-NR
1 1
C(O)NR
12
R
1 3 -CRI IR 12
R
13 -OC(O)RI 1
(O)(CH
2
)SNR
12
R
1 3 or -(CH 2 )SNR1 2 RI3, s being an integer from 2 to 8; R, 0 is H, straight- or branched-chain C 1 8 alkyl, C 2 8 alkenyl, C 2 -8 alcynyl, C 1 -8 alkylidene, C 1
I.
8 alkoxy, C 1 8 heteroalkyl, C 14 8 aminoallcyl, C 14 8 haloalkyl, C 1 8 alcoxycarbonyl,
C
1 8 hydroxyallcoxy, C 1 8 hydroxyalkyl, or C 1 8 alkylthio; each R, 1 independently, is H, straight- or branched-chain C 1 s ailkyl, C 2 8 alkenyl, C 2 -8 alkynyl, C 2 8 heteroalkyl, C 2 -8s aminoallcyl, C 2 8 haloalicyl, C 1 8 alkoxycarbonyl, C 2 -8s hydroxyalkyl, -C(O)-C 5 6 aryl. substituted with C 1 3 alkyl or halo, C 5 6 aryl, C 5 6 heteroaryl, 6 cycloalkyl, C 5 6 heterocycloalkyl, -C(O)NR1 2
R
1 3
-CR
5
R
12
R
13
-(CH
2 )tNR 12
R
1 3 t is an integer from 2 to 8; and WOO01/83472 PCT/USOI/13561 each R 12 and R 13 independently, is H, C 1 -6 alkyl; C 3 -6 cycloallcyl; C5_ aryl, optionally substituted with halo or C 1 -6 alkyl; or C5_ heteroaryl, optionally substituted with halo or CI-6 ailkyl; or RI 2 and RI 3 together form a cyclic structure; or a pharmaceutically acceptable salt, ester or prodrug thereof 51 The present invention further provides pharmaceutical compositions including an effective amount of a compound of formula or pharmaceutically acceptable salts, esters, or prodrugs thereof Also provided are methods of increasing an activity of a cholinergic receptor OC) comprising contacting the cholinergic receptor or a system containing the cholinergic receptor with an effective amount of a compound of formula as well as kits for performing the same. Preferably, the receptor is a muscarinic receptor of the ml or m4 c-I subtype. The receptor may be located in the central nervous system, peripheral nervous system, gastrointestinal system, heart, endocrine glands, or lungs; and the receptor may be a truncated, mutated, or modified cholinergic receptor.
Furthermore, the present invention relates to a method of activating a cholinergic receptor comprising contacting the cholinergic receptor or a system containing the cholinergic receptor with an effective amount of at least one compound of formula as well as kits for performing the method. In a preferred embodiment, the compound is selective for the mlI or m4 muscarinic receptor subtype, or both. In another preferred embodiment, the compound has little or substantially no effect on m2 or m3 activity.
Another aspect of the present invention relates to a method of treating a disease condition associated with a cholinergic receptor comprising administering to a subject in need of such treatment an effective amount of at least one of the compounds of the invention. Kits for performing the method are also provided. The disease conditions that are treated include, but are not limited to conditions of cognitive dysfunction, forgetfulness, confusion, memory loss, attention deficits, deficits in visual perception, depression, pain, sleep disorders, and psychosis. The disease conditions also include, but are not limited to diseases of Alzheimer's disease, Parkinson's disease, Huntington's chorea, Friederich's ataxia, Gilles de la Tourette's Syndrome, Down Syndrome, Pick disease, dementia pugilistica, clinical depression, agerelated cognitive decline, attention-deficit disorder, and sudden infant death syndrome.
Further provided are methods of treating the symptoms of a disease or condition associated with reduced levels of acetylcholine comprising administering an effective amount of at least one compound of the invention.
WO 01/83472 PCT/US01/13561 In yet another embodiment, the present invention provides a method of treating S Alzheimer's disease. The method comprises administering to a subject in need of such Streatment an effective amount of at least one compound of the invention.
SIn still another embodiment, the present invention provides a method of treating glaucoma. The method comprises administering an effective amount of at least one ci compound of the invention.
Another aspect of the present invention is a method for identifying a genetic
C
polymorphism predisposing a subject to being responsive to a compound of the invention.
0C) The method comprises administering to a subject a therapeutically effective amount of the N 10 compound; measuring the response of said subject to the compound, thereby identifying a responsive subject having an ameliorated disease condition associated with a cholinergic C, receptor; and identifying a genetic polymorphism in the responsive subject, wherein the genetic polymorphism predisposes a subject to being responsive to the compound.
The present invention also features a method for identifying a subject suitable for treatment with a compound of the invention, and kits for identifying the same. The method comprises detecting the presence of a polymorphism in a subject wherein the polymorphism predisposes the subject to being responsive to the compound, and wherein the presence of the polymorphism indicates that the subject is suitable for treatment with the compound.
WO 01/83472 PCT/US01/13561 Detailed Description of the Invention SDefinitions O For the purpose of the current disclosure, the following definitions shall in their entireties be used to define technical terms and to define the scope of the composition of matter for which protection is sought in the claims.
N A "receptor" is intended to include any molecule present inside or on the surface of a cell that may affect cellular physiology when it is inhibited or stimulated by a ligand.
Typically, a receptor comprises an extracellular domain with ligand-binding properties, a 00 transmembrane domain that anchors the receptor in the cell membrane, and a cytoplasmic domain that generates a cellular signal in response to ligand binding ("signal transduction").
A receptor also includes any molecule having the characteristic structure of a receptor, but with no identifiable ligand. In addition, a receptor includes a truncated, modified, mutated receptor, or any molecule comprising partial or all of the sequences of a receptor.
"Ligand" is intended to include any substance that interacts with a receptor.
"Agonist" is defined as a compound that increases the activity of a receptor when it interacts with the receptor.
The "ml receptor" is defined as a receptor having an activity corresponding to the activity of the ml muscarinic receptor subtype characterized through molecular cloning and pharmacology.
"Selective" or "selectivity" is defined as a compound's ability to generate a desired response from a particular receptor type, subtype, class or subclass while generating less or little response from other receptor types. "Selective" or "selectivity" of an ml or m4 muscarinic agonist compound means a compound's ability to increase the activity of the ml or m4 muscarinic receptor, respectively, while causing little or no increase in the activity of other subtypes including m3 and m5 subtypes, and preferably the m2 subtype. Compounds of the presents invention may also show selectivity toward both ml and m4 receptors, i.e.
increase the activity of both the ml and m4 muscarinic receptors, while causing little or no increase in the activity of other subtypes including the m3 and m5 subtypes, and preferably the m2 subtype.
The term "subject" refers to an animal, preferably a mammal or a human, who is the object of treatment, observation or experiment.
As used herein, "coadministration" of pharmacologically active compounds refers to the delivery of two or more separate chemical entities, whether in vitro or in vivo.
Coadministration means the simultaneous delivery of separate agents; the simultaneous 6 WO 01/83472 PCT/US01/13561 delivery of a mixture of agents; as well as the delivery of one agent followed by delivery of a second agent or additional agents. Agents that are coadministered are typically intended to Swork in conjunction with each other.
SThe term "an effective amount" as used herein means an amount of active compound or pharmaceutical agent that elicits the biological or medicinal response in a tissue, system, tC- animal or human that is being sought by a researcher, veterinarian, medical doctor or other clinician, which includes alleviation or palliation of the symptoms of the disease being Streated.
00 "Alkyl" means a straight or branched-chain alkane group with 1-6 carbon atoms in the chain, for instance methyl, ethyl, propyl, isopropyl, n-butyl, sec-butyl, tert-butyl, etc. The term "heteroalkyl" is intended to indicate an alkane group containing 1 or 2 heteroatoms C1 selected from O, S or N.
"Alkenyl" means a straight or branched-chain alkene group with 2-6 carbon atoms in the chain; the term "alkynyl" is intended to indicate a straight or branched-chain alkyne group with 2-6 carbon atoms in the chain.
The terms "aryl" and "cycloalkyl" preferably refer to mono- and bicyclic ring structures comprising 5 to 12 carbon atoms, more preferably monocyclic rings comprising to 6 carbon atoms. Where such rings comprise one or more heteroatoms, selected from N, S and 0, heterocyclic, or heteroaryl rings) such rings comprise a total of 5 to 12 atoms, more preferably 5 to 6 atoms. Heterocyclic rings include, but are not limited to, furyl, pyrrolyl, pyrazolyl, thienyl, imidazolyl, indolyl, benzofuranyl, benzothiophenyl, indazolyl, benzoimidazolyl, benzothiazolyl, isoxazolyl, oxazolyl, thiazolyl, isothiazolyl, pyridyl, piperidinyl, piperazinyl, pyridazinyl, pyrimidinyl, pyrazinyl, morpholinyl, oxadiazolyl, thiadiazolyl, imidazolinyl, imidazolidinyl and the like. The ring may be substituted by one or more of the groups included in the definition of R 2 above. It is understood that the substituents Ci.
6 alkyl, C 2 -6 alkenyl, C2-6 alkynyl, C 1 6 alkoxy, Ci-6 heteroalkyl, Ci-.
aminoalkyl, C.
6 haloalkyl or C1-6 alkoxycarbonyl may, if present, be substituted by one or more of hydroxyl, C 1 -4 alkoxy, halogen, cyano, amino or nitro.
As used herein, the term "halogen" or "halo" includes chlorine, fluorine, which are preferred, and iodine and bromine.
The present invention provides compounds that are agonists ofcholinergic receptors including muscarinic receptors. Especially, the present invention provides compounds that are selective for the ml or m4 muscarinic receptor subtype, or both. The compounds provided by the present invention have therapeutic effect and can be used to treat disease WO 01/83472 PCT/USOI/13561 conditions associated with cholinergic receptors, Cognitive impairment in Alzheimer 's disease, glaucoma, pain, or schizophrenia According to one embodiment, the present invention provides compounds of formula
(G)
Zw 2 W2 Z3 00 wherein: Nl ZI is CRI or N, Z 2 is CR 2 or N, Z 3 isCR 3 or N, andZ 4 is CR 4 or N,no more than two of ZI,Z 2
Z
3 andZ 4 being N; CIW, isO0, S, or NR 5 one of W 2 and W 3 is Nor CR 6 and the other of W 2 and W 3 is CG; W, is NG, W 2 is CR 5 or N,and W 3 isCR 6 or N;or W, is N,W 2 is NG and W 3 is N; G is of formula (MI: is 0, S, CHOH, -NIIC(O)-, -NR 7
-CH=N-,
or absent; pis 1,2, 3, 4or Z is CRR or absent; each tis 1, 2, or 3; each RI, R 2
R
3 and R 4 independently, is H, amino, hydroxyl, halo, or straight- or branched-chain C..
6 alkyl, C 2 6 alkenyl, C 2 -6alkynyl, C 1 6heteroalkyl, C 2 6 haloalkyl, -CN,
CF
3 -ORI 1 -CORI 1
-NO
2 -SRI 1
-NHC(O)R
1
-C(O)NR
12
R]
3 -KR1 2
R
1 3
NRIIC(O)NR
12
RI
3 -SO2NR1 2
RI
3 0OC(O)R 1 -O(CH2)qNRI 2 RI3, or -(CH2)qNR1 2 R1 3 where q is an integer from 2 to 6, or R, and R 2 together form -NII-N=N- or R 3 and R 4 together form
NH-N=N-;
each R 5
R
6 and R 7 independently, is H, C 1 6 alyl; formyl; C 3 6 cycloallcyl; C 5 6 aryl, optionally substituted with halo or C 1 -6 ailyl; or C 5 6 heteroaryl, optionally substituted with halo or C 1 6 alkyl; WO 01/83472 PCTJUSOI/13561 each R8~ and R 9 independently, is H or straight- or branched-chain C 1 8 alkyl; RIO is straight- or branched-chain C 1 8 ailyl, C 2 8 alkenyl, C 2 8 alkCYnYl, CI..s alkylidene,
C
1 8 alkoxy, C 1 _8s heteroalcyl, C 1 8 aminoallcyl, C 1 8 haloalkyl, C 1 8 alkoxycarbonyl, C 1 8 hydroxyallcoxy, C 1 8 hydroxyallcyl, -SH, CI-8 alkylthio, -O-CH 2
-CS..
6 aryl, aryl substituted with CI..
3 alkyl or halo, C5-6~ aryl, C 5 -6 cycloalkyl, C 5 6 heteroaryl, C 5 6 c-i heterocycloallcyl, -NR 12
R
1 3 -C(O)NR1 2
R
1 3
-NR
1 1
C(O)NR
12
R
1 3
-CR
1 1
R
1 2
RI
3
-OC(O)R
11
(O)(CH
2 )SNR1 2
R
1 3 or -(CH 2 )SNR1 2
RI
3 s being an integer from 2 to 8;
R
10 is H, straight- or branched-chain C 1 s alkyl, C 2 8 alkenyl, C 2 -8s ailcynyl, C 1 8 OC) alkylidene, C 1 s alcoxy, C 1 8 heteroalkyl, C 14 8 aminoalkyl, C 1 s haloalkyl, C 14 8 alkoxycarbonyl,
C
1 s hydroxyalkoxy, C 1 8 hydroxyalkyl, or C 1 8 alkyltbio; each R, 1 independently, is H, straight- or branched-chain C 1 8 alkyl, C 2 8 alkenyl, C 2 8 Nalkynyl, C 2 8 heteroalkyl, C 2 -8s aminoallcyl, C 2 8 haloallcyl, C 1 8 alkoxycarbonyl, C 2 8 hydroxyalicyl, 6 aryl substituted with C 1 3 alkyl or halo, C5..
6 aryl, C5_6 heteroaryl, 6 cycloalkyl, C5..
6 heterocycloalkyl, -C(O)NR 12
RI
3
-CR
5
R
12
RI
3
-(CH
2 )tNR 12
RI
3 t is an integer from 2 to 8; and each R 12 and R 13 independently, is H, C 1 6 alkyl; C 3 6 cycloalkyl; C5..
6 aryl, optionally substituted with halo or C 1 6 alkyl; or C 5 6 heteroaryl, optionally substituted with halo or C 1 6 alkyl; or R 12 and R 13 together form a cyclic structure; or a pharmaceutically acceptable salt, ester or prodrug thereof.
According to a preferred series of embodiments, t is 2 and RIO' is H.
According to one preferred series of embodiments Y is S, 0, OC(O)- or absent. In another, RIO is alkyl, and where ZI is CR 1 or N, Z 2 is CR 2
Z
3 is CR 3 or N, and Z 4 is CR 4 In one embodiment, p is 2. In another, R 5 is H or C 1 6 alkyl.
In one embodiment each R 1
R
2
R
3 and R 4 independently, is H, halo, -NO 2 or straight- or branched-chain C 1 alkyl, or R, and R 2 together form -NH-N=N- or R 3 and R4 1 together form -NH-N=N-.
Particular embodiments of the invention include: 3 -[3-(4-methoxypiperidine)-l -yl-propyl]-lH-indole; 3-[3 -(4-ethoxypiperidine)- 1 -yl-propyl]- lH-indole; 3-[3 -(4-propoxypiperidine)-1 -yl-propyl]- 1H-indole; 3-[3 -(4-butoxypiperidine)-l1-yl-propyl]- lH-indole; 3-[3-(4-methoxymethylpiperidine)-l1-yl-propyl]-1H-indole; 3-[3-(4-ethoxymethylpiperidine)-1 -yl-propyl]-lH-indole; WO 01/83472 3 -[3-(4-propoxymethylpiperidine)- 1-yl-propyl]- 1H-indole; 3-13-(4-methylpiperidine)-1 -yl-propyl]- 1H-indole; 3-[3-(4-ethylpiperidine)-1 -yl-propyl]-1H-indole; 3-13-(4-n-propylpiperidine)- 1-yl-propyl]- 1H-indole; 3-[3-(4-n-butylpiperidine)- 1-yl-propyl]-1H-indole; 3-[2-(4-methoxypiperidine)- 1-yl-ethyl]-1H-indole; 3-[2-(4-ethoxypiperidine)-1 -yl-ethyl]-1H-indole; 3-[2-Q1-propoxypiperidine)-1 -yl-ethyl]- 1H-indole; 3-[2-(4-butoxypiperidine)-1 -yl-ethyl]-l H-indole; 3-[2-(4-methoxymethylpiperidine)- 1 -yl-ethyl]- 1H-indole; 3-[2-(4-ethoxymethylpiperidine)-l1-yl-ethyl]- 1H-indole; 3-[2-(4-propoxymethylpiperidine)-l1-yl-ethyl]-l1I-indole; 3 -[2-(4-methylpiperidine)-1 -yl-ethyl]- 1H-indole; 3 -[2-(4-ethylpiperidine)- 1-yl-ethyl]- 1H-indole; 3-[2-(4-n-propylpiperidine)-l1-yl-.ethyl]-1H-indole; 3 -[2-(4-n-butylpiperidine)-1 -yl-ethyl]- 1H-indole; 3-[2-(4-methoxypiperidine)- 1 -yl-ethyl]-benzo [d]isoxazole; 3-[2-(4-butoxypiperidine)-1 -yl-ethyl] -benzo[d]isoxazole; 3-[3-(4-methoxypiperidine)- 1-yl-propyl]-benzo[d]isoxazole; 3-[3-(4-butoxypiperidine)-1 -yl-propyl]-benzo [d]isoxazole; 3-[4-(4-methoxypiperidine)-l1-yl-butyl]-benzo[d]isoxazole; 3-[4-(4-butoxypiperidine)- 1 -yl-butyl]-benzo[d]isoxazole; 1 -[3-{4-methoxypiperidine)-1 -yl-propyl]- 1H-indole; I -[3-(4-ethoxypiperidine)- 1 -yl-propyl]-1H-indole; 1 -[3-(4-propoxypiperidine)-l1-yl-propyl]- 1H-indole; 1 -[3-(4-butoxypiperidine)-1 -yl-propyl]- 1H-indole; 1 -[3-(4-methoxymethylpiperidine)- 1-yl-propyl]-1H-indole; 1 -[3-.(4-ethoxymethylpiperidine)-l1-yl-propyl]- 1H-indole; 1 -[3-(4-propoxymnethylpiperidine)- 1-yl-propyl]-1H-indole; 1 -[3-(4-methylpiperidine)-l1-yl-propyl]- 1H-indole; 1 -[3-(4-ethylpiperidine)- l-yl-propyl]- 1H-indole; 1 -[3-(4-n-propylpiperidine)-l1-yl-propyl]- 1H-indole; 1 -[3-(4-n-butylpiperidine)-1 -yl-propyl] -1H-indole; 1 -[2-(4-methoxypiperidine)-1 -yl-ethyl] -1H-indole; PCT/US01/13561 WO 01/83472 PCTIUSOI/13561 1 -[2-(4-ethoxypiperidine)- 1-yl-ethyl]-1H-indole; 1 -[2-(4-propoxypiperidine)-1-yl-ethyl]-1H-indole; 1 -[2-(4-butoxypiperidine)-1-yl-ethyl]ll-H-indole; 1 -[2-(4-methoxymethylpipericline)-l1-yl-ethyl] -1H-indole; I -[2-(4-ethoxymethylpiperidine)- 1-yl-ethyl]- 1H-indole; I -[2-(4-propoxymethylpiperidine)-l1-yl-ethyl]- 1H-indole; 1-[2-(4-methylpiperidine)- 1-yl-ethyl]-1H-indole; 1 -[2-(4-ethylpiperidine)- 1-yl-ethyl]- lH-indole; 1 (4-n-propylpiperidine)- 1 -yl-ethyl]- 1H-indole; 1 -[2-(4-n-butylpiperidine)-l1-yl-ethyl]-1H-indole; 1- [3-(4-methoxypiperidine)- l-yl-propyl]- 1H-benzotriazole; 1- [3-(4-ethoxypiperidine)-l1-yl-propyl]-1H-benzotriazole; 1- [3-(4-propoxypiperidine)-l1-yl-propyl]j- H-benzotriazole; 1 -[3-(4-butoxypiperidine)-l1-yl-propyl]-1H-benzotriazole; I -[3-(4-methoxymethylpiperidine)-1 -yl-propyl]- LH-benzotriazole; 1 -[3-(4-ethoxymethylpiperidine)-l1-yl-propyl]- 1H-benzotriazole; I -[3-(4-propoxymethylpiperidine)-l1-yl-propyl] H-benzotriazole; 1 -[3-(4-methylpiperidine)- 1-yl-propyl]-1H-benzotriazole; 1 -(4-ethylpiperidine)-l1-yl-propyl]- lH-benzotriazole; 1 -[3-(4-n-propylpiperidine)-l1-yl-propyl]- 1H-benzotiazole; 1 -[3-(4-n-butylpiperidine)-l1-yl-propyl]- 1H-benzotriazole; 1- [2-(4-methoxypiperidine)-l1-yl-ethyl]- 1H-benzotriazole; 1 -[2-(4-ethoxypiperidine)- 1-yl-ethyl]-1H-benzotriazole; 1 -[2-(4-propoxypiperidine)-l1-yl-ethyl]- 1H-benzotriazole; 1- [2-(4-butoxypiperidine)-l1-yl-ethyl]- 1H-benzotriazole; 1 -[2-(4-methoxymethylpiperidine)-1 -yl-ethyl]- 1H-benzotriazole; 1- [2-(4-ethoxymethylpiperidine)-1 -yl-ethyl]-1H-benzotriazole; 1- [2-(4-propoxymethylpiperidine)- 1-yl-ethyl]- 1H-benzotriazole; 1 -[2-(4-methylpiperidine)-l1-yl-ethyl]- 1H-benzotriazole; 1 -[2-(4-ethylpiperidine)-l1-yl-ethyl] -1H-benzotriazole; 1- [2-(4-n-propylpiperidine)- 1-yl-ethyl]- 1H-benzotriazole; 1- [2-(4-n-butylpiperidine)-l1-yl-ethyl]- 1H-benzotriazole; 1- [4-(4-methoxypiperidine)-l1-yl-butyl]-1H-benzotriazole; 1 -14-(4-ethoxypiperidine)- 1-yl-butyl]- 1H-benzotriazole; 11 WO 01/83472 PCTIUS0 1/13561 I -[4-(4-propoxypiperidine)-l1-yl-butyl]-1H-benzotriazole; I -[4-(4-butoxypiperidine)- 1-yl-butyl]- LH-benzotriazole; 1 -[4-(4-methoxymethylpiperidine)-l1-yl-butyl]- 1H-benzotriazole; I -[4-(4--ethoxymethylpiperidine)- 1-yl-butyl]- 1H-benzotriazole; I -[4-(4-propoxymnethylpiperidine)-l1-yl-butyl]- 1H-benzotriazole; 1 -[4-(4-methylpiperidine)- I1-yl-butyl]- 1H-benzotriazole; 1 -14-(4-ethylpiperidine)-l1-yl-but*Yl- H-benzotriazole; 1 -[4-(4-n-propylpiperidine)-l1-yl-butyl]- 1H-benzotriazole; 1 -[4-(4-n-butylpiperidine)-l1-yl-butyl]-1H-benzotriazole; 2-I[4-(4-rnethylpiperidine)- 1-yl-butyl]-1H-benzotriazole; 2-[4-(4-ethylpiperidine)-l1-yl-butyl]-1H-benzotriazole; 2-[4-(4-n-propylpiperidine)-l1-yl-butyl]- 1H-benzotriazole; 2-[4-(4-n-butylpiperidine)-l1-yl-butyl]- 1H-benzotriazole; 2-[3-(4-methylpiperidine)- 1-yl-propyl]- 1H-benzoimidazole; 2-[3-(4-ethylpiperidine)-l1-yl-propyl]- 1H-benzoimnidazole; 2- [3-(4-n-propylpiperidine)- l-yI-propyl]- 1H-benzoimidazole; 2- [3-(4-n-butylpiperidine)-l1-yI-propyl]- lH-benzoimlidazole; 2- [2-(4-methylpiperidine)- 1-yl-ethyl]- 1H-benzoiniidazole; 2-[2-(4-ethylpiperidine)- 1-yl-ethyl]-1H-benzoitnidazole; 2-[2-(4-n-propylpiperidine)-l1-yl-ethyl]- 1H-benzoimidazole; 2-[2-(4-n-butylpiperidine)- 1-yl-ethyl]-1H-benzoimidazole; 1 1H-benzoimi dazol-2-yl)-4-(4-methylpiperidine)-butanone; LH-benzoimiidazol-2-yl)-4-(4-ethylpiperidine)-butanone; I lH-benzoiikzo1-2-yl)-4-(4-n-propylpiperidine)-butanone; 1 1H-benzoimidazol-2-yl)-4-(4-n-butylpiperidine)-butanone; 1 -(LH-benzoimidazol-2-yl)-3-(4-methylpiperidine)-propanone; 1 1H-benzoimi dazol-2-yl)-3-(4-ethylpiperidine)-propanone; 1 lH-benzoimidazol-2-yl)-3-(4-n-propylpiperidine)-propanone; 1 H-benzoimnidazol-2-yl)-3-(4-n-butylpiperidine)-propanone; 3-[3-(4-methylpiperidine)-l1-yl-propyl]-1H-indazole; 3 -[3-(4-ethylpiperidine)-l1-yl-propyl]- 1H-indazole; 3- [3-(4-n-propylpiperidine)- 1-yl-propyl]- 1H-indazole; 3- [3-(4-n-butylpiperidine)- l-yl-propyl] H-indazole; 1 -(3-benzofuran-3-yl-propyl)-4-methyl-piperidine; WO 01/83472 1 -(3-benzofuran-3-yl-propyl)-4-ethyl-piperidine; 1 -benzofuran-3-yl-propyl)-4-n-propyl-pip eridine; 1 -(3-benzofuran-3-yl-propyl)-4-n-butyl-piperidine; 3-(3-(4-methylpiperidine)-l1-yl-propyl)-benzo [d]isothiazole; 3-(3-(4-ethylpiperidine)-1 -yl-propyl)-benzolldjisothiazole; 3-(3-(4-n-propylpiperidine)-l1-yl-propyl)-benzo[dlisothiazole; 3-(3-(4-n-butylpiperidine)- 1 -yl-propyl)-benzo[d]isothiazole; 1 -[3-(4-methylpiperidine)-1 -yl-propyl]- 1H-benzoimidazole; 1- [3-(4-ethylpiperidine)- l-yl-propyl]- 1H-benzoimidazole; 1 -[3-.(4-n-propylpiperidine)-l1-yl-propyl]- 1H-benzoimidazole; 1- [3-(4-n-butylpiperidine)-l1-yl-propyl]- 1H-benzoirnidazole; 1 (4-methylpiperidine)-l1-yl-ethyl]- LH-benzoirnidazole; 1 -[2-(4-ethylpiperidine)-1 -yl-ethyl]- 1H-benzoimaidazole; 1 -12-(4-n-propylpiperidine)-l1-yl-ethyl]- 1H-benzoim-idazole; 1 -[2-(4-n-butylpiperidine)-1 -yl-ethyl]- 1H-benzoimidazole; 1 -[3-(4-methylpiperidine)-1 -yl-propyl] H-indazole; 1 -[3-(4-ethylpiperidine)- 1-yl-propyl]- 1H-indazole; 1- [3-(4-.n-propylpiperidine)-l1-yl-propyl]- LH-indazole; 1 -[3-(4-n-butylpiperidine)- 1 -yl-propyl]- 1H-indazole; 2-[4-(4.-methylpiperidine)-l1-yl-butyl]- 1H-benzothiazole; 2-[4-(4-ethylpiperidine)-l1-yl-butyl]- 1H-benzothiazole; 2- [4-(4-n-propylpiperidine)-l1-yl-butyl] H-benzothiazole;, 2-[4-(4-n-butylpiperidine)-l1-yl-butyl]- 1H-benzothiazole; 2- [3-(4-methylpiperidine)-1 -yl-propyl]- 1H-benzothiazole;, 2- [3-(4-ethylpiperidine)-l1-yl-propyl]- 1H-benzothiazole; 2- [3-(4-n-propylpiperidine)-l1-yl-propyl]- 1H-benzothiazole;, 2-[3-(4-n-butylpiperidine)-l1-yl-propylj- 1H-benzothiazole; 2-[2-(4-methylpiperidine)-l1-yl-ethyl]- 1H-benzothiazole; 2-[2-(4-ethylpiperidine)-l1-yl-ethyl]-1H-benzothiazole; 2-[2-(4-n-propylpiperidine)-1 -yl-ethyl]- 1H-benzotbiazole; 2-[2-(4-n-butylpiperidine)-l1-yl-ethyl]- 1H-benzotbiazole;, 2-[3-(4-methylpiperidine)- 1 -yl-propyl]-benzooxazole; 2-[3-(4-ethylpiperidine)-l1-yl-propyl]-benzooxazole; 2-[3-(4-n-propylpiperidine)-l1-yl-propyl]-benzooxazole; 13 PCT/US01/13561 WO 01/83472 PCTIUS01/13561 2- [3-(4-n-butylpiperidine)-l1-yl-propyl]-benzooxazole; 2-[2-(4-methylpiperidine)- 1-yl-ethyl]-benzooxazole; 2-[2-(4-ethylpiperidine)-l1-yl-ethyl]-benzooxazole; 2-2(--rpliprdn)ly-thlIezoaoe 2-[2-(4-n-proylpiperidine)-lI-yl-ethyl]-benzooxazole; N 2-[2-(4-n-btylpiperidine)-l1-yl-tyl]-benzooxazole; c-i 2-[4-(4-ethylpiperidine)--yl-butyl]-benzooxazole; 2- [4-(4-ethroylpiperidine)- -yl-butyl]-benzooxazole; 00I 2-[4-(4-n-propylpiperidine-1-yl-butyl]-benzooxazole; 0 -4(--uypprdn) y-uy]-ezoaoe N- 10 4,5-difluoro-2-(3-(4-n-butylpiperidine- 1-yl)-propyl)- 1H-benzoimidazole; 6-fluoro-5-nito-2-(3-(4-n-butylpiperidine- 1-yl)-propyl)- 1H-benzoimidazole; N- 5-tert-butyl-2-(3 -butylpiperidine- 1-yl)-propyl)- 1H-benzoixnidazole; 5-chloro-6-methyl-2-(3-(4-n-butylpiperidine-1 -yl)-propyl)- 1H-benzoimiidazole; 4,6-difluoro-2-(3-(4-n-butylpiperidine- 1-yl)-propyl)- 1H-benzoimnidazole; 2-(3-(4-n-butylpiperidine)-1 -yl-propyl)- 1H-iniidazo[4,5-c]pyridine; 8-(3-(4-n-butylpiperidine)-l1-yl-propyl)-9H-purine; 7-(3-(4-n-butylpiperidine)- 1 -yl-propyl)-3,8-diydro-inidazo [4',5':3,4]benzo 1,2d][1,2,3]triazole; 2-(3 -(4-n-butylpiperidine)- 1-yl-propyl)-3a,4,5 ,6,7,7a-hexahydro- 1H-benzoiniidazole; 3-methyl-i -(3-(4-n-butylpiperidine)- I-yl-propyl)-IH-indole; 5-bromo-l1-(3-(4-n-butylpiperidine)-l1-yl-propyl)- 1H-indole; 3-formnyl- 1-(3-(4-n-butylpiperidine)-1 -yl-propyl)- IH-indole; 7-bromo-l1-(3-(4-n-butylpiperidine)-1 -yl-propyl)- 1H-indole; 3-(3-(4-n-butylpiperidine)-l1-yl-propyl)-benzo[d]isoxazole; 4-nitro-2-(3-(4-n-butylpiperidine)- 1-yl-propyl)- 1H-benzoimidazole; 5-nitro-2-(3-(4-n-butylpiperidine)-l1-yl-propyl)- 1H-benzoim-idazole 4-hydroxy-2-(3-(4-nz-butylpiperidine)- 1 -yl-propyl)- 1H-benzoiniidazole; 4-methyl-2-(3-(4-n-butylpiperidine)- I-yl-propyl)- 1H-benzoimidazole; 3-(2-(4-n-Butylpiperidine)-ethoxy)-7-methyl-benzo [d]isoxazole; 1 -(3-(4-Methylpiperidine)-l1-yl-propyl)- lH-indazole; 1 -(4-Pentylpiperidine)-1 -yl-propyl)- LH-indazole; 1 -(4-Propylpiperidine)-1 -yl-propyl)-lH-; 1 -(3-(4-(3-Methyl-butyl)-piperidine)- l-yl-propyl)- 1H-indazole 1 -(4-Pentylidene-piperidine)- I -yl-propyl)- 1H-indazole; WO 01/83472 PCT/US01/13561 1-(3-(4-Propylidene-piperidine)- 1-yl-propyl)- LH-indazole 1-Benzo [b]thiophen-2-yl-4-(4-butylpiperidin- 1-yl)-butan-1 -one 4-(4-Butylpiperidin- 1 -yl)-l -(3-methyl-benzofuran-2-yl)-butan- 1-one; 4-(4-Butylpiperidin- 1-yl)-l -(5-fluoro-3-methyl-benzollb]thiophen-2-yl)-butan- 1 -one; 1-Benzofuran-2-yl-4-(4-butylpiperidin- 1 -yl)-butan- 1 -one; N- 1-(3 -Bromo-benzo[b]tbiophen-2-yl)-4-(4-butylpiperidin- 1 -yl)-butan- 1 -one 1-(3-Benzo[b]thiophen-2-yl-propyl)-4-butylpiperidine; N- 1 enzofuran-2-yl-propyl)-4-butylpiperidine; M04Btl [-3mty-ezoua--l-rpl-ieiie 0 4-Butyl- 1-[3-(5-lo3-methyl-benzo llbhiphn-2-yl)-propyl] -piperidine; 104Btl c3(-loo--ehlb-obtipe-2yipoy]-ieiie 2-(3-Iodo-propyl)-benzo [b]thiophene; c-i 1-(3-Benzo[b]thiophen-2-yl-propyl)-4-methylpiperidine 1 -(3-Benzollb]thiophen-2-yl-propyl)-4-benzylpiperidin-e; 1-(3-Benzo[b]thiophen-2-yl-propyl)-4-(2-methoxy-pheniyl)-piperidine; 2-(3-Bromopropyl)-2H-benzotriazole; 2-[3-(4-Butylpiperidin- 1-yl)-propyl]-2H-benzotriazole; 1-(3-Bromopropyl)-lH-benzotriazole; 1-[3-(4-Butylpiperidin- 1-yl)-propyl]- 1H-benzotriazole; 1 -[3-(4-Butylpiperidin. l-yl)-propyl]- 1H-indole-3-carbaldehyde; {11- [3-(4-Butylpiperidin-1I-yl)-propyl]- 1H-indol-3-yl} -methanol; 1 -[3-(4-Butylpiperidin- 1-yl)-propyl] -2-phenyl- 1H-benzoinmidazole; 1-[3-(4-Butylpiperidin- 1-yl)-propyl]-3-cbloro- 1H-indazole; 1-[3-(4-Butylpiperidin- 1-yl)-propyl]-6-nitro- 1H-indazole; Benzo[d]isoxazol-3-ol; 3-(2-Chloroethoxy)-benzo[d]isoxazole; 3-[2-(4-Butylpiperidin- 1 -yl)-ethoxy]-benzo[d]isoxazol; 3-(1H-Indol-3-yl)-propan-I1-ol; 3-[3-(4-Butyl-piperidin- 1-yl)-propyl]- LH-indole hydrochloride; 4-(4-Butylpiperidine-1I-yl)-butyric acid methyl ester; 2- [3-(4-Butylpiperidin- 1-yl)-propyl]-1 -methyl- 1H-benzimi dazole; 1H-Indazole-3-carboxylic acid (2-(4-butylpiperidin)-l1-yl-ethyl)-amide; 1- [3 -(4-Butylpiperidin- 1 -yl)-propyl]-5 -nitro-1IH-indazole; 2-[3-(4-butylpiperidin- 1-yl)-propyl]-5-nitro-2H-indazole; 1-[3-(4-Butyl-piperidin-1-yl)-propyl]-2-methyl- 1H-indole; WO 01/83472 PCTIUSOI/13561 1 -{I1 -[3-(4-Butyl-piperidin- 1 -yl)-propyl]- 1H-indol-3-yl} -ethanone; 1-[3-(4-Butyl-piperidin- 1-yl)-propyl]- 1H-indol-3-yl} -acetonitrile; 1- [3-(4-Butyl-pipericlin-1 -yl)-propyl]-1H-indole-3-carbonitrile; 1 -[3-(4-Butyl-piperidin- 1-yl)-propyl]-5,6-dimethyl- 1H-benzoimnidazole; 5 1- [3-(4-Butyl-piperidin-1 -yl)-propyl]-5(6)-dimnethyl- 1H-benzoimidazole; 1- [3-(4-Butyl-piperidin-1-yl)-propyl]-5-methoxy- lH-benzoimidazole; {I 1- [3-(4-Butyl-piperidin- 1l-yl)-propyl]- 1H-benzoimidazol-2-yl} -methanol; 1 -[3-(4-Butyl-piperidin-1 -yl)-pro pyl]-2-trifuoromethyl- 1H-benzoimidazole; 0_ (2-Trimethylstannanyl-phenyl)-carbamic acid tert-butyl ester; [2-(4-Chloro-butyryl)-phenyl]-carbamic acid tert-butyl ester; {2-[4-(4-Butyl-piperidine-1 -yl)-butyryl]-phenyl} -carbamic acid tert-butyl ester; 3-[3-(4-Butyl-piperidine- 1-yl)-propyl]-1H-indazole, HCl; 3- [3-(4-Butyl-piperidine- 1-yl)-propyl]-5-nitro- 1H-indazole; 3-[3-(4-Butyl-piperidine- 1-yI)-propyl]-5,7-dinitro- LH-indazole; 4-(4-.Butyl-piperidin-1 -yl)-l -(2-metylsulfanyl-phenyl)-butan- 1-one; 3 -[3-(4-Butyl-piperidin- 1-yl)-propyl]-benzo[d]isothiazole; 3- [3-(4-Butyl-piperidin- 1-yl)-propyl]-5-methoxy- 1H-indazole; 3- [3-(4-Butyl-piperidin- 1-yl)-propyl]-4-methoxy-1H-indazole 3- [3-(4-Butyl-piperidin- 1-yl)-propyl]-6-methoxy- 1H-indazole; 3- [3-(4-Butyl-piperidin- 1 -yl)-propyl]- 1H-indazole-4-ol (5 3Mff5 1); 3-[3-(4-Butyl-piperidin- 1-yl)-propyl]- IH-indazole-6-ol (5 3MF52); and 3- [3-(4-Butyl-piperidin- 1-yl)-propyl]- The present invention further provides pharmaceutical compositions comprising an effective amount of at least one compound of the invention, inclusive of all compounds within the scope of formula In general, compounds of the present invention are active at cholinergic, specifically muscarinic receptors. Preferred compounds share the common property of acting as agonists at the ml or m4 muscarinic receptor subtypes, or both. In a preferred embodiment, the compounds of the present invention are selective towards the ml, m4, or both the ml and m4 subtypes of muscarinic receptors, the compounds have less or substantially no effect on other subtypes of the muscarinic receptors. Typically, the ml and/or m4 selective compounds of the invention have no effect on other related receptors, including G-protein coupled receptors, serotonin, histamine, dopamine or adrenergic receptors. The 16 WO 01/83472 PCT/US01/13561 invention provides compounds that are selective as agonists at either the ml or the m4 subtype as well as compounds that are agonists at both the ml and m4 receptor subtypes. In 1 one embodiment, the compounds of the present invention have less or substantially no effect S on m2 and m3 subtypes ofmuscarinic receptors. In another embodiment, the compounds of the present invention have less or substantially no effect on m2, m3, m4, and m5 subtypes of C muscarinic receptors.
The compounds of present invention typically have therapeutic effects and can be
C
used to treat or alleviate symptoms of disease conditions associated with cholinergic 00 O receptors such as cognitive impairment, forgetfulness, confusion, memory loss, attentional C 10 deficits, deficits in visual perception, depression, pain, sleep disorders, psychosis, Shallucinations, aggressiveness, paranoia, and increased intraocular pressure. The disease C condition may result from dysfunction, decreased activity, modification, mutation, truncation, or loss of cholinergic receptors, especially muscarinic receptors, as well as from reduced levels of acetylcholine.
The compounds of present invention can also be used to treat diseases, agerelated cognitive decline, Alzheimer's disease, Parkinson's disease, Huntington's chorea, Friederich's ataxia, Gilles de la Tourette's Syndrome, Down Syndrome, Pick disease, dementia, clinical depression, age-related cognitive decline, attention-deficit disorder, sudden infant death syndrome, and glaucoma.
The compounds of the present invention have the ability to increase cholinergic receptor activity or activate cholinergic receptors. Cholinergic receptor activity includes signaling activity or any other activity that is directly or indirectly related to cholinergic signaling or activation. The cholinergic receptors include muscarinic receptors, especially the ml or m4 subtype ofmuscarinic receptors. The muscarinic receptor can be, for example, in the central nervous system, peripheral nervous system, gastrointestinal system, heart, endocrine glands, or lungs. The muscarinic receptor can be a wild-type, truncated, mutated, or modified cholinergic receptor. Kits comprising the compounds of the present invention for increasing cholinergic receptor activity or activating cholinergic receptors are also contemplated by the present invention.
The system containing the cholinergic receptor may, for example, be a subject such as a mammal, non-human primate or a human. The system may also be an in vivo or in vitro experimental model, such as a cell culture model system that expresses a cholinergic receptor, a cell-free extract thereof that contains a cholinergic receptor, or a purified receptor.
Non-limiting examples of such systems are tissue culture cells expressing the receptor, or 17 WO 01/83472 PCT/US01/13561 extracts or lysates thereof. Cells that may be used in the present method include any cells capable of mediating signal transduction via cholinergic receptors, expecially the ml Smuscarinic receptor, either via endogenous expression of this receptor (certain types of Sneuronal cells lines, for example, natively express the ml receptor), or such as following introduction of the an exogenous gene into the cell, for example, by transfection of cells with plasmids containing the receptor gene. Such cells are typically mammalian cells (or other eukaryotic cells, such as insect cells or Xenopus oocytes), because cells of lower life forms generally lack the appropriate signal transduction pathways for the present purpose.
S Examples of suitable cells include: the mouse fibroblast cell line NIH 3T3 (ATCC CRL 1 10 1658), which responds to transfected ml receptors by increased growth; RAT 1 cells (Pace et 0al., Proc. Natl. Acad. Sci. USA 88:7031-35 (1991)); and pituitary cells (Vallar et al., Nature 0C 330:556-58 (1987)). Other useful mammalian cells for the present method include but are not limited to HEK 293 cells, CHO cells and COS cells.
The compounds of the present invention also have the ability to reduce intraocular pressure and therefore can be used in the treatment of such diseases as glaucoma. Glaucoma is a disease in which an abnormality is observed in the circulation-control mechanism of the aqueous humor filling up the anterior chamber, the space formed between the cornea and the lens. This leads to an increase in the volume of the aqueous humor and an increase in intraocular pressure, consequently leading to visual field defects and even to loss of eyesight due to the compulsion and contraction of the papillae of the optic nerve.
The present invention also pertains to the field of predictive medicine in which pharmacogenomics is used for prognostic (predictive) purposes. Pharmacogenomics deals with clinically significant hereditary variations in the response to drugs due to altered drug disposition and abnormal action in affected persons (see Eichelbaum, Clin Exp Pharmacol. Physiol., 23:983-985 (1996) and Linder, Clin. Chem. 43:254-66 (1997)). In general, two types of pharmacogenetic conditions can be differentiated: genetic conditions transmitted as a single factor altering the way drugs act on the body (altered drug action) or genetic conditions transmitted as single factors altering the way the body acts on drugs (altered drug metabolism). These pharmacogenetic conditions can occur as naturallyoccurring polymorphisms.
One pharmacogenomics approach to identifying genes that predict drug response, known as "a genome-wide association", relies primarily on a high-resolution map of the human genome consisting of known gene-related markers a "bi-allelic" gene marker map that consists of 60,000-100,000 polymorphic or variable sites on the human genome, WO 01/83472 PCT/US01/13561 each of which has two variants). Such a high-resolution genetic map can be compared to a map of the genome of each of a statistically significant number of patients taking part in a SPhase H/III drug trial to identify markers associated with a particular observed drug response Sor side effect. Alternatively, such a high resolution map can be generated from a 5 combination of some ten-million known single nucleotide polymorphisms (SNPs) in the human genome. As used herein, a "SNP" is a common alteration that occurs in a single nucleotide base in a stretch of DNA. For example, a SNP may occur once per every 1,000 bases of DNA. A SNP may be involved in a disease process although the vast majority may c 0 not be disease-associated. Given a genetic map based on the occurrence of such SNPs, individuals can be grouped into genetic categories depending on a particular pattern of SNPs in their individual genome. In such a manner, treatment regimens can be tailored to groups of genetically similar individuals, taking into account traits that may be common among such genetically similar individuals.
Alternatively, a method termed the "candidate gene approach" can be utilized to identify genes that predict drug response. According to this method, if a gene that encodes a drug's target is known a protein or a receptor of the present invention), all common variants of that gene can be identified in the population. It can be readily determined by standard techniques a particular version of the gene is associated with a particular drug response.
Alternatively, a method termed "gene expression profiling" can be utilized to identify genes that predict drug response. For example, the gene expression of an animal dosed with a drug a compound or composition of the present invention) can give an indication whether gene pathways related to toxicity have been turned on.
Information generated from more than one of the above pharmacogenomics approaches can be used to determine appropriate dosage and treatment regimens for prophylactic or therapeutic treatment of an individual. This knowledge, when applied to dosing or drug selection, can avoid adverse reactions or therapeutic failure and thus enhance therapeutic or prophylactic efficiency when treating a subject with a compound or composition of the invention, such as a modulator identified by one of the exemplary screening assays described herein. These approaches can also be used to identify novel candidate receptor or other genes suitable for further pharmacological characterization in vitro and in vivo.
Accordingly, another aspect of the present invention features methods and kits for identifying a genetic polymorphism predisposing a subject to being responsive to a WO 01/83472 PCT/US01/13561 compound described herein. The method comprises administering to a subject an effective amount of a compound; identifying a responsive subject having an ameliorated disease CI condition associated with a cholinergic receptor; and identifying a genetic polymorphism in the responsive subject, wherein the genetic polymorphism predisposes a subject to being 5 responsive to the compound. Identifying a genetic polymorphism in the responsive subject cN can be performed by any means known in the art including the methods discussed above. In addition, a kit to be used for identifying a genetic polymorphism predisposing a subject to Sbeing responsive to a compound provided in the present invention comprises the compound 00 of the present invention, and preferably reagents and instructions for performing a genetic cN 10 polymorphism test.
SIn one embodiment, a subject can be tested for a known polymorphism that CI predisposes the subject to being responsive to the compound of the present invention. The presence of the polymorphism indicates that the subject is suitable for treatment.
In preferred embodiments, the compounds of the present invention can be represented as shown in formulae (IIIa-e):
RR
i o R4 Y- (CH2)p- Z-N Rio' (LMa)
RR
R3 (CH2)p-- N R( Jl (nrb) WO 01/83472 PCTfUSOI/13561 (MfC) WO 01/83472 PCT/US01/13561 R Ri SR2 N R o
R
4 00 (IId) 0 Cl R2 N 0 R3 O Y-(CH2)p- Z-N R' RW3
R
4 (Ifle) where W 1 is O, S, or NR 5
W
2 is CR 5 or N, and W 3 is CR 5 or N, or wherein W 3 is NR 5 S or O, or a pharmaceutically acceptable salt, ester or prodrug thereof.
Compounds of the present invention may be prepared by methods analogous to the methods disclosed in G.B. Patent No. 1,142,143 and U.S. Patent No. 3,816,433, each of which are incorporated herein by reference. Ways of modifying those methods to include other reagents etc. will be apparent to those skilled in the art. Thus, for instance, compounds of formula (III, IMb where W 1 is NR 5 may be prepared as shown in the following reaction scheme.
WO 01/83472 PCT/US01/13561 OHC-(CH 2 )p-Y
R
1 HN Rio /R2 HN N SRio' N R3 R5 R 4
(XI)
(xN o'o [H C- 00 N R R 3 10 4
(CH
2 CH2 -N 1 RlO,
(XX)
The starting compound having formula may be prepared by general methods of organic synthesis. For general methods of preparing compounds of formula reference is made to Fuller, et al., J. Med. Chem. 14:322-325 (1971); Foye, et al., J. Pharm.Sci. 68:591- 595 (1979); Bossier, et al., Chem. Abstr. 66:46195h and 67:21527a (1967); Aldous, J. Med.
Chem. 17:1100-1111 (1974); Fuller, et al., J. Pharm. Pharmacol. 25:828-829 (1973); Fuller, et al., Neuropharmacology 14:739-746 (1975); Conde, et al., J Med. Chem. 21:978-981 (1978); Lukovits, et al., Int. J Quantum Chem. 20:429-438 (1981); and Law, Cromatog.
407:1-18 (1987), the disclosures of which are incorporated by reference herein in their entirety. Compounds of formula XI are prepared, for example, as described in Darbre, et al., Helv. Chim. Acta, 67:1040-1052 (1984) or Ihara, etal., Heterocycles, 20:421-424 (1983), also incorporated herein by reference. The radiolabelled derivatives having formula (XX) may be prepared by, for example, using a tritiated reducing agent to form the reductive amination or by utilizing a 14C-labelled starting material.
Compounds of formula (XXII) can be used to prepare the compounds of formula Compounds of formula (XXII) are prepared, for example, as described in Ishii, et al., J. Org.
Chem. 61:3088-3092 (1996) or Britton, et al. Bioorg. Med. Chem. Lett. 9:475-480 (1999), also incorporated herein by reference. Where the starting compound includes a carbonyl group, the compound having the formula (XXII) may be reduced with, for example, A1H 3 23 WO 01/83472 PCT/US01/13561 diborane:methyl sulfide or other standard carbonyl reducing reagents to produce the ligand having the formula (XXX).
(XXII)
(XXX)
The receptor ligands having formula (XXXII) may be prepared by nucleophilic displacement of a suitable nucleophuge by the amino derivative (XXXI). Examples of nucleophuges, which may be used for this purpose, include halides such as I, Cl, Br, or tosylate or mesylate.
WO 01/83472 PCT/US01/13561 00 r EN(CH2)p-Y
R
1 +p Rio' P3 N^Y R 5 When Y in formula (XX) is this compound may be prepared from oxidationR4 of a secondary alcohol with, for example, pyridiniumn chioroebromate, N-chlorosuccinimide, CrO 3
-H
2 S0 4 or via the Swemn or Dess-Martin procedures nickel.
When Y in formula (XXX) is this compound may be prepared by arylation of an alcohol with aryihalides under, for example, Cu catalysis.
When Y in formula (XXX) is this compound may be prepared by arylation of a thiol with arylhalides under, for example, Cu catalysis.
(N0 /Y (C2)p-Y 2 y^ P3 When Y in formula (XXX) is this compound may be prepared byom oxidaction of tha secorrespondaying ketone by catalcohol with, for example, pyridinium chlorocby the use ofromate, NaB-chlor by thosuccinimide, use of LiA1H 4 Cr3-H215 Suitable pharmaceutically acceptable salts of the compounds of this invention include- nickel.
Whacid addition salts which may, for exampleXX) is this compound may be formprepared by mixing a soluarylation of the compound according to hol withe invention with a solution of a pharmaceutically acceptable acid such as Whydrochloric acid, sformulphuric acid, fumaric acid, maleic acid, succinic acid, acetic arylation of ad, benzthio with arylhcid, oxalides under, fcitric acid, tartaric acid,Cu catalysrbonic acid or phosphoric acid.s.
FurtWhen Y in formula (XXX) is -CHOH-, thisthe compounds of the invention cary may be prepared by reduction of the corresponding ketone by catalytic hydrogenation or by the use of NaBI-I4 or by the use of LiA1H4i.
Suitable pharmaceutically acceptable salts of thereof may include alkali metal salts, sodium orn include acid addition salts which may, for example, be formed by mixing a solution of the compound according to the invention with a solution of a pharmaceutically acceptable acid such as hydrochloric acid, sulphuric acid, fumaric acid, maleic acid, Succinic acid, acetic acid, benzoic acid, oxalic acid, citric acid, tartaric acid, carbonic acid or phosphoric acid.
Furthermore, where the compounds of the invention carry an acidic moiety, suitable pharmaceutically acceptable salts thereof may include alkali metal salts, sodium or potassium salts; alkaline earth metal salts, calcium or magnesium salts; and salts formed WO 01/83472 PCT/US01/13561 with suitable organic ligands, quaternary ammonium salts. Examples of pharmaceutically acceptable salts include the acetate, benzenesulfonate, benzoate, .1 bicarbonate, bisulfate, bitartrate, borate, bromide, calcium, carbonate, chloride, clavulanate, citrate, dihydrochloride, fumarate, gluconate, glutamate, hydrobromide, hydrochloride, hydroxynaphthoate, iodide, isothionate, lactate, lactobionate, laurate, maleate, mandelate, mesylate, methylbromide, methylnitrate, methylsulfate, nitrate, N-methylglucamine ammonium sal, oleate, oxalate, phosphate/diphosphate, salicylate, stearate, sulfate, succinate, Stannate, tartrate, tosylate, triethiodide and valerate salt.
00 SThe present invention includes within its scope prodrugs of the compounds of this 0C 10 invention. In general, such prodrugs are derivatives of the compounds of this invention, Swhich are readily convertible in vivo into the required compound. Conventional procedures C-l for the selection and preparation of suitable prodrug derivatives are described, for example, in Design ofProdrugs, (Bundgaard, ed. Elsevier, 1985). Metabolites of these compounds include active species produced upon introduction of compounds of this invention into the biological milieu.
Where the compounds according to the invention have at least one chiral center, they may exist as a racemate or as enantiomers. It should be noted that all such isomers and mixtures thereof are included in the scope of the present invention. Furthermore, some of the crystalline forms for compounds of the present invention may exist as polymorphs and as such are intended to be included in the present invention. In addition, some of the compounds of the present invention may form solvates with water hydrates) or common organic solvents. Such solvates are also included in the scope of this invention.
Where the processes for the preparation of the compounds according to the invention give rise to mixtures of stereoisomers, such isomers may be separated by conventional techniques such as preparative chiral chromatography. The compounds may be prepared in racemic form, or individual enantiomers may be prepared either by stereoselective synthesis or by resolution. The compounds may, for example, be resolved into their component enantiomers by standard techniques, such as the formation of diastereomeric pairs by salt formation with an optically active acid, such as (-)-di-p-toluoyl-d-tartaric acid and/or (+)-di-p-toluoyl-l-tartaric acid followed by fractional crystallization and regeneration of the free base. The compounds may also be resolved by formation of diastereomeric esters or amides, followed by chromatographic separation and removal of the chiral auxiliary.
During any of the processes for preparation of the compounds of the present invention, it may be necessary and/or desirable to protect sensitive or reactive groups on any WO 01/83472 PCTIUS01/13561 of the molecules concerned. This may be achieved by means of conventional protecting groups, such as those described in Protective Groups in Organic Chemistry (McOmie ed., N- Plenum Press, 1973); and Greene Wuts, Protective Groups in Organic Synthesis (John Wiley Sons, 199 1) The protecting groups may be removed at a convenient subsequent stage using methods known from the art.
c-i Compounds of the present invention may be administered in any of the foregoing compositions and according to dosage regimens established in the art whenever specific N pharmacological modification of the activity of muscarinic receptors is required.
OC) The present invention also provides pharmaceutical compositions comprising one or N- 10 more compounds of the invention together with a pharmaceutically acceptable diluent or excipient. Preferably such compositions are in unit dosage forms such as tablets, pills, N- capsules (including sustained-release or delayed-release formulations), powders, granules, elixirs, tinctures, syrups and emulsions, sterile parenteral solutions or suspensions, aerosol or liquid sprays, drops, ampoules, auto-injector devices or suppositories; for oral, parenteral intravenous, intramuscular or subcutaneous), intrantasal, sublingual or rectal administration, or for administration by inhalation or insufflation, and may be formulated in an appropriate manner and in accordance with accepted practices such as those disclosed in Remington 's Pharmaceutical Sciences (Gennaro, ed., Mack Publishing Co., Easton PA, 1990). Alternatively, the compositions may be in sustained-release form suitable for once-weekly or once-monthly administration; for example, an insoluble salt of the active compound, such as the decanoate salt may be adapted to provide a depot preparation for intramuscular injection. The present invention also contemplates providing suitable topical formulations for administration to, eye, skin or mucosa.
For instance, for oral administration in the form of a tablet or capsule, the active drug component can be combined with an oral non-toxic pharmaceutically acceptable inert carrier such as ethanol, glycerol, water and the like. Moreover, when desired or necessary, suitable binders, lubricants, disintegrating agents, flavoring agents and coloring agents can also be incorporated into the mixture. Suitable binders include, without limitation, starch, gelatin, natural sugars such as glucose or beta-lactose, natural and synthetic gums such as acacia, tragacanth or sodium alginate, carboxymethylcellulose, polyethylene glycol, waxes and the like. Lubricants used in these dosage forms include, without limitation, sodium oleate, sodium stearate, magnesium stearate, sodium benzoate, sodium acetate, sodium chloride and the like. Disintegrators include, without lim-itation, starch, methyl cellulose, agar, bentonite, xanthan gum and the like.
W001/83472 PCTIUSOI/13561 For preparing solid compositions such as tablets, the active ingredient is mixed with a suitable pharmaceutical excipient, such as the ones described above, and other pharmaceutical diluents, water, to form a solid preformulation composition containing a homogeneous mixture of a compound of the present invention, or a pharmaceutically acceptable salt thereof. By the term "homogeneous" is meant that the active ingredient is N- dispersed evenly throughout the composition so that the composition may be readily subdivided into equally effective unit dosage forms such as tablets, pills and capsules. The solid preformulation composition may then be subdivided into unit dosage forms of the type 00 described above containing from about 0.01 to about 50 mg of the active ingredient of the present invention. The tablets or pills of the present composition may be coated or otherwise compounded to provide a dosage form affording the advantage of prolonged action. For N- example, the tablet or pill can comprise an inner core containing the active compound and an outer layer as a coating surrounding the core. The outer coating may be an enteric layer, which serves to resist disintegration in the stomach and permits the inner core to pass intact into the duodenum or to be delayed in release. A variety of materials can be used for such enteric layers or coatings, such materials including a number of polymeric acids and mixtures of polymeric acids with conventional materials such as shellac, cetyl alcohol and cellulose acetate.
The liquid forms in which the present compositions may be incorporated for administration orally or by injection include aqueous solutions, suitably flavored syrups, aqueous or oil suspensions, and flavored emulsions with edible oils such as cottonseed oil, sesame oil, coconut oil or peanut oil, as well as elixirs and similar pharmaceutical carriers.
Suitable dispersing or suspending agents for aqueous suspensions include synthetic and natural gums such as tragacanth, acacia, alginate, dextran, sodium carboxymethylcellulose, gelatin, methylcellulose or polyvinyl-pyrrolidone. Other dispersing agents, which may be employed, include glycerin and the like. For parenteral administration, sterile suspensions and solutions are desired. Isotonic preparations, which generally contain suitable preservatives, are employed when intravenous administration is desired. The compositions can also be formulated as an ophthalmic solution or suspension formation, eye drops, for ocular administration Compounds of the present invention may be administered in a single daily dose, or the total daily dosage may be administered in divided doses two, three or four times daily.
Furthermore, compounds of the present invention may be administered in intranasal form via topical use of suitable intranasal vehicles or via transdermal routes, using forms of 28 WO 01/83472 PCT/US 01/13561 transdermal skin patches that are well known to persons skilled in the art. To be administered in the form of a transdermal delivery system, the dosage administration will be continuous C- rather than intermittent throughout the dosage regimen.
SThe dosage regimen utilizing the compounds of the present invention is selected in d 5 accordance with a variety of factors including type, species, age, weight, sex and medical c1 condition of the patient; the severity of the condition to be treated; the route of administration; the renal and hepatic function of the patient; and the particular compound Cc employed. A physician or veterinarian of ordinary skill can readily determine and prescribe 00 the effective amount of the drug required to prevent, counter or arrest the progress of the Ci 10 disease or disorder, which is being treated.
The daily dosage of the products may be varied over a wide range from 0.01 to 100 Ci mg per adult human per day. For oral administration, the compositions are preferably provided in the form of tablets containing 0.01, 0.05, 0.1, 0.5, 1.0, 2.5, 5.0, 10.0, 15.0, 25.0 or 50.0 mg of the active ingredient for the symptomatic adjustment of the dosage to the patient to be treated. A unit dose typically contains from about 0.001 mg to about 50 mg of the active ingredient, preferably from about 1 mg to about 10 mg of active ingredient. An effective amount of the drug is ordinarily supplied at a dosage level of from about 0.0001 mg/kg to about 25 mg/kg of body weight per day. Preferably, the range is from about 0.001 to 10 mg/kg of body weight per day, and especially from about 0.001 mg/kg to 1 mg/kg of body weight per day. The compounds may be administered, for example, on a regimen of 1 to 4 times per day.
Compounds according to the present invention may be used alone at appropriate dosages defined by routine testing in order to obtain optimal pharmacological effect on a muscarinic receptor, in particular the muscarinic ml or m4 receptor subtype, while minimizing any potential toxic or otherwise unwanted effects. In addition, co-administration or sequential administration of other agents that improve the effect of the compound may, in some cases, be desirable.
The pharmacological properties and the selectivity of the compounds of this invention for specific muscarinic receptor subtypes may be demonstrated by a number of different assay methods using, for example, recombinant receptor subtypes, preferably of the human receptors as available, conventional second messenger or binding assays. A particularly convenient functional assay system is the receptor selection and amplification assay disclosed in U.S. Patent No. 5,707,798, which describes a method of screening for bioactive compounds by utilizing the ability of cells transfected with receptor DNA, coding for the WO 01/83472 PCT/US01/13561 different muscarinic subtypes, to amplify in the presence of a ligand of the receptor. Cell amplification is detected as increased levels of a marker also expressed by the cells.
C The invention is disclosed in further detail in the following examples, which are not in p. any way intended to limit the scope of the invention as claimed.
Cl Examples Methods of preparation c The compounds in accordance with the present invention may be synthesized by 00 methods described below, or by modification of these methods. Ways of modifying the C 10 methodology include, for example, temperature, solvent, reagents etc, will be apparent to Sthose skilled in the art.
Ci General LC-MS procedure: All spectra were obtained using an HP1100 LC/MSDinstrument. A setup with a binary pump, autosampler, column oven, diode array detecter, and electrospray ionization interface was used. A reversed-phase column (C18 Luna 3mm particle size, 7.5 cm x 4.6 mm ID) with a guard cartridge system was used. The column was maintained at a temperature of 30 0 C. The mobile phase was acetonitrile/8 mM aqueous ammonium acetate. A 15 minute gradient program was used, starting at 70% acetonitrile over 12 minutes to 95 acetonitrile over 1 minute back to 70% acetonitrile, where it stayed for 2 minutes. The flow rate was 0.6 ml/min. The tr values reported in the specific examples below were obtained using this procedure.
2-(3-(4-n-Butylpiperidine-1-yl)-propyl)-benzothiazole 1-Benzyl-4-nbutylidenepiperidine A 500 mL 3-necked flask fitted with a stirrer was charged with sodium hydride (1.61 g, 67 mmol) and DMSO (40 mL). The resulting suspension was heated to 90 0 C for 30 minutes, until the evolution of hydrogen ceased. The suspension was cooled on an ice-bath for 20 minutes followed by addition of a slurry of butyltriphenylphosphonium bromide (26.6 g, 67 mmol) in DMSO (70 mL). The red mixture was stirred for 15 min at room temperature. 1-Benzyl-4-piperidone 1 (14.0 g, 74 mmol) was slowly added over min, and the mixture was stirred at room temperature over night. H 2 0 (200 mL) was added to the reaction mixture followed by extraction with heptane (4 x 100 mL) and ethyl acetate (2 x 100 mL). The combined organic phases were dried and evaporated to dryness, producing 38.1 g of a yellow oil. The oil was distilled to give 14.9 g (88 of 2, bp 101-105 0 C (0.1 mm Hg). 'H NMR (CDC13) 8 0.90-0.95 3H), 1.25-1.41 2H1), 1.90-2.20 2H), 2.18-2.30 4H), 2.40-2.45 4H), 2.50 2H), 5.17 1H), 7.20-7.42 WO 01/83472 PCT/US01/13561 4-n-Butylpiperidine In a 500 mL flask fitted with a stirrer was added a slurry of 2 (13.2 g, 58 mmol) and 10% palladium on charcoal (1.2 g) in ethanol (70 mL), followed by C, addition of concentrated hydrochloric acid (1.5 mL). The reaction flask was evacuated and Shydrogen was added via a reaction flask. A total of 2.5 dm 3 of hydrogen was consumed.
The reaction mixture was filtered and evaporated and the residue was dissolved in H 2 0 cN mL) and NaOH (20 mL, 2 M) followed by extraction with ethyl acetate (3 x 100 mL). The combined organic phases were washed with brine (30 mL) and evaporated to dryness to Sproduce 7.1 g of crude 3. The crude product was subjected to column chromatography (eluent: heptane EtOAc to give pure 3 (2.7 g, 'H NMR (CDC 3 0.85 3H), N 10 1.0-1.38 9H), 1.65 (dd, 2H), 2.38 1H), 2.55 (dt, 2H), 3.04 (dt, 2H).
S4-(4-n-Butylpiperidin-l-yl)butyric acid methyl ester A 50 mL flask was C1 charged with a mixture of 3 (2.7 g, 15 mmol), 4-bromo butyric acid methyl ester (9.9 g, mmol) and potassium carbonate (8.6 g, 62 mmol) in acetonitrile (25 mL). The mixture was stirred at room temperature for 72 hours followed by evaporation to dryness. The crude product was subjected to column chromatography (eluent: CH 2 Cl 2
:CH
3 OH to produce pure 4 (3.4 g, 1H NMR (CDCl 3 6 0.89 3H), 1.20-1.39 9H), 1.69 2H), 1.89 (qv, 2H), 1.98 2H), 2.36 2H), 2.43 2H), 3.99 2H), 3.67 3H).
General Procedure for the Preparation of 2-(3-(4-n-butylpiperidine-1-yl)-propyl) heteroaromatics 6, 7, 8, 9, 10, 11, 12, 13).
A small sealed vial equipped with a magnetic stirrer, charged with 4 (121 mg, 0.50 mmol), the appropriate benzdiamines (listed under each compound) (0.55 mmol) and polyphosphoric acid (2.1 g) was heated to 150 0 C for 2 hours. The reaction mixture was poured into ice water and neutralized with sodium bicarbonate and filtered. Further treatment of the filtrate with 2 M NaOH produced additional crystals, which were filtered and combined with the earlier crop followed by washing, dried, and recrystallized from ether.
Example 1. 2-(3-(4-n-Butylpiperidine-1-yl)-propyl)benzothiazole (34JJ15). 2- Amino-benzenethiol was used as starting material and the general procedure was followed to produce pure 5 (70 mg, 1 H NMR (CDC1 3 8 0.88 3H), 1.08-1.20 2H), 1.50 (m, 2H), 1.55-1.70 7H), 1.72 (qv, 2H), 1.73-1.75 2H), 2.35-2,39 2H), 2.41 2H), 2.61 2H), 7.39(dt, 2H), 7.89(dd, 2H).
Example 2. 2-(3-(4-n-Butylpiperidine-1-yl)-propyl)-benzooxazole (34JJ17). 2- Amino-phenol was used as starting material and the general procedure was followed to produce pure 6 (137 mg, 11 NMR (CDC1 3 8 0.88 3H), 1.18-1.32 10H), 1.65 WO 01/83472 PCT/US01/13561 21H), 1.95 2H), 2.12 (qv, 2H), 2.49 2H), 2.92-3.00 3H), 7.28-7.32 2H), 7.45- 7.50 1H), 7.64-7.68 1H).
Example 3. 4,5-Difluoro-2-(3-(4-n-butylpiperidine-1-yl)-propyl)-1Hbenzoimidazole (34JJ21). 3,4-Difluoro-1,2-diaminobenzene was used as starting material and the general procedure was followed to produce pure 7 (55 mg, 'H NMR
(CDC
3 8 0.93 3H), 1.30-1.44 9H), 1.82 2H), 1.98 (qv, 2H), 2.09 2H), 2.63 (dt, 2H), 3.07 2H), 3.14 (dt, 2H), 6.95-7.03 1H), 7.16-7.21 1H).
Example 4. 6-Fluoro-5-nitro-2-(3-(4-n-butylpiperidine-1-yl)-propyl)-JH- 0_ benzoimidazole (34J13). 4-Fluoro-5-nitro-1,2-diaminobenzene was used as starting material and the general procedure was followed to produce pure 8 (12 mg, 'H NMR
(CDC
3 8 0.93 3H), 1.30-1.54 7H), 1.60 2H), 1.93 2H), 2.22 (qv, 2H), 2.42 (t, Cg 2H), 2.82 2H), 3.24 2H), 3.31 2H), 7.34 1H), 8.29 1H).
Example 5. 5-tert-Butyl-2-(3-(4-n-butylpiperidiine-1-yl)-propyl)-1H-benzolnidazole (23JJ83). 4-tert-Butyl-1,2-diaminobenzene was used as starting material and the general procedure was followed to produce pure 9 (74 mg, 1 H NMR (CDCl 3 6 0.93 3H), 1.30-1.42 18H), 1.81 1.96 (qv, 2H), 2.04 2H), 2.55 2H), 3.02 2H), 3.07 2H), 7.26 (dd, 1H), 7.45 1H), 7.53 1H).
Example 6. 5-Chloro-6-methyl-2-(3-(4-n-butylpiperidine-1-yl)-propyl)-1Hbenzolmldazole (10) (23JJ93). 4-Chloro-5-methyl-1,2-diaminobenzene was used as starting material and the general procedure was followed to produce pure 10 (7 mg, 'H NMR
(CDC
3 6 0.94 3H11), 1.30-1.41 9H), 1.83 211), 1.95 (qv, 2H), 2.08 2H), 2.46 (s, 3H), 2.57 2H), 3.04 2H), 3.09 2H), 7.32 1H), 7.50 1H).
Example 7. 4,6-Difluoro-2-(3-(4-n-butylpiperldine-1-yl)-propyl)-JHbenzoimidazole (11) (23JJ77). 3,5-Difluoro-1,2-diaminobenzene was used as starting material and the general procedure was followed to produce pure 11 (50 mg, 'H NMR
(CDCI
3 8 0.92 3H11), 1.22-1.43 7H), 1.56 2H), 1.87 2H), 2.13 (qv, 2H), 2.38 (t, 2H), 2.87 2H), 3.19 2H), 2.29 2H), 6.69 (dt, 1H), 7.02 (dd, 1H).
Example 8. 2-(3-(4-n-Butylpiperidine)-1-yl-propyl)-JH-imidazo[4,5-c]pyridne (12) (23JJ81). Pyridine-3,4-diamine was used as starting material and the general procedure was followed to produce pure 12 (18 mg, 1H NMR (CDCl 3 6 0.94 3H), 1.30-1.42 (m, 9H), 1.87 2H), 2.01 (qv, 2H), 2.13 2H), 2.64 2H), 3.08 211), 3.17 21H1), 7.41 (d, 1H), 8.35 1H), 8.90 1H).
Example 9. 8-(3-(4-n-Butylpiperidine)-1-yl-propyl)-9H-purine (13) (34JJ27).
was used as starting material and the general procedure was followed 32 WO 01/83472 PCTIUSOI/13561 to produce pure 12 (94 mg, 1 H NMR (MeOD) 8 0.92 3H1), 1.29-1.39 (in, 6H), 1.43- 1.60 (in, 3H), 2.00 2H), 2.43 (qv, 2H), 3.00 2H), 3.21-3.35 (mn, 4H), 3.64 2H), 9.25 11H), 9.38 1H).
Example 10. 7-(3-(4-n-Butylpiperidine)-1-yl-propyl)-3,8-dihydroimlidazoj4 ':3,4Jbentzo[1,2-dJ[1,2,3jtriazole (14) (34JJ39). 1H-Benzotriazole-4,5-diamine c-i was used as starting material and the general procedure was followed to produce pure 14 (24 ing, 1 H NMIR(DMSO) 8 0.83 3H), 1.00-1.28 (in, 9H), 1.57 2H), 1.80 2H), 1.94 (qv, 2H), 2.32 2H), 2.82 2ff), 2.88 2H), 7.49 1H), 7.62 1H).
00 Example 11. 2-(3-(4-n-Butylplperidine)-1-yl-propyl)-3a,4,S, 6,7, 7a-hexahlydro-1Hbenzoimidazole Cyclohexane-1,2-diamine was used as starting material and the general procedure was followed to produce pure 15 (79 mg, 1H NMR (CDCI3) 8 0.80-1.05 (mn, 1 1H), 1.27-1.75 (in, 17H), 2.57 2H), 2.66 2ff), 3.57 1H), 4.48 1H).
General Procedure for the Preparation of Substituted Indole Derivatives (16, 17, 18, 19, 20 and 21). 1,3-Dibromopropane (205 jil, 2.0 mmol) in 5 ML. DMIF was placed in a m1L flask. The appropriate indole (2.0 mmol) and KOH (280 mg, 5.0 nunol) was partly dissolved in 5 mL. DMF and added during stirring. Resulting suspension was stirred overnight at room temperature. 4-Butylpiperidine (178 mg, 1.0 mmol) in 5 mL. DMF was added and the mixture was stirred overnight at room temperature. Ethyl acetate (20 mL.) and water (20 inL) were added. The phases were separated and the aqueous phase was reextracted with ethyl acetate (20 The combined organic phases were washed with brine, dried over magnesium sulphate and evaporated to dryness to produce crude product. Crude product was purified by column chromatography methaol:dichloromethane) to produce pure products.
Example 12. 1-(3-(4-n-Butylpiperine)-1-yl-propyl)-1H-in dole (16) (3SAKU-15).
I1H-Indole was used as starting material and the general procedure was followed to produce pure 16 (69 mg, 1 H NVMR (CDCI 3 8 0.9 311, 1.2-1.3 (in, 7H1), 1.5 2H), 1.75 (d, 211), 2.1-2.3 (in, 4H), 2.5 2H), 3.1 211), 4.25 211), 6.5 1H), 7.1 (mn, 2H), 7.2 (t, 1 7.3 5 I1H), 7.6 1 H).
Example 13. 1-(3-(4-nt-Butylpiperidine)-1-yl-propyl)-JH-bentzolmidazole (17) (35AKU-16). 1H-Benzoimidazole was used as starting material and the general procedure was followed to produce pure 17 (69 ing, 'H NIMR (CDC1 3 8 0.9 3H), 1.2-1.3 (in, WO 01/83472 PCT/US01/13561 7H), 1.5 2H), 1.75 2H), 2.25 4H), 2.6 2H), 3.1 2H), 4.3 2H), 7.2-7.3 (m, 2H), 7.45 1H), 7.75 1H), 8.0 1H).
Example 14. 3-Methyl-1-(3-(4-n-butylpiperidine)-l-yl-propyl)-lH-indole (18) S(35AKU-22). 3-Methyl-lH-indole was used as starting material and the general procedure S 5 was followed to produce pure 18. 'H NMR (CDCI 3 5 0.9 3H), 1.2-1.3 9H), 1.65 (d, N 2H), 1.9 2H), 2.0 2H), 2.25 2H), 2.3 3H), 2.85 2H), 4.1 2H), 6.85 1H), 7.1 1H), 7.2 1H), 7.55 1H).
c Example 15. 5-Bromo-l-(3-(4-n-butylpiperidine)-l-yl-propyl)-lH-indole (19) 00 (35AKU-23). 5-Bromo-1H-indole was used as starting material and the general procedure 10 was followed to produce pure 19. 'H NMR (CDC13) 6 0.9 3H), 1.2-1.3 9H), 1.65 (d, S2H), 1.85 2H), 2.0 2H), 2.2 2H), 2.8 2H), 4.15 2H), 6.4 1H), 7.1 1H), iN 7.25 2H), 7.75 1H).
Example 16. 3-Formyl-l-(3-(4-n-butylpiperidine)-l-yl-propyl)-lH-indole (35AKU-24). 3-Formyl-lH-Indole was used as starting material and the general procedure was followed to produce pure 20. 'H NMR (CDC1 3 5 0.9 3H), 1.2-1.3 9H), 1.7 (d, 2H), 1.95 2H), 2.1 2H), 2.3 2H), 2.9 2H), 4.3 2H), 7.3-7.5 3H), 8.3 (m, 1H), 10.0 1H).
Example 17. 7-Bromo-l-(3-(4-n-butylpiperidine)-l-yl-propyl)-1H-indole (21) 35AKU-25). 7-Bromo-1H-indole was used as starting material and the general procedure was followed to produce pure 21. 1 H NMR (CDC1 3 0.9 3H), 1.2-1.3 9H), 1.65 (d, 2H), 1.9 2H), 2.05 2H), 2.3 2H), 2.9 2H), 4.55 2H), 6.45 1H), 6.9 1H), 7.1 1H), 7.35 1H), 7.55 1H).
Example 18. 1-(3-Bromo-propyl)-1H-indazole 1,3-Dibromopropane (508 p1, mmol)) was dissolved in 10 mL DMF and placed in a 100 mL flask. Indazole (592 mg, 5.0 mmol) and KOH (282 mg, 5.0 mmol) were added and the suspension was stirred overnight at room temperature. Ethyl acetate (50 mL) and water (50 mL) were added.
Phases were separated and the aqueous phase was re-extracted with ethyl acetate (50 mL).
The combined organic phases were washed with brine, dried over magnesium sulphate and evaporated to dryness to produce 751 mg of a yellow oil. Crude product was further purified by column chromatography (0-10% methanol:dichloromethane) to produce pure 22 (169 mg, 14%).
Example 19. 1-(3-(4-n-Butylpiperidine)-l-yl-propyl)-lH-indazole (23) (35AKU-21).
To a 50 mL flask was added 22 (169 mg, 0.7 mmol) and 10 mL DMF. 4-Butylpiperidine (3) WO 01/83472 PCT/US01/13561 (142 mg, 1.0 mmol) and KOH (113 mg, 2.0 mmol) were partly dissolved in DMF (5 mL) and 0 added. The suspension was stirred overnight at room temperature. Ethyl acetate (20 mL) and CN water (20 mL) were added. The phases were separated and the aqueous phase was reextracted with ethyl acetate (20 mL). The combined organic phases were washed with brine, dried over magnesium sulphate and evaporated to dryness to give 192 mg of light brown oil.
CI Crude product was purified by column chromatography (0-10% methanol:dichloromethane) to produce pure product 23 (61 mg, Oxalate-salt was prepared from oxalic acid (1.1 eq.) in methanol/diethylether. 1H NMR (CDCl 3 8 0.9 3H), 1.2-1.3 9H), 1.65 2H), 00 1.9 2H), 2.15 2H), 2.3 2H), 2.85 2H), 4.45 2H), 7.1 1H), 7.35 1H), N 10 1H), 7.7 1H), 8.0 1H).
SExample 20. 1-(2-Hydroxy-phenyl)-ethanone oxime (24).
C1 Hydroxylammoniumchloride (6.96 g, 100 mmol) and sodium acetate.3H 2 0 (13.6 g, 100 mmol) were dissolved in 150 mL ethanol:water and added to a solution of 2hydroxyacetophenone (6.81 g, 50 mmol) in 50 mL ethanol:water The pH was adjusted to 4-5 with 4N HC1 (-10 mL) and the reaction mixture was then heated to reflux (100 0 C) for 1 hour. The oil bath was removed and the mixture was left overnight with stirring. Ethanol was partly removed by evaporation and the aqueous phase was extracted with ethyl acetate two times. The combined organic phases were dried over magnesium sulphate and evaporated to dryness to produce 7.55 g of pure 24.
Example 21. 3-Methyl-benzo[d]isoxazole Acetic anhydride (7.1 mL, 75 mmol) was added to 24 (7.55 g, 50 mmol) in a 100 mL flask. The mixture was heated to 60 0 C for 3 hours followed by evaporation to dryness. Potassium carbonate (8.7 g, 63 mmol) was partly dissolved in 40 mL DMF and added to the mixture. The mixture was stirred at room temperature overnight and finally heated to 100 0 C for 30 minutes. Ethyl acetate and water were added. The phases were separated and the aqueous phase was extracted with ethyl acetate and dichloromethane. The combined organic phases were dried over magnesium sulphate and evaporated to dryness to give 5.6 g of a yellow oil. Crude product was purified by column chromatography (100% dichloromethane), producing pure 25 (4.6 'H NMR (CDCl 3 5 2.6 3H), 7.3 1H), 7.55 2H), 7.65 1H).
Example 22. 3-But-3-enyl-benzo[djisoxazole 3.0 mL dry THF was added to an oven-dried 25 mL flask and cooled to -78 0 C on a dry ice/isopropanol bath. Diisopropylamine (840 tl, 6.0 mmol) was added followed by n-BuLi (3.8 mL, 1.6 M, 6.0 mmol). The LDAsolution that was obtained was left at room temperature. Compound 25 (666 mg, 5.0 mmol) WO 01/83472 PCT/US01/13561 was dissolved in 10mL dry THF and added to an oven-dried 50 mL flask followed by allylbromide (476 Ct1, 5.5 mmol). The freshly prepared LDA-solution was slowly added at CN 78 0 C and the mixture was left at room temperature for 30 min. Ethyl acetate and water were Sadded. The phases were separated and the aqueous phase was extracted with ethyl acetate.
The combined organic phases were dried over magnesium sulphate and evaporated to dryness c, to produce 893 mg of a light brown oil. Crude product was purified by column chromatography (heptane:ethyl acetate; 9:1; isocratic) to produce pure 26 (355 mg, 41%).
Co Example 23. 3-(Benzo[d]isoxazol-3-yl)-propionaldehyde Compound 26 (549 00 mg, 3.2 mmol), water (5 mL), 1,4-dioxane (15 mL) and osmium tetroxide (15 mg, 0.06 l 10 mmol) were stirred for 5 min. in a small flask. Sodium metaperiodate (1.56 g, 7.3 mmol) was Sadded over 30 min. and the suspension was then stirred for 1 hour. Ethyl acetate and water CN were added. The phases were separated and the aqueous phase was extracted with ethyl acetate and dichloromethane. The combined organic phases were dried over magnesium sulphate and evaporated to dryness to produce 784 mg of crude 27, which was used directly without further purification in the synthesis compound 28.
Example 24. 3-(3-(4-n-Butylpiperidine)-l-yl-propyl)-benzo[d]isoxazole (28) (35AKU-2). Compound 27 (-500 mg, 2-3 mmol) was dissolved in 5 mL methanol. 4- Butylpiperidine.HCI 3 (260 mg, 1.5 mmol) was dissolved in 10 mL methanol and added.
Sodium cyanoborohydride (188 mg, 3.0 mmol) in 10 mL methanol was added, giving a dark brown solution which was stirred overnight. Water was added and methanol was partly removed by evaporation. The aqueous phase was extracted with ethyl acetate and dichloromethane. The combined organic phases were dried over magnesium sulphate and evaporated to dryness. The crude product was further purified by preparative HPLC (mobile phase 0-80% acetonitrile in water TFA)) giving 28 (244 mg, HCl-salt was prepared from 2M HC1 in diethylether. The crystals were filtered and washed by diethylether. 'H-NMR (CDCI 3 6 0.9 3H), 1.2-1.3 9H), 1.65 2H), 1.9 2H), 2.05 2H), 2.45 2H), 2.9 2H), 3.0 2H), 7.3 1H), 7.55 2H), 7.7 1H).
Example 25. 3-(1H-Indol-3-yl)-propan-l-ol A suspension of lithium aluminum hydride (4.68 g, 126 mmol) in 230 mL anhydrous diethylether was stirred heavily. 3-Indole propionic acid (10.0 g, 53 mmol) dissolved in 460 mL anhydrous diethylether was transferred to a dropping funnel and added at such a rate that gentle reflux was maintained. The reaction mixture was left with stirring at reflux temperature for 2 h, then at room temperature overnight. Then reflux was continued for 2 h before cooling to room temperature. 25 mL WO 01/83472 PCT/US01/13561
H
2 0 was slowly added followed by 70 mL H 2 0/H 2 S0 4 (1:3 H 2 0/H 2 S0 4 The resulting clear mixture was extracted with 110 mL diethylether three times. The combined organic phases were washed with brine, dried with Na 2 S04, filtrated and concentrated to bright oil, which was used without further purification.
Example 26. Methanesulfonic acid 3-(1H-indole-3-yl)-propyl ester Compound C 29 (1.8 g, 5.44 mmol) was transferred to a flame-dried flask filled with argon and dissolved in anhydrous THF then cooled to -40 0 C. Triethylamine (0.72 g, 7.07 mmol) was added by syringe followed by MeSO 2 Cl (0.75 g, 6.53 mmol). The temperature of the reaction mixture 00 was allowed to rise to room temperature (10-15 minutes) before it was quickly filtrated and CI 10 concentrated. The crude oil was dissolved in CH 2 C1 2 and washed with H 2 0. The organic 0phase was dried with MgSO 4 filtrated and concentrated in vacuo to a dark, brown oil. The CN crude product was used immediately in the next step.
Example 27. 3-(3-(4-n-Butylpiperidine)-l-yl-propyl)-lH-indole (31) (39MF34).
Na 2
CO
3 (1.28 g, 11.97 mmol) was added to a solution of 4-butylpiperidine hydrochloride 3 (967 mg, 5.44 mmol) in anhydrous DME. The resulting suspension was stirred for 30 min.
Compound 30 was dissolved in anhydrous DME and added to the suspension. The resulting mixture was stirred under argon at 82 0 C over night. The mixture was cooled, EtOAc and
H
2 0 was added, the two phases were separated, and the water was extracted with EtOAc three times. The combined organic phases were washed with brine, dried with Na 2
SO
4 filtrated and concentrated in vacuo. The crude oil was dissolved in anhydrous CH 2 C1 2 and HCI in dioxane (4M, 2 mL) was added. The product (31) was isolated as white crystals by recrystallization from MeOH/diethylether. 'H-NMR (CDCI 3 8 0.93 3H), 1.32-1.58 (m, 7H), 1.60 2H), 1.93 2H), 2.22 (qv, 2H), 2.42 2H), 2.82 2H), 3.24 2H), 3.31 (d, 2H), 6.91-7.10 2H), 7.34 1H), 7.53 1H).
Example 28. 4-Nitro-2-(3-(4-n-butylpiperidine)-l-yl-propyl)-lH-benzoimidazole (32) (29MF03). A 25 mL flask fitted with a condenser and a magnetic stirrer was charged with 1,2-diamino-3-nitrobenzene (0.251 g, 1.64 mmol) and 4-(4-n-butylpiperidin-l-yl)butyric acid methyl ester (0.395 g, 1.64 mmol) in 5 mL 4 M HC1. The reaction was refluxed for 24 h followed by addition of 2.0 M NaOH to to produce basic conditions, stirred at room temperature for 1 h and extracted with ethyl acetate (5 x 50 mL). The combined organic phases were washed with 15 mL brine, then dried over MgSO4 and evaporated to dryness to produce 0.45 g of crude product. The crude material was subjected to column chromatography (eluent: CH 2 Cl 2 :MeOH to give the pure title compound (32) (0.03 g, WO 01/83472 PCT/US01/13561 'H NMR (CDC1 3 0.92 3H), 1.25-1.42 9H), 1.55-1.64 2H), 1.75-1.82 (m, 2H), 2.10-2.23 2H), 2.24-2.31 2H), 2.67-2.77 2H), 3.17-3.22 4H), 7.25-7.35 C- 1H), 7.97-8.04 1H), 8.08-8.13 1H).
2 Example 29. 5-Nitro-2-(3-(4-n-butylpiperldine)-l-yl-propyl)-lH-benzoimidazole (33) (29MF04). A 25 mL flask fitted with a condenser and a magnetic stirrer was charged CI with 1,2-diamino-4-nitrobenzen (0.259 g, 1.69 mmol) and 4-(4-n-butylpiperidin-1-yl)-butyric acid methyl ester (0.408 g, 1.69 mmol) in 5 mL 4 M HC1. The reaction was refluxed for Cc 24 h followed by addition of 2.0 M NaOH to produce basic conditions, then stirred in room 00 temperature for 1 h and extracted with ethyl acetate (5 x 50 mL). The combined organic C- 10 phases were washed with 15 mL brine then dried over MgSO4 and evaporated to dryness to Sproduce 0.27 g of a crude material. The crude material was subjected to column C- chromatography (eluent: CH 2 C1 2 :MeOH to produce the final compound (122 mg).
This material was isolated and dissolved in a 2.0 M HCI in ether solution followed by evaporation to dryness to give the pure title compound (33) (80 mg, 1H NMR
(CD
3 0D) 0.92(t, 3H), 1.34 6H), 1.55 3H), 2.00 2H), 2.45 2H), 3.01 2H), 3.29-3.37 (dt, 4H), 3.64 2H), 7.94 1H), 8.43 (dd, 1H), 8.65 1H).
Example 30. 4-Hydroxy-2-(3-(4-n-butylpiperidine)-l-yl-propyl)-H-benzoimidazole (34) (29MF07). A 25 mL flask fitted with a condenser and magnetic stirrer was charged with 1,2-diamino-4-hydroxybenzene (0.177 g, 1.43 mmol) and 4-(4-n-butylpiperidin- -yl)-butyric acid methyl ester (0.345 g, 1.43 mmol) in 5 mL 4 M HC1. The reaction was refluxed for h followed by addition of 2.0 M NaOH to to produce basic conditions. The mixture was evaporated to dryness on 10 mL silica and subjected to column chromatography (eluent:
CH
2 Cl 2 :MeOH to produce crude product (0.145 The crude was subjected to preparative HPLC (eluent: buffer A: 0.1% TFA; buffer B: 80% CH 3 CN 0.1% TFA) and product isolated was evaporated with 1.0 M TFA in ether to give the pure title compound 34 (74 mg, 16%) as a trifluoroacetic acid salt. 'H NMR(CD 3 0D) 0.98(t, 3H), 1.32-1.45 6H), 1.51-1.69 3H), 1.97-2.08 2H), 2.37-2.47 2H), 2.95-3.12 2H), 3.26-3.41 (m, 4H), 3.58-3.3.72 2H), 6.91-6.97 1H), 7.19-7.25 1H), 7.35-7.43 1H).
Example 31. 2-(3-(4-n-Butylpiperidine)-l-yl-propyl)-lH-benzolmidazole (21MF25). A 25 mL flask fitted with a condenser and a magnetic stirrer was charged with 1,2-diaminobenzene (0.201 g, 18.6 mmol) and 4-(4-n-butylpiperidin-1-yl)-butyric acid methyl ester (0.50 g, 2.1 mmol) in 6 mL 4 M HC1. The reaction was refluxed for 20 hours followed by addition of 2.0 M NaOH to to produce basic conditions. The precipitate was filtrated and dried under vacuum followed by column chromatography (eluent: CH 2 Cl 2 38 WO 01/83472 PCT/US01/13561 :MeOH to produce the pure title compound 35 (0.40 g, mp 78-79 oC, 'H NMR(CDCl 3 0.92 3H), 1.33 6H), 1.50 3H), 1.80-1.95 2H), 2.0-2.15 2H), 2.16-2.24 2H), 2.62-2.75 2H), 3.17-3.21 4H), 7.20-7.23 2H), 7.52-7.59 (m, S2H).
Example 32. 4-Methyl-2-(3-(4-n-butylpiperidine)-l-yl-propyl)-lH-benzolmidazole ci (36) (29MF08). A 25 mL flask fitted with a condenser and a magnetic stirrer was charged with 1,2-diamino-3-methylbenzene (0.168 g, 1.37 mmol) and 4-(4-n-butylpiperidin-1-yl)butyric acid methyl ester (0.331 g, 1.37 mmol) in 5 mL 4 M HC1. The reaction was 00 S refluxed for 48 h followed by addition of 4.0 M NaOH. The reaction mixture was extracted C, 10 with dichloromethane (4 x 25 mL). The combined organic phases were dried over MgSO4 0and evaporated to give 0.40 g of crude product. The crude material was subjected to column CN chromatography (eluent: CH2C1 2 :MeOH and the isolated product was evaporated to dryness with 1.0 M HCl in ether to give the pure title compound 36 (0.210 g, 'H
NMR(CD
3 0D) 0.92 3H), 1.33 6H), 1.54 3H), 1.99 2H), 2.43 2H), 2.65 (m, 2H), 3.00 2H), 3.28 2H), 3.63 2H), 7.38 1H), 7.47 1H), 7.59 1H).
Example 33. 3-(2-(4-n-butylpiperidlne)-l-yl-ethyl)-lH-indole A 25 mL flask fitted with a magnetic stirrer was charged 4-n-butylpiperidine hydrochloride 3 (0.256 g, 1.4 mmol) and potassium carbonate (0.5 g, 3.6 mmol) in dioxane (5 mL). The mixture was stirred at room temperature for 2 h followed by addition of 3-(2-bromoethyl)indole (0.30 g, 1.3 mmol) dissolved in dioxane (5 mL). The mixture was then stirred at 50 OC for 24 h.
Addition of water (15 mL) was followed by extraction with ethyl acetate (3 x 50 mL). The combined organic phases were dried over MgSO4 and evaporated to give 1.02 g of crude product. The crude product was subjected to column chromatography (Eluent:
CH
2 C1 2 :MeOH to give pure title compound 37 (0.08 g, 1 H NMR(CDC1 3 0.90(t, 3H), 1.25-1.49 9H), 1.72-1.79 2H), 2.77 2H), 3.06 2H), 3.16 2H), 7.03 1H), 7.11 1H), 7.19 1H), 7.36 1H), 7.61 1H), 8.09-8.16 1H).
Example 34. (2-(4-Chloro-butan-l-one)-phenyl)-carbamic acid tert-butyl ester (38).
To a dry 100 mL one-necked flask fitted with condenser, a magnetic stirrer and argon inlet was added 4-chlorobutanoyl chloride (624 mg, 44 mmol) and bis(acetonitrile)dichloropalladium (34 mg) in 10 mL dry toluene. To the mixture was added (2-trimethylstannyl-phenyl)-carbamic acid tert-butyl ester (1.5 g, 42 mmol) (Bioorg. Med.
Chem., 6:811 (1998)) dissolved in 15 mL dry toluene. The mixture was then refluxed for 1 h and then stirred in room temperature for 17 h. The reaction was evaporated to dryness which produced a crude product (1.6 g) and this was subjected to column chromatography (eluent: WO 01/83472 PCT/US01/13561 heptane:EtOAc 10:1) to give the pure title compound 38 (1.15 g, 92 'H NMR(CDC1 3 1.52 9H), 2.22 2H), 3.22 2H), 3.68 2H), 7.03 1H), 7.51 1H), 7.91 1H), S8.48 1H), 10.90 1H).
Example 35. (2-(3-(4-n-butylpiperidine)-l-yl-propyl)-phenyl)-carbamic acid tert- 5 butyl ester To a dry 5 mL flask fitted with a magnetic stirrer and argon inlet was added cN .38 (0.5 g, 1.7 mmol) and 4-n-butulpiperidine 3 (1.5 g, 10.6 mmol) and left stirring at 60 0 C for h. The crude reaction mixture was subjected to column chromatography (eluent
SCH
2
CI
2 :MeOH 20:1) to produce the pure compound 39 (0.49 g, 72 'H NMR(CDCl 3 00 0.87 3H), 1.18-1.27 9H), 1.52 9H), 1.64 2H), 1.94 4H), 2.41 2H), 2.91 c 10 2H), 3.03 2H), 7.00 1H), 7.49 1H), 7.91 1H), 8.46 1H), 10.97 1H).
0 Example 36. 3-(3-(4-n-Butylpiperidine)-l-yl-propyl)-IH-indazole (40) (39MF34).
C Compound 39 (0.06 g, 0.15 mmol) dissolved 2 mL 4.0 M HC1 in dioxane was added to a mL flask and stirred at room temperature for 1 h. The mixture was evaporated to dryness and then redissolved in 1 mL concentrated HC1 and the temperature was adjusted to 0°C with an ice/water bath. To the cooled mixture was added sodium nitrite (0.010 g, 0.15 mmol) dissolved in 2 mL water, and the reaction mixture was maintained at 0°C for 1.5 h. followed by addition of tin dichloride (0.08 g, 0.36 mmol) dissolved in 2 mL concentrated HC1. After h at 0 crystals were formed. The crystals were filtered and washed with water to produce the crude product (0.07 The crude product was subjected to column chromatography (eluent: CH 2 C1 2 :MeOH 20:1) to give the pure compound 40 (9.0 mg, 20 'HNMR (CDC13) 0.88 3H), 1.19-1.33 9H), 1.67 2H), 1.95 2H), 2.08 2H), 2.50 2H), 2.93-3.20 4H), 7.12 1H), 7.36 1H), 7.43 1H), 7.71 1H), 9.87- 10.05 1H).
Example 37. 3-(2-Chloro-ethoxy)-7-methyl-benzo[d]isoxazole 1-Bromo-2chloroethane (168 tl, 2.0 mmol) was added to 5 ml DMF in a 50 ml flask. 7-Methylbenzo[d]isoxazol-3-ol (298 mg, 2.0 mmol), potassium carbonate (276 mg, 2.0 mmol) and additional DMF (5 ml) were added and the mixture was stirred for 12 h. Ethylacetate (50 ml) and H 2 0 (50 ml) were added. The two phases were separated and the aqueous phase was extracted with ethylacetate. The combined organic phases were washed with brine, dried over MgSO4 and evaporated to dryness to give 420 mg of the crude product. The crude product was subjected to column chromatography methanol in dichloromethane) to give the pure title compound 41 (290 mg, 'H NMR (CDC13) 2.5 3H), 3.9 2H), 4.7 2H), 7.2 1H), 7.3 1H), 7.5 2H).
WO 01/83472 PCT/US01/13561 Example 38. 3-(2-(4-n-Butylpiperidine)-ethoxy)-7-methyl-benzo[d]isoxazole (42) (35AKU-41). Compound 41 (294 mg, 1.4 mmol) was dissolved in DMF (5 ml) in a 50 ml c. flask followed by addition of a mixture of 4-n-butyl-piperidine (284 mg; 1.6 mmol) and potassium carbonate (442 mg; 3.2 mmol) dissolved in DMF (15 ml). The mixture was stirred for 2 days at 80 0 C. Ethylacetate (50 ml) and H 2 0 (50 ml) were added, the phases were C1 separated, and the aqueous phase was extracted with ethylacetate (3 x 50 ml). The combined organic phases were washed with brine, dried over MgSO4 and evaporated to dryness to Cr produce the crude product (454 mg). The crude product was subjected to column 00 chromatography methanol in dichloromethane) to produce the pure title compound 42 C1 10 (131 mg, The oxalate salt was prepared from oxalic acid (1.1 eq.) in O methanol/diethylether. 'H NMR (CDC13) 0.9 3H), 1.2-1.3 9H), 1.7 2H), 2.1 (t, N 2H), 2.5 3H), 2.9 2H), 3.0 2H), 4.6 2H), 7.15 1H), 7.3 1H), 7.45 1H).
Example 39. 1-(3-(4-Methylpiperidine)-l-yl-propyl)-lH-indazole (43) (46R013.48).
Solid K 2 CO3 (70 mg, 0.5 mmol) was added to a mixture of 7-bromo-1-(3-(4-nbutylpiperidine)-l-yl-propyl)-lH-indole (96 mg, 0.4 mmol) and 4-methylpiperidine (30 mg, 0.3 mmol) in CH 3 CN (2 ml). The resulting slurry was stirred at 50 0 C for 48 h and then cooled to ambient temperature. The slurry was then poured into water (10 ml) and worked up as follows: extraction with ethyl acetate (3 x 10 ml), washing of the collected organic phases sequentially with water (3 x 5 mL) and brine, followed by drying over MgSO4 and removal of the solvent by rotary evaporation. The residue was purified on ISOLUTE SCX to give compound 43 (25 mg, Oxalate-salt was prepared from oxalic acid (1.1 eq.) in methanol/diethylether. 'H NMR (CD 3 OD) 6 0.9 3H), 1.2 2H), 1.6 1H), 1.8 2H), 2.15 2H), 2.8 2H), 3.0 2H), 3.4 2H), 4.45 2H), 7.1 1H), 7.35 1H), 1H), 7.7 1H), 8.0 1H).
Example 40. 1-(3-(4-Pentylpiperidine)-l-yl-propyl)-lH-indazole (44) (46R013.57).
Solid K 2
CO
3 (35 mg, 0.25 mmol) was added to a mixture of 7-bromo-1-(3-(4-nbutylpiperidine)-l-yl-propyl)-1H-indole 48 mg, 0.4 mmol) and 4-pentylpiperidine (23 mg, 0.15 mmol) in CH 3 CN (2 ml). The resulting slurry was stirred at 50 0 C for 48 h and then cooled to ambient temperature. The slurry was then poured into water (10 ml) and worked up as follows: extraction with ethyl acetate (3 x 10 ml), washing of the collected organic phases sequentially with water (3 x 5 ml) and brine, followed by drying over MgSO4 and removal of the solvent by rotary evaporation. The residue was purified on ISOLUTE SCX to give compound 44 (25 mg, Oxalate-salt was prepared from oxalic acid (1.1 eq.) in WO 01/83472 PCT/US01/13561 methanol/diethylether. 'H NMR (CD30D) 8 0.9 3H), 1.2 12H), 1.6 1H), 1.8 (d, 2H), 2.15 2H), 2.8 2H), 3.0 2H), 3.4 2H), 4.45 2H), 7.1 1H), 7.35 (t, 1H), 7.5 1H), 7.7 1H), 8.0 1H).
Example 41. 1-(3-(4-Propylpiperidine)-l-yl-propyl)-lH-indazole (46R013.55LH). Solid K 2 C0 3 (35 mg, 0.25 mmol) was added to a mixture of 7-bromo-1-(3cI (4-n-butylpiperidine)-l-yl-propyl)-1H-indole (48 mg, 0.2 mmol) and 4-propylpiperidine (19 mg, 0.15 mmol) in CH 3 CN (2 ml). The resulting slurry was stirred at 50 0 C for 48 h and then Cc cooled to ambient temperature. The slurry was then poured into water (10 ml) and worked up 00 oO _as follows: extraction with ethyl acetate (3 x 10 ml), washing of the collected organic phases Ci 10 sequentially with water (3 x 5 ml) and brine, followed by drying over MgS04 and removal of Sthe solvent by rotary evaporation. The residue was purified on ISOLUTE SCX to give title CI compound 45 (16 mg, Oxalate-salt was prepared from oxalic acid (1.1 eq.) in methanol/diethylether. 'H NMR (CD 3 OD) 8 0.9 3H), 1.2 6H), 1.6 1H), 1.8 2H), 2.15 2H), 2.8 2H), 3.0 2H), 3.4 2H), 4.45 2H), 7.1 1H), 7.35 1H), 1H), 7.7 1H), 8.0 1H).
Example 42. 1-(3-(4-(3-Methyl-butyl)-piperidine)-l-yl-propyl)-1H-indazole (46) (46R013.58). Solid K 2 CO3 (35 mg, 0.25 mmol) was added to a mixture of 7-bromo-l-(3-(4n-butylpiperidine)-l-yl-propyl)- lH-indole (48 mg, 0.2 mmol) and 4-(3-methyl-butyl)piperidine (23 mg, 0.15 mmol) in CH3CN (2 ml). The resulting slurry was stirred at 50 0 C for 48 h and then cooled to ambient temperature. The slurry was then poured into water (10 ml) and worked up as follows: extraction-with ethyl acetate (3 x 10 ml), washing of the collected organic phases sequentially with water (3 x 5 ml) and brine, followed by drying over MgSO4 and removal of the solvent by rotary evaporation. The residue was purified on ISOLUTE SCX to give title compound 46 (18 mg, Oxalate-salt was prepared from oxalic acid (1.1 eq.) in methanol/diethylether. 'H NMR (CD30D) 6 0.9 6H), 1.2-1.5 8H), 1.8 (d, 2H), 2.15 2H), 2.8 2H), 3.0 2H), 3.4 2H), 4.45 2H), 7.1 1H), 7.35 (t, 1H), 7.5 1H), 7.7 1H), 8.0 1H).
Example 43.1-(3-(4-Pentylidene-piperidine)-l-yl-propyl)-lH-indazole (47) (46R013.46). Solid K 2 C0 3 (35 mg, 0.25 mmol) was added to a mixture of 7-bromo-1-(3-(4n-butylpiperidine)-l-yl-propyl)-1H-indole (48 mg, 0.2 mmol) and 4-Pentylidene-piperidine (23 mg, 0.15 mmol) in CH 3 CN (2 ml). The resulting slurry was stirred at 50 0 C for 48 h and then cooled to ambient temperature. The slurry was poured into water (10 ml) and worked up as follows: extraction with ethyl acetate (3 x 10 ml), washing of the collected organic phases sequentially with water (3 x 5 ml) and brine, followed by drying over MgS04 and removal of r WO 01/83472 PCT/US01/13561 the solvent by rotary evaporation. The residue was purified on ISOLUTE SCX to give the title compound 47 (3 mg, 5 Oxalate-salt was prepared from oxalic acid (1.1 eq.) in Smethanol/diethylether. 'H NMR (CD30D) 8 0.9 3H), 1.3 4H), 2.0 2H), 2.3 (m, 3H), 2.35 2H), 2.7 2H), 3.1 3H), 3.4 2H), 4.45 2H), 5.3 1H) 7.1 1H), 7.35 1H), 7.5 1H), 7.7 1H), 8.0 1H).
C Example 44. 1-(3-(4-Propylidene-piperidine)-l-yl-propyl)-lH-indazole (48) (46R013.45). Solid K 2 C0 3 (35 mg, 0.25 mmol) was added to a mixture of 7-bromo-l-(3-(4r n-butylpiperidine)-l-yl-propyl)-1H-indole (48 mg, 0.2 mmol) and 4-Propylidene-piperidine 0 (18 mg, 0.15 mmol) in CH 3 CN (2 ml). The resulting slurry was stirred at 50 0 C for 48 h and then cooled to ambient temperature. The slurry was poured into water (10 ml) and worked up as follows: extraction with ethyl acetate (3 x 10 ml), washing of the collected organic phases eC sequentially with water (3 x 5 ml) and brine, followed by drying over MgSO4 and removal of the solvent by rotary evaporation. The residue was purified on ISOLUTE SCX to give the title compound 48 (10 mg, 25 Oxalate-salt was prepared from oxalic acid (1.1 eq.) in methanol/diethylether. 'H NMR (CD30D) 8 0.9 3H), 2.0 2H), 2.4 6H), 3.1 4H), 3.4 2H), 4.45 2H), 5.35 1H), 7.1 1H), 7.35 1H), 7.5 1H), 7.7 1H), 8.0 (s, 1H).
Example 45. 1-Benzo[b]thiophen-2-yl-4-(4-butylpiperidin-1-yl)-butan-l-one (49) (45NK99/oxalate). n-BuLi in heptanes (0.77 ml, 1.0 mmol, 1.3M) was added dropwise to benzo[b]thiophene (134 mg, 1.0 mmol) in THF (4 ml) at -78 0 C under argon. The reaction mixture was stirred at -78 0 C for 15 min, then 4-(4-butyl-piperidin-1-yl)-N-methoxy-Nmethyl-butyramide (135 mg, 0.5 mmol) in THF (1 ml) was added. The reaction was stirred at -78 0 C for 30 min, then NH 4 C1 (sat. aq., 1 ml) was added and the reaction warmed to room temperature. The product was extracted with ethyl acetate (2 x 20 ml) and the organic layer was washed with water (10 ml), dried (K 2
CO
3 filtered and concentrated in vacuo. The product was purified by column chromatography (0-25% ethyl acetate in heptanes +0.1% Et3N). Yield 94 mg (55 The oxalate salt was formed by addition of oxalic acid in diethyl ether:methanol (10:1) to give a white precipitate that was filtered and dried. 'H NMR (DMSO): 8 0.91 3H), 1.24-1.56 9H), 1.87 (br. d, 2H), 2.08 2H), 2.93 2H), 3.14 2H), 3.24 2H), 3.47 2H), 7.46-7.59 2H), 8.05 2H), 8.36 1H).
Example 46. 4-(4-Butylpiperidin-1-yl)-l-(3-methyl-benzofuran-2-yl)-butan-l-one (45NK100/oxalate). n-BuLi in heptanes (0.85 ml, 1.1 mmol, 1.3M) was added drop wise to 3-methylbenzofuran (132 mg, 1.0 mmol) in THF (4 ml) at -78 0 C under argon. The WO 01/83472 PCT/US01/13561 reaction mixture was stirred at -780C for 20 min, then 4-(4-butyl-piperidin-1-yl)-N-methoxy- N-methyl -butyramide (135 mg, 0.5 mmol) in THF (1 ml) was added. The reaction was CI stirred at -78 0 C for 45 min, then NH 4 Cl (sat. aq., 1 ml) was added and the reaction warmed to Sroom temperature. The product was extracted with ethyl acetate (2 x 20 ml) and the organic 5 layer was washed with water (10 ml), dried (K 2 CO3), filtered and concentrated in vacuo. The c product was purified by column chromatography (0-20% ethyl acetate in heptanes +0.1% Et 3 Yield 38 mg (22 The oxalate salt was formed by addition of oxalic acid in diethyl e ether:methanol (10:1) to give a white precipitate that was filtered and dried. 'H NMR 00
(CD
3 0D): 8 0.91 3H), 1.32 6H), 1.42-1.64 3H), 1.89 (br. d, 2H), 2.15 (tt, 2H), 2.58 C 10 3H) 2.96 2H), 3.17 4H), 3.60 2H), 7.33 1H), 7.52 2H), 7.71 1H).
SExample 47. 4-(4-Butylpiperidin-1-yl)-l-(5-fluoro-3-methyl-benzo[b]thiophen-2- CN yl)-butan-l-one (51) (45NK105). n-BuLi in heptanes (0.50 ml, 0.8 mmol, 1.6M) was added drop wise to 5-fluoro-3-methyl-benzo[b]thiophene (166 mg, 1.0 mmol) in THF (4 ml) at 0 C under argon. The reaction mixture was stirred at -40 0 C for 40 min then 4-(4-butylpiperidin-l-yl)-N-methoxy-N-methyl -butyramide (135 mg, 0.5 mmol) in THF (1 ml) was added. The reaction was stirred at -40 0 C for 30 min, then NH 4 C1 (sat. aq., 1 ml) was added and the reaction warmed to room temperature. The product was extracted with ethyl acetate (2 x 20 ml) and the organic layer was washed with water (10 ml), dried (K 2
CO
3 filtered and concentrated in vacuo. The product was purified on a Isco CombiFlash Sq 16x (4.1g silica column, eluting heptanes (5 min), 0-15% ethyl acetate in heptanes (20 min), 15% ethyl acetate in heptanes (15 min), all solvents Et 3 Yield 39 mg The hydrochloride salt was formed by addition ofHCI (4M in dioxane) and recrystallised from methanol-diethyl ether to give a white precipitate that was filtered and dried. 'H NMR (free base, CDC13): 8 0.87 3H), 1.10-1.35 9H), 1.62 (br. d, 2H), 1.96 4H), 2.42 2H), 2.71 3H), 2.93 4H), 7.34 (dt, 1H), 7.49 (dd, 1H), 7.76 (dd, 1H).
Example 48. 1-Benzofuran-2-yl-4-(4-butylpiperidin-1-yl)-butan-l-one (52) (45NK106). n-BuLi in heptanes (0.50 ml, 0.8 mmol, 1.6M) was added drop wise to benzofuran (118 mg, 1.0 mmol) in THF (4 ml) at -40 0 C under argon. The reaction mixture was stirred at -40 0 C for 40 min, then 4-(4-butylpiperidin-1-yl)-N-methoxy-N-methylbutyramide (135 mg, 0.5 mmol) in THF (1 ml) was added. The reaction was stirred at -40 0
C
for 30 min, then NH 4 CI (sat. aq., 1 ml) was added and the reaction warmed to room temperature. The product was extracted with ethyl acetate (2 x 20 ml) and the organic layer was washed with water (10 ml), dried (K 2 C0 3 filtered and concentrated in vacuo. The WO 01/83472 PCT/US01/13561 product was purified on a Isco CombiFlash Sq 16x (4.1g silica column, eluting heptanes 0 min), 0-15% ethyl acetate in heptanes (20 min), 15% ethyl acetate in heptanes (15 min), all C- solvents Et 3 Yield 61 mg The hydrochloride salt was formed by addition Sof HCl (4M in dioxane) and recrystallised from methanol-diethyl ether to give a white S 5 precipitate that was filtered and dried. 'H NMR (free base, CDC1 3 8 0.87 3H), 1.10-1.30 cN 9H), 1.59 (br. d, 2H), 1.93 2H), 1.99 (tt, 2H), 2.40 2H), 2.87 2H), 2.96 2H), 7.30 1H), 7.45 1H), 7.48 1H), 7.57 1H), 7.69 1H).
Cc Example 49. 1-(3-Bromo-benzojb]thiophen-2-yl)-4-(4-butylpiperidin-l-yl)-butan-1- 00 one (53) (45NK108). t-BuLi in pentanes (0.48 ml, 0.8 mmol, 1.7M) was added drop wise to CN 10 3-bromo-benzo[b]thiophene (213 mg, 1.0 mmol) in THF (4 ml) at -78 0 C under argon. The l^- Sreaction mixture was stirred at -78 0 C for 40 min, then 4-(4-butylpiperidin-1-yl)-N-methoxy- C.1 N-methyl -butyramide (135 mg, 0.5 mmol) in THF (1 ml) was added. The reaction was stirred at -78 0 C for 30 min, then NH 4 Cl (sat. aq., 1 ml) was added and the reaction warmed to room temperature. The product was extracted with ethyl acetate (2 x 20 ml) and the organic layer was washed with water (10 ml), dried (K 2 CO3), filtered and concentrated in vacuo. The product was purified on a Isco CombiFlash Sq 16x (4.1g silica column, eluting heptanes min), 0-15% ethyl acetate in heptanes (20 min), 15% ethyl acetate in heptanes (15 min), all solvents Et 3 Yield 18 mg The hydrochloride salt was formed by addition of HC1 (4M in dioxane) and recrystallised from methanol-diethyl ether to give a white precipitate that was filtered and dried. 1H NMR (free base, CDCl 3 8 0.88 3H), 1.12-1.28 9H), 1.62 (br. d, 2H), 1.94 2H), 2.02 (tt, 2H), 2.45 2H), 2.92 (br. d, 2H), 31.8 (t, 2H), 7.51 2H), 7.83 1H), 7.98 1H).
Example 50. 1-(3-Benzo[b]thiophen-2-yl-propyl)-4-butylpiperidine (54) (45NK124).
n-BuLi in heptanes (0.75 ml, 1.2 mmol, 1.6M) was added drop wise to benzo[b]thiophene (134 mg, 1.0 mmol) in THF (4 ml) at -5 0 C under argon. The reaction mixture was stirred at 0 C for 15 min, then 1-chloro-3-iodopropane (151 pl, 1.2 mmol) and copper iodide (19 mg, 0.1 mmol) were added. The reaction was stirred at -5 0 C for 1 h, then at room temperature for 0.5 h. Water (5 ml) was added, the product was extracted with diethyl ether (2 x 10 ml) and the organic layer was dried (K 2 C0 3 filtered and concentrated in vacuo. The product was purified by column chromatography ethyl acetate in heptanes) to give 2- (3-chloro-propyl)-benzo[b]thiophene (93 mg, 'H NMR (CDCI 3 8 2.22 (tt, 2H), 3.10 (dt, 2H), 3.61 2H), 7.06 1H), 7.30 2H), 7.69 1H), 7.78 1H).
2-(3-Chloro-propyl)-benzo[b]thiophene (53 mg, 0.25 mmol), 4-butylpiperidine (36 mg, 0.25 WO 01/83472 PCT/US01/13561 mmol), sodium iodide (75 mg, 0.5 mmol) and sodium carbonate (53 mg, 0.5 mmol) in acetonitrile (2 ml) were shaken at 80 0 C for 18 h, then the reaction was cooled to room temperature. Water (5 ml) was added and the product was extracted with ethyl acetate (2 x dried (K 2
CO
3 filtered and concentrated in vacuo. The product was purified by 5 column chromatography (0-15% ethyl acetate in heptanes Et 3 N) to yield the title c- compound 54. Yield 29 mg The hydrochloride salt was formed by addition of HCI (4M in dioxane) and recrystallised from methanol-diethyl ether to give a white precipitate that was filtered and dried. 'H NMR (CD 3 OD): 8 0.91 3H), 1.32 6H), 1.39 2H), 00 1.55 1H), 1.96 (br. d, 2H), 2.19 (tt, 2H), 2.93 2H), 3.04 2H), 3.14 2H), 3.53 C 10 2H), 7.14 (br. s, 1H), 7.26 1H), 7.31 1H), 7.68 1H), 7.77 1H).
SExample 51. 1-(3-Benzofuran-2-yl-propyl)-4-butylpiperidine (55) (56NK03).
C n-BuLi in heptanes (1.5 ml, 2.4 mmol, 1.6M) was added drop wise to benzofuran (236 mg, mmol) in THF (5 ml) at -20 0 C under argon. The reaction mixture was stirred at -15 0
C
for 30 min, then 1-chloro-3-iodopropane (322 pl, 3.0 mmol) and copper iodide (38 mg, 0.2 mmol) were added. The reaction was stirred at -15 0 C for 1 h, then NH 4 Cl (sat. aq., 5 ml) was added. The product was extracted with diethyl ether (2 x 30 ml) and the organic layer was washed with brine (10 ml), dried (K 2
CO
3 filtered and concentrated in vacuo. The product was purified by column chromatography diethyl ether in heptanes) to give 2-(3-chloropropyl)-benzofuran (101 mg, 'H NMR (CDC13): 8 2.23 (tt, 2H), 2.97 (dt, 2H), 3.62 (t, 2H), 6.45 1H), 7.21 2H), 7.42 1H), 7.50 1H).
2-(3-Chloro-propyl)-benzofuran (101 mg, 0.52 mmol), 4-butylpiperidine (74 mg, 0.52 mmol), sodium iodide (156 mg, 1.04 mmol) and sodium carbonate (110 mg, 1.04 mmol) in acetonitrile (2 ml) were shaken at 80 0 C for 18 h, then the reaction was cooled to room temperature. Water (1 ml) was added, the product was extracted with ethyl acetate (2 x 2ml), and the organic layer loaded onto a Varian SCX ion exchange column. The column was washed with methanol (2 column volumes)and the product was eluted from the column using ammonium hydroxide in methanol (2 column volumes). The solute was concentrated in vacuo, dissolved up in acetone, dried (K 2 CO3) and concentrated in vacuo. The product was purified by column chromatography (0-12% ethyl acetate in heptanes Et 3 N) to yield the title compound 55. Yield 86 mg The hydrochloride salt was formed by addition of HCI (4M in dioxane) and recrystallised from methanol-diethyl ether to give a white flaky solid that was filtered and dried. H NMR (CD30D): 8 0.90 3H), 1.30 6H), 1.48 (m, WO 01/83472 PCT/US01/13561 3H), 1.95 (br. d, 2H), 2.21 4H), 2.91 4H), 3.16 2H), 3.55 (br. d, 2H), 6.57 1H), 7.17 2H), 7.38 2H), 7.48 1H).
SExample 52. 4-Butyl-l-[3-(3-methyl-benzofuran-2-yl)-propyl]-plperidine (56) S(56NK04). n-BuLi in heptanes (1.5 ml, 2.4 mmol, 1.6M) was added drop wise to 3methylbenzofuran (264 mg, 2.0 mmol) in THF (5 ml) at -20°C under argon. The reaction C mixture was stirred at -15°C for 30 min, then 1-chloro-3-iodopropane (322 pl, 3.0 mmol) and copper iodide (38 mg, 0.2 mmol) were added. The reaction was stirred at-15 0 C for 1 h, then NH 4 Cl (sat'd aq., 5 ml) was added. The product was extracted with diethyl ether (2 x S ml) and the organic layer was washed with brine, (10ml) dried (K 2 CO3), filtered and 10 concentrated in vacuo. The product was purified by column chromatography diethyl ether in heptanes) to give 2-(3-chloro-propyl)-3-methylbenzofuran (25 mg, 11 NMR Ci (CDC13): 5 2.19 (tt, 2H), 2.22 3H), 2.94 2H), 3.57 2H), 7.22 2H), 7.38 1H), 7.44 1H).
2-(3-Chloro-propyl)-3-methylbenzofuran (25 mg, 0.12 mmol), 4-butylpiperidine (17 mg, 0.12 mmol), sodium iodide (35 mg, 0.24 mmol) and sodium carbonate (25 mg, 0.24 mmol) in acetonitrile (2 ml) were shaken at 80 0 C for 18 h, then the reaction was cooled to room temperature. Water (1 ml) was added, the product was extracted with ethyl acetate (2 x 2ml) and the organic layer loaded onto a Varian SCX ion exchange column. The column was washed with methanol (2 column volumes), then the product was eluted from the column using 10% ammonium hydroxide in methanol (2 column volumes). The solute was concentrated in vacuo, dissolved in acetone, dried (K 2
CO
3 and concentrated in vacuo. The product was purified by column chromatography (0-12% ethyl acetate in heptanes +0.1% Et 3 N) to yield the title compound 56. Yield 14 mg The hydrochloride salt was formed by addition ofHC1 (4M in dioxane) and recrystallised from methanol-diethyl ether to give a white solid that was filtered and dried. 'H NMR (CD30D): 8 0.91 3H), 1.28-1.45 8H), 1.55 1H), 1.96 (br. d, 2H), 2.17 2H), 2.22 3H), 2.89 2H), 2.94 2H), 3.14 2H), 3.54 2H), 7.20 2H), 7.34 1H), 7.45 1H).
Example 53. 4-Butyl-l-[3-(5-fluoro-3-methyl-benzo[b]thiophen-2-yl)-propyl]piperldine (57) (56NK05). n-BuLi in heptanes (1.5 ml, 2.4 mmol, 1.6M) was added drop wise to 5-fluoro-3-methyl-benzo[b]thiophene (332 mg, 2.0 mmol) in THF (5 ml) at -20 0
C
under argon. The reaction mixture was stirred at -15 0 C for 30 min, then 1-chloro-3iodopropane (322 gl, 3.0 mmol) and copper iodide (38 mg, 0.2 mmol) were added. The reaction was stirred at -15°C for 1 h, then NH 4 C1 (sat'd aq., 5 ml) was added. The product WO 01/83472 PCT/US01/13561 was extracted with diethyl ether (2 x 30 ml) and the organic layer was washed with brine dried (K 2
CO
3 filtered and concentrated in vacuo. The product was purified by C column chromatography diethyl ether in heptanes) to give 2-(3-chloro-propyl)-5fluoro-3-methyl-benzo[b]thiophene (180 mg, 'H NMR (CDCl 3 8 2.19 (tt, 2H), 2.22 3H), 2.94 2H), 3.57 2H), 7.04 (dt, 1H), 7.28 (dd, 1H), 7.66 (dd, 1H).
C.1 2-(3-Chloro-propyl)-5-fluoro-3-methyl-benzo[b]thiophene (180 mg, 0.74 mmol), 4butylpiperidine (212 mg, 0.74 mmol), sodium iodide (225 mg, 1.48 mmol) and sodium c carbonate (159 mg, 1.48 mmol) in acetonitrile (2 ml) were shaken at 80°C for 18 h, then the 00 reaction was cooled to room temperature. Water (1 ml) was added, the product was extracted c- 10 with ethyl acetate (2 x 2ml), and the organic layer loaded onto a Varian SCX ion exchange Scolumn. The column was washed with methanol (2 column volumes), then the product was C.1 eluted from the column using 10% ammonium hydroxide in methanol (2 column volumes).
The solute was concentrated in vacuo, dissolved in acetone, dried (K 2 CO3) and concentrated in vacuo. The product was purified by column chromatography (0-12% ethyl acetate in heptanes Et 3 N) to yield the title compound 57. Yield 185 mg The hydrochloride salt was formed by addition ofHC1 (4M in dioxane) and recrystallised from methanol-diethyl ether to give white crystals that were filtered and dried. 'H NMR (CD 3
OD):
8 0.90 3H), 1.31 6H), 1.37-1.62 3H), 1.94 (br. d, 2H), 2.15 2H), 2.31 3H), 2.92 (br. t, 2H), 3.01 (tm, 2H), 3.14 2H), 3.54 (br. d, 2H), 7.06 (dt, 2H), 7.34 (dd, 1H), 7.73 (dd, 1H).
Example 54. 2-(3-Iodo-propyl)-benzo[b]thiophene A mixture of 2-(3-Chloropropyl)-benzo[b]thiophene (902 mg, 4.28 mmol) and sodium iodide (1.29 g, 8.6 mmol) was heated to 50 0 C in acetone (5ml) for 72 h, then cooled to room temperature. Aqueous sodium thiosulphate (1 M, 10 ml) was added and the product was extracted with diethyl ether (2 x 20ml). The organic layer was dried (K 2 C0 3 filtered and concentrated in vacuo to give a white solid that was filtered through Celite and eluted with heptanes. The filtrate was concentrated in vacuo to give a white solid. Yield 1.038g 'H NMR (CDC13): 6 2.24 (tt, 2H), 3.04 (dt, 2H), 3.27 2H), 7.07 1H), 7.28 2H), 7.68 1H), 7.77 1H).
General Procedure for the Alkylation of Amines.
2-(3-Iodo-propyl)-benzo[b]thiophene (33 mg, 0.11 mmol) in DCM (240 jtl) was added to the amine (0.10 mmol) in DCM (200 tl) and the reaction was shaken at room temperature for 18 h. DCM (1 ml) was added followed by macroporous triethylammonium WO 01/83472 PCT/US01/13561 methylpolystyrene carbonate (50 mg, 3.06 mmol/g loading, Argonaut Technologies) and the reaction was shaken at room temperature for 1 h. Polystyrene methylisocyanate (60 mg, 1.25 C mmol/g, Argonaut Technologies) was added and the reaction was shaken at room S temperature for 2 h. The reaction was than loaded onto a Varian SCX ion exchange column.
The column was washed with methanol (2 column volumes) and the product was eluted from Ci the column using 10% ammonium hydroxide in methanol (2 column volumes). The solute was concentrated in vacuo, dissolved in acetone, dried (K 2 C0 3 and concentrated in vacuo.
Example 55. 1-(3-Benzo[b]thiophen-2-yl-propyl)-4-methylpiperidine (59) 00 (56NK38). The reaction was carried out according to the general procedure using 4-methyl- C 10 piperidine (17 mg, 0.10 mmol) to yield 14 mg of 1-(3-benzo[b]thiophen-2-yl-propyl)- 0 4-methylpiperidine. H NMR (CD30D): 6 0.92 3H), 1.27 2H), 1.34 1H), 1.63 (m, CN 2H), 1.94 4H), 2.40 2H), 2.91 4H), 7.00 1H), 7.28 2H), 7.66 1H), 7.76 1H).
Example 56. 1-(3-Benzo[b]thiophen-2-yl-propyl)-4-benzylpiperidine (60) (56NK40).
The reaction was carried out according to the general procedure using 4-benzyl-piperidine (17 mg, 0.10 mmol) to yield 16 mg of 1-(3-benzo[b]thiophen-2-yl-propyl)-4-benzylpiperidine. 'H NMR (CD 3 OD): 6 1.29 2H), 1.47-1.67 4H), 1.92 4H), 2.38 (m, 2H), 2.52 3H), 2.88 4H), 7.03 1H), 7.10-7.15 3H), 7.18-7.28 4H), 7.63 1H), 7.72 1H).
Example 57. 1-(3-Benzo[b]thiophen-2-yl-propyl)-4-(2-methoxy-phenyl)-piperidine (61) (56NK42). The reaction was carried out according to the general procedure using 4-(2methoxy-phenyl)-piperidine (17 mg, 0.10 mmol) to yield 17 mg of 1-(3benzo[b]thiophen-2-yl-propyl)-4-(2-methoxy-phenyl)-piperidine. 'H NMR (CD30D): 8 1.77 4H), 1.98 2H), 2.10 2H), 2.46 2H), 2.94 3H), 3.04 2H), 3.79 3H), 6.88 2H), 7.06 (br. s, 1H), 7.13 2H), 7.26 2H), 7.65 1H), 7.73 1H).
Example 58. 2-(3-Bromopropyl)-2H-benzotriazole (35AKU-17-2) To a solution of 1,3-dibromopropane (510 jrl, 5.0 mmol) in dimethylformamide (10 ml) was added benzotriazole (600 mg, 5.0 mmol) and KOH (430 mg, 7.7 mmol). After stirring for 20 h at room temp, water (10 ml) and ethyl acetate (10 ml) were added. The phases were separated and the aqueous phase was re-extracted with ethyl acetate (3 x 15 ml). The combined organic phases were dried over MgSO4 and concentrated in vacuo, giving 1.44 g of the crude material. The crude product was purified by flash chromatography (0-10% methanol in DCM), yielding 274 mg of the title compound 62. TLC methanol in DCM): Rf= WO 01/83472 PCT/US01/13561 0.7. 1 H-NMR (400 MHz, CDC13): 8= 7.88-7.83 (2H, 7.41-7.36 (2H, 4.91 (2H, t); 0 3.44 (2H, 2.66 (2H, m).
C-I Example 59. 2-[3-(4-Butylpiperidin-1-yl)-propyl]-2H-benzotriazole (63) 18). To a solution of 2-(3-bromopropyl)-2H-benzotriazole (274 mg, 1.14 mmol) in dimethylformamide (5 ml) was added a solution of 4-butylpiperidine (142 mg, 1.0 mmol) and CI KOH (125 mg, 2.2 mmol) in dimethylformamide (5 ml). The mixture was stirred for 20 h at room temp., and ethyl acetate (10 ml) and water (10 ml) were then added. The phases were c separated and the aqueous phase was re-extracted with ethyl acetate (3 x 20 ml). The 00 combined organic phases were dried over MgSO4 and concentrated in vacuo to produce 383 CI 10 mg of the crude material. The crude product was purified by flash chromatography (0-10% Smethanol in DCM) yielding 232 mg of the title compound 63. The oxalate-salt was CI prepared from oxalic acid (1.1 eq.) in diethyl ether. TLC (10% methanol in DCM): Rf= 0.4.
HPLC-MS (Method M 301.2 (UV/MS(%)=100/89). 'H-NMR (400 MHz, CDCI 3 8= 7.86 (2H, 7.37 (2H, 4.78 (2H, 2.93 (2H, 2.45 (2H, 2.34 (2H, 1.94 (2H, 1.61 (2H, 1.32-1.13 (9H, 0.88 (3H, t).
Example 60. 1-(3-Bromopropyl)-1H-benzotriazole (35AKU-17-1) To a solution of 1,3-dibromopropane (510 pl, 5.0 mmol) in dimethylformamide (10 ml) was added benzotriazole (600 mg, 5.0 mmol) and KOH (430 mg, 7.7 mmol). After stirring for 20 h at room temp., water (15 ml) and ethyl acetate (15 ml) were added. The phases were separated and the aqueous phase was re-extracted with ethyl acetate (3 x 20 ml). The combined organic phases were dried over MgSO4 and concentrated, giving 1.44 g of the crude product. The crude product was purified by flash chromatography (0-10% methanol in DCM) yielding 705 mg of the title compound 64. TLC methanol in DCM): Rf= 0.4. HPLC-MS (Method 239.9 (UV/MS(%)=52/58).
Example 61. 1-[3-(4-Butylpiperidin-1-yl)-propyl]-lH-benzotriazole (65) 19). To a solution of 1-(3-bromopropyl)-lH-benzotriazole (705 mg, 1.6 mmol) in dimethylformamide (5 ml) was added a solution of4-butylpiperidine (140 mg, 1.0 mmol) and KOH (240 mg, 4.3 mmol) dissolved in dimethylformamide (5 ml). The mixture was stirred for 20 h at room temp. Ethyl acetate (10 ml) and water (10 ml) were then added. The phases were separated and the aqueous phase was re-extracted with ethyl acetate (3 x 15 ml). The combined organic phases were washed with brine, dried over MgSO4 and evaporated to dryness, giving 776 mg of the crude material. The crude product was purified by flash chromatography (0-10% methanol in DCM) yielding 146 mg of the title compound WO 01/83472 PCT/US01/13561 The oxalate-salt was prepared from oxalic acid (1.1 eq.) in diethyl ether. TLC (10% methanol in DCM): Rf 0.4. HPLC-MS (Method 301.2 (UV/MS(%)=100/99). 'H-NMR (400 (N MHz, CDCl 3 6= 8.05 (1H, 7.62-7.33 (3H, 4.71 (2H, 2.85 (2H, 2.34 (2H, m); 6 2.22 (2H, 1.90 (2H, 1.67 (2H, 1.33-1.16 (9H, 0.89 (3H, t).
Example 62. 1-[3-(4-Butylpiperidin-l-yl)-propyl]-lH-indole-3-carbaldehyde (66)
C
(35AKU-24). To a solution of 1,3-dibromopropane (410 jL1, 4.0 mmol) in dimethylformamide (5 ml) was added a solution of 1H-indole-3-carboxaldehyde (582 mg, mm mmol) and KOH (456 mg, 8.1 mmol) in dimethylformanide (5 ml). After stirring for 24 h, 4- 00 N butylpiperidine (359 mg, 2.0 mmol) and additional KOH (200 mg, 3.6 mmol) were added.
1 10 After stirring for 20 h, water and ethyl acetate were added. The phases were separated and the Saqueous phase was re-extracted with ethyl acetate (3 x 15 ml). The combined organic phases C were washed with brine, dried over MgSO4 and evaporated to dryness, giving 1.04 g of the crude product. The crude product was purified by flash chromatography (0-10% methanol in DCM) yielding 252 mg of the title compound 66. TLC (10% methanol in DCM): Rf= 0.5. HPLC-MS (Method M 327.2 (UV/MS(%)=99/96).
Example 63. {1-[3-(4-Butylpiperidin-l-yl)-propyl]-1H-indol-3-yl}-methanol (67) (35AKU-26). To a solution of 1-[3-(4-butylpiperidin-l-yl)-propyl]-1H-indole-3carbaldehyde (120 mg, 0.37 mmol) in methanol (2 ml) was slowly added a solution of NaBH4 (9.2 mg, 0.24 mmol) in 2 0 Il of2M NaOH 1 ml of water. The mixture was then stirred for 20 h at room temp. Additional NaBH 4 (12 mg, 0.32 mmol) was added and the mixture stirring for an additional 2 h. Another portion of NaBH 4 (14 mg, 0.37 mmol) was added and the mixture was stirred overnight. Methanol was partly removed using a Rotavap, and ethyl acetate (10 ml) and water (10 ml) were added. The phases were separated and the aqueous phase was re-extracted with ethyl acetate (3 x 15 ml). The combined organic phases were dried over MgSO4 and evaporated to dryness giving 93 mg of the title compound 67.
TLC (10% methanol in DCM): Rf= 0.4. HPLC-MS (Method M 329.2 'H-NMR (400 MHz, CDC13): 8= 7.72 (1H, 7.36 (1H, 7.25-7.10 (3H, 4.86 (1H, 4.15 (2H, 2.84 (2H, 2.26 (2H, 1.99 (2H, 1.86 (2H, t); 1.71-1.62 (4H, 1.34-1.16 (9H, 0.90 (3H, t).
Example 64. 1-[3-(4-Butylpiperidin-1-yl)-propyl]-2-phenyl-lH-benzoimidazole (68) (35AKU-28). To a solution of 1,3-dibromopropane (205 p.l, 2.0 mmol) in dimethylformamide (5 ml) was added 2-phenylbenzimidazole (389 mg, 2.0 mmol) and KOH (266 mg, 4.7 mmol). After stirring for 16 h at room temp., 4-butylpiperidine hydrochloride WO 01/83472 PCT/US01/13561 (176 mg, 1.0 mmol) was added. After 24 h stirring, additional KOH (270 mg, 4.8 mmol) was S added and the mixture heated at 90 0 C for 3 h. After cooling, water (10 ml) and ethyl acetate S (10 ml) were added. The phases were separated and the aqueous phase was re-extracted with Sethyl acetate (3 x 15 ml). The combined organic phases were washed with brine, dried over 5 MgSO4 and concentrated in vacuo to produce 643 mg of the crude material. The crude cI product was purified by flash chromatography (0-10% methanol in DCM) yielding 71 mg of the title compound 68. TLC (10% methanol in DCM): R 0.7. HPLC-MS (Method 376.3 (UV/MS(%)=100/100). 'H-NMR (400 MHz, CDCl 3 6= 7.85-7.27 (9H, m); 00 4.32 (2H, 2.73 (2H, 2.25 (2H, 1.95 (2H, 1.81 (2H, 1.62 (2H, 1.33-1.08 c 10 (9H, 0.90 (3H, t).
0 Example 65. 1-[3-(4-Butylpiperidin-1-yl)-propyl]-3-chloro-lH-indazole (69) CN- (35AKU-34). To a solution of 1,3-dibromopropane (205 pil, 2.0 mmol) in dimethylformamide (5 ml) was added 3-chloroindazole (306 mg, 2.0 mmol) and KOH (400 mg, 7.1 mmol). After stirring the suspension for 16 h, 4-butylpiperidine hydrochloride (180 mg, 1.0 mmol) and dimethylformamide (2 ml) were added. After 20 h stirring, water (10 ml) and ethyl acetate (10 ml) were added. The phases were separated and the aqueous phase was re-extracted with ethyl acetate (3 x 15 ml). The combined organic phases were washed with brine, dried over MgSO4 and concentrated in vacuo to give 500 mg of the crude product. The crude product was purified by flash chromatography (0-10% methanol in DCM) yielding 121 mg of the title compound 69. The oxalate-salt was prepared from oxalic acid (1.1 eq.) in diethyl ether. TLC (10% methanol in DCM): Rf= 0.5. HPLC-MS (Method M 334.1 (UV/MS(%)=100/100). 'H-NMR (400 MHz, CDC13): 8= 7.68-7.16 (4H, 4.43 (2H, t); 3.13 (2H, 2.62 (2H, 2.35 (2H, 2.22 (2H, 1.76 (2H, 1.61-1.46 (2H, 1.36- 1.24 (7H, 0.89 (3H, t).
Example 66. 1-[3-(4-Butylpiperidin-l-yl)-propyl]-6-nitro-lH-indazole (70) To a solution of 1,3-dibromopropane (205 l.1, 2.0 mmol) in dimethylformamide (20 ml) was added 6-nitroindazole (325 mg, 2.0 mmol) and K 2 C0 3 (590 mg, 4.3 mmol). After stirring the suspension for 20 h, 4-butylpiperidine hydrochloride (178 mg, 1.0 mmol) and dimethylformamide (5 ml) were added. After 20 h stirring, water (15 ml) and ethyl acetate (15 ml) were added. The phases were separated and the aqueous phase was re-extracted with ethyl acetate (3 x 20 ml). The combined organic phases were washed with brine, dried over MgSO4 and concentrated in vacuo to produce 511 mg of the crude product. The crude product was purified by ion exchange chromatography (washout with 10% aq. NH 4 OH WO 01/83472 PCT/US01/13561 in methanol) and flash chromatography (0-10% methanol in DCM) yielding 21 mg of the title compound 70. The oxalate-salt was prepared from oxalic acid (1.1 eq.) in diethyl ether. TLC (10% methanol in DCM): Rf 0.4. HPLC-MS (Method M= 345.1 'H-NMR (400 MHz, CDCl 3 8= 8.70 (1H, 8.07 (1H, 7.90 (1H, 7.75 (1H, 4.56 (2H, 2.86 (2H, 2.32 (2H, 2.24 (2H, 1.92 (2H, 1.68 C, (2H, 1.35-1.16 (9H, 0.89 (3H, t).
Example 67. Benzo[d]isoxazol-3-ol (35AKU-44) To a solution of salicylhydroxamic acid (1.53 g, 10 mmol) in THF (40 ml) was added a solution of C carbonyldiimidazole (1.62 g, 20 mmol) in tetrahydrofuran (20 ml). The mixture was stirred at C 10 reflux for 4 hrs. before evaporation to dryness. Water (20 ml) and cone. HC1 (5 ml) were 0 added and the solution was refrigerated (5 0 C) for 30 min. The resulting precipitate was C1 collected by filtration and washed with 2M HC1. The solid material was dissolved in methanol and concentrated in vacuo yielding 725 mg of the title compound 71. TLC methanol in DCM): Rf= 0.2. HPLC-MS (Method M= 136.1 (UV/MS(%)94/100). 'H-NMR (400 MHz, CDC1 3 MeOD): 5= 7.73 (1H, 7.56 (1H, m); 7.38 (1H, 7.28 (1H, m) 3.87 (1H, s).
Example 68. 3-(2-Chloroethoxy)-benzo[d]isoxazole (35AKU-45 To a solution of 1-bromo-2-chloroethane (250 il, 3.0 mmol) in dimethylformamide (10 ml) was added benzo[d]isoxazol-3-ol (400 mg, 3.0 mmol) and K 2 C0 3 (440 mg, 3.2 mmol). The mixture was stirred for 20 h and then heated at 80°C for 1 hr. Ethyl acetate (10 ml) and water (10 ml) were added. The phases were separated and the aqueous phase was re-extracted with ethyl acetate (3 x 15 ml). The combined organic phases were washed with brine, dried over MgSO4 and concentrated in vacuo to give 543 mg of the crude product. The crude product was purified by flash chromatography (0-10% methanol in DCM) yielding 378 mg of the title compound 72. TLC (10% methanol in DCM): Rf 0.8. 'H-NMR (400 MHz, CDC1 3 6= 7.68 (1H, 7.55 (1H, 7.44 (1H, 7.28 (1H, 4.72 (2H, 3.94 (2H, t).
Example 69. 3-[2-(4-Butylpiperidin-l-yl)-ethoxy]-benzo[d]isoxazol (73) 46). A solution of 3-(2-chloroethoxy)-benzo[d]isoxazole (378 mg, 1.9 mmol), 4butylpiperidine hydrochloride (270 mg, 1.5 mmol) and K 2 C0 3 (537 mg, 3.9 mmol) dissolved in dimethylformamide (15 ml) was heated to 80 0 C and stirred for 24 h. After cooling to room temp., water (15 ml) and ethyl acetate (15 ml) were added. The phases were separated and the aqueous phase was re-extracted with ethyl acetate (3 x 20 ml). The combined organic phases were washed with brine, dried over MgSO4 and concentrated in vacuo to give 586 mg of the WO 01/83472 PCT/US01/13561 crude material. The crude product was purified by flash chromatography methanol in DCM) yielding 157 mg of the title compound 73. The oxalate-salt was prepared from c, oxalic acid (1.1 eq.) in diethyl ether. TLC methanol in DCM): Rf 0.3. HPLC-MS (Method M 303.1 (UV/MS(%)=100/100). 'H-NMR (400 MHz, CDC1 3 8= 7.69-7.22 (4H, 4.57 (2H, 2.99 (2H, 2.88 (2H, 2.11 (2H, 1.68 (2H, 1.32-1.18 (9H, 0.89 (3H, t).
Example 70. 3-(1H-Indol-3-yl)-propan-l-ol (74) (32HS28). A suspension of r lithiumaluminium hydride (4.68 g, 126 mmol) in anhydrous diethyl ether (230 ml) was stirred O heavily. 3-Indolepropionic acid (10.0 g, 53 mmol) was dissolved in anhydrous diethyl ether C 10 and added drop wise while the reaction was at reflux. The reaction mixture was further Srefluxed for 2h and then stirred at room temperature (rt) overnight. Water (25 ml) was added Ci slowly, followed by an aqueous solution ofH 2
SO
4 (1:3 H 2 0/conc. H 2 S0 4 (20 ml). The resulting clear mixture was extracted with diethyl ether (3 x 110 ml), and the combined organic phases were washed with brine, dried (Na 2
SO
4 filtered and concentrated in vacuo to give a crude oil of the title compound (74) (1.8 The crude material was used without further purification.
Example 71. 3-[3-(4-Butyl-piperldin-l-yl)-propyl]-lH-lndole hydrochloride (32HS34). The crude 3-(1H-indol-3-yl)-propan-l-ol (1.8 g) was dissolved in anhydrous THF and cooled to 40 0 C. Triethylamine (720 mg, 7.1 mmol) was added by syringe, followed by methanesulfonyl chloride (750 mg, 6.5 mmol). The mixture was allowed to warm to 20 0
C,
and then filtered and concentrated in vacuo to yield a crude product that was redissolved in DCM and washed with water. The organic phase was dried over MgSO4, filtered and concentrated in vacuo to a brown oil. This material was used immediately without further purification.
4-n-Butylpiperidine hydrochloride (967 mg, 5.4 mmol) and Na 2
CO
3 (1.28 g, 12 mmol) were suspended in DME, stirred at rt for 30 min, and then added to the crude material in DME. The resulting mixture was stirred at 82 0 C overnight. The mixture was cooled prior to addition of ethyl acetate (15 ml) and water (15 ml), extracted with ethyl acetate (3 x 20 ml). The combined organic phases were washed with brine, dried (Na 2
SO
4 and concentrated in vacuo. Purification by preparative HPLC followed by treatment with HCI in dioxane (4M, 2 ml) produced the title compound (75) as white crystals after washing with DCM. Yield: 130 mg, 0.3% (overall). HPLC-MS (Method M= 298.3 (UV/MS(%)=100/100). 'H-NMR (400 MHz, CD 3 0D): 8 7.55 1H), 7.34 1H), 7.09 (m, WO 01/83472 PCT/US01/13561 2H), 7.01 1H9), 3.46 2H), 3.09 2H), 2.87 5H), 2.14 2H) 1.91 2H), 1.58- 1.24 9H), 0.90 3H).
Example 72. 4-(4-Butylpiperidine-1-yl)-butyric acid methyl ester (76) (40-LH-58).
STo a solution.of 4-bromo-butyric acid methyl ester (1.35 g, 7.5 mmol) in dry acetonitrile ml) was added 4-butylpiperidine (1.00 g, 7.1 mmol) and K 2 C0 3 (1.10 g, 7.8 mmol). After CI stirring at rt for 12 h, the reaction mixture was evaporated to dryness followed by addition of water (15 ml). The aqueous phase was extracted with ethyl acetate (3 x 20 ml) and the N combined organic phases were dried (Na 2
SO
4 and concentrated in vacuo to produce 1.71 g S of the crude title compound 76. The crude product was purified by flash chromatography ,I 10 (MeOH ethyl acetate; 2: 8) to give the pure title compound. Yield 1.27 g (74 'H NMR 0 (CD30D): 8 3.65 3H), 2.93 2H), 2.33 4H), 1.98 2H), 1.81 (qv, 2H), 1.69 2H), CN 1.35-1.18 9H), 0.90 3H).
Example 73. 2-[3-(4-Butylpiperidin-1-yl)-propyl]-l-methyl-lH-benzimidazole (77) (40-LH-59B). A mixture of N-methyl-benzene-1,2-diamine (68 mg, 0.56 mmol) and 4-(4- Butylpiperidine-l-yl)-butyric acid methyl ester (130 mg, 0.54 mmol) in polyphosphoric acid (1 ml) was heated and shaken in a sealed vial at 150 0 C for 1.5 h. The reaction mixture was poured into an ice-cold bath (NaOH (4N) ice 1:1) with stirring, upon which a grey precipitate formed. The grey solid was filtered and washed with cold ether. The oxalate-salt was prepared from oxalic acid (1.1 eq.) in diethyl ether. Yield 141 mg (92 'H NMR (CDC13): 8 7.71 1H), 7.30-7.19 3H), 3.74 3H), 2.90 4H), 2.43 2H), 2.06 (qv, 2H), 1.89 2H), 1.65 2H), 1.31-1.14 9H), 0.89 3H).
Example 74. IH-Indazole-3-carboxylic acid (2-(4-butylpiperldin)-l-yl-ethyl)-amide (78)(40-LH-70-17B). To a shaken solution of 1H-indazole-3-carboxylic acid (49 mg, 0.30 mmol) and N-hydroxysuccinimide (36 mg, 0.31 mmol) in dry DMF (2 ml) was added a solution of dicyclohexylcarbodiimide (62 mg, 0.30 mmol) in dry DMF (1 ml). The mixture was shaken for 16 h followed by addition of 2-(4-butylpiperidin-1-yl)-ethylamine (28 mg, 0.15 mmol). The reaction mixture was further shaken for another 24 h followed by filtration.
The organic phase was loaded onto a Varian SCX ion exchange column. The column was washed sequentially with methanol (5 ml), isopropanol (5 ml), and methanol (5 ml). The product was eluted from the column using 5 ammonium in methanol (5 ml). The solute was concentrated in vacuo, dissolved in acetone, dried (K 2 C0 3 and concentrated in vacuo to produce the title compound 78. Yield 47 mg (95 11 NMR (CD 3 OD): 8 8.21 1H), 7.56 WO 01/83472 PCT/US01/13561 1H), 7.40 (dt, 1H), 7.24 (dt, 1H), 3.59 2H), 3.01 (bd, 2H), 2.63 2H), 2.08 2H), 0 1.71 2H), 1.34-1.21 9H), 0.90 3H).
CN Example 75. 1-[3-(4-Butylpiperidin-1-yl)-propyl]-5-nitro-lH-indazole (79) (64LHY29-1); and Example 76. 2-[3-(4-butylpiperidin-1-yl)-propyl]-5-nitro-2H-indazole (80) (64LHY29-2). To a cooled solution (-78C) of 5-nitroindazole (41.20 mg, 0.25 mmol) C1 in THF (1 ml) was added a solution ofn-buthyllithium in hexane (1.5 M, 0.17 ml, 0.25 mmol) followed by addition of l-bromo-3-iodopropane (27 ll, 0.25 mmol). After 16 h at rt Cr the mixture was concentrated in vacuo. Methyl ethylketone (1 ml) and 4-butylpiperidine 00 (35.3 mg, 0.25 mmol) were added. The reaction mixture was shaken for 16 h at 0 CN 10 followed by filtration, and the organic layer was then evaporated to dryness. The solid was r- 0 dissolved in methanol (1 ml) prior to loading onto a Varian SCX ion exchange resin column.
C1 The column was washed with methanol (3 x 6 ml) and the product eluted with 10% NH 3 in methanol (5 ml). The solute was concentrated in vacuo. The two isomers were formed at a 1:1 ratio according to LC-MS analysis of the crude mixture. The two isomers were isolated after purification by preparative HPLC. 79 (64LHY29-1): 1 H-NMR (CDC1 3 6 0.88 3H), 1.18-1.33 9H), 1.73-1.64 (bd. d, 2H), 1.92 (bd. t, 2H), 2.21 (ddd, 2H), 2.30 (dd, 2 H), 2.85 (bd. d, 2H), 4.55 2H), 7.75 (ddd, 1H), 8.10 (dd, 1H), 8.24 1H), 8.73 (dd, 1H); 13 C-NMR (CDC13): 5 14.0, 22.8, 27.3, 28.9 32.3, 35.6, 36.1, 52.1, 53.9 54.7, 118.2, 119.2, 119.9, 120.1, 127.3, 143.0, 149.8; LC-MS: 445.2, tr 3 6 9 min. (64LHY29-2): 1 H-NMR (CDC1 3 8 0.90 3H), 1.14-1.38 9H), 1.62 (bd. d, 2H), 1.86 (bd. dd, 2H), 2.16 (ddd, 2H), 2.21 (dd, 2H), 2.75 (bd d, 2H), 4.50 2H), 7.59 (ddd, 1H), 8.21 1H), 8.25 (dd, 1H), 8.73 (dd, 1H); 13 C-NMR (CDC13): 8 14.3, 23.1, 27.3, 29.2, 32.8 (2C), 36.0, 36.5, 47.2, 54.2 55.2, 110.0, 119.1, 121.3, 123.0, 136.0, 141.8, 142.5; LC-MS: (M+H) 445.2, tr 5.30 min.
General Procedure for the Preparation of Indole Derivatives.
Indole (1.20 mmol) was taken up in dry DMF (3 ml) prior to addition of sodium hydride (2.50 mmol) at rt., followed by addition of 3-chloro-1-iodo-propane (0.20 g, mmol). The reaction mixture was shaken in a sealed vial at rt. for 16 h. 4-Butyl-piperidine (130 mg, 0.9 mmol) was added and the reaction mixture was further shaken at 50C for 72 h.
The mixture was filtered and the filtrate was loaded onto a Varian SCX ion exchange column.
WO 01/83472 PCT/US01/13561 The column was washed with methanol (10 ml, 2 column volumes) and the product was eluted from the column using 5% ammonium hydroxide in methanol (5 ml, 1 column N- volumes). The solute was concentrated in vacuc to produce the title compounds (79, Example 77. 1-[3-(4-Butyl-piperidin-1-yl)-propylJ-2-metlzyl-1H-lndole (81) 1-1-(0402)). The reaction was carried out according to the general procedure using 2-methyl- CI 1H-indole (157 mg, 1.20 romol). The crude product was fur-ther purified by flash chromatography (MeOH ethyl acetate; 1 to give the title compound 81. Yield 19 mg 'H NMiR(CDC 3 857.50 1H1), 7.31 1Hi), 7.12 (dt, 1H1), 00 7.04 (dt, 111), 6.23 1H1), 4.12 211), 2.87 2H), 2.44 3H), 2.31 211), 1.98-1.83 (in, N7 10 4H), 1.67 2H), 1.32-1.19 (in, 911), 0.89 311).
Example 78. 1-{1-[3-(4-Butyl-plperidin-1-yl)-propylJ-JH-indol-3-ylJ-ethanonse (82) c-I (55-LH-1-2-(1403). The reaction was carried out according to the general procedure using 1- (1H-indol-3-yl)-ethanone (191 mg, 1.20 mmol) to give the title compound 82. Yield 33 mg 1H NMR (CDCI 3 8 8.39-8.34 (mn, 1H), 7.80 11H), 7.41-7.36 (in, 1H1), 7.30-7.25 (in, 211), 4.24 2H), 2.80 2H), 2.21 2H1), 2.01 (qv, 211), 1.86 (t, 211), 1.69 2H), 1.32-1.19 (in, 911), 0.89 311).
Example 79. {1-[3-(4-Butyl-piperidin-1-yl)-propyl]-1H-indol-3-ylJ-acetonltrile (83) (55-LH-1-3-(1404). The reaction was carried out according to the general procedure using (lH-indol-3-yl)-acetonitrile (187 mg, 1.20 nimol) to give the title compound 83. Yield 33 mg (IJV/MS(%)=99/92); 'H NMIR (CDCI 3 8 7.55 111), 7.38 111), 7.24 111), 7.15 111), 4.17 211), 3.82 2H), 2.82 2H), 2.23 211), 1.98 (qv, 211), 1.85 211), 1.67 211), 1.33-1.17 (mn, 911), 0.89 311).
Example 80. 1-[3-(4-Butyl-piperidlni-1-yl)-propylJ-JH-indole-3-carbonitrile (84) (55-LH-1-4-(1405)). The reaction was carried out according to the general procedure using 1H-indole-3-carbonitrile (170 mg, 1.20 inmol) to give the title compound 84. Yield 30 mg (3 'H NMR (CDCI 3 8 7.75 111), 7.63 1H1), 7.45 111), 7.35-7.25 (in, 211), 4.25 211), 2.79 211), 2.20 211), 1.99 (qv, 211), 1.86 2H), 1.68 (d, 211), 1.33-1.18 (in, 911), 0.89 311).
General Procedure for the Preparation of Benzimidazole Derivatives.
Benzimidazole (0.60 mmol) was taken up in dry TI-IF (1 ml) prior to drop-wise addition of n-BuLi (1.6 M in Hexane) (413 0.66 nimol) at rt. The mixture was stirred for WO 01/83472 PCT/LJSOI/13561 in. followed by addition of 1,3-dibromo-propane (100 mg, 0.50 nunol) and then left at rt.
for 16 h. 4-Butyl-piperidine (64 mg, 0.45 inmol) was added and the reaction mixture was c-i shaken at 60"C for 72 h. The mixture was fltered and the filtrate concentrated in vacuc prior to purification by preparative HPLC.
Example 81. 1-[3-(4-Butyl-plperldni-1-yl)-propyl-S, 6-dim ethyl-JH-benzoimidazole c-i (85) (SS-LH-8-2 (138 The reaction was carried out according to the general procedure using 5,6-dimethyl-benzoirnidazole (88 mg, 0.60 inmol) to give the title compound 85. Yield mg 1H NMR (CDCl 3 5 7.78 1H), 7.55 1H), 7.18 1H), 00 4.20 2H), 2.81 2H), 2.39 3H), 2.37 3H), 2.22 2W), 2.00 (qv, 2H), 1.85 2H), N- 10 1.68 2H), 1.33-1.18 (in, 9H), 0.90 3H).
Example 82. 1-f3-(4-Butyl-piperidin-1-yl)-propyl]-5(6)-ditnetlzyl-1Hc-i beirzolmidazole (86) (55-LH-8-3 (1388)). The reaction was carried out according to the general procedure using 5-methyl-benzoiniidazole (79 mg, 0.60 mmol) to give the title compound (86) as a 50/50 midxture of the two regio isomers, according to 'H-NMR. Yield 42 mg (UV/MS(%)=100/100).
Example 83. -1-[3-(4-Butyl-plperidin-1-yl)-propylj-5-methoxy -JH-benzolmidazole (87) (55-LH-8-6 (1393)). The reaction was carried out according to the general procedure using 5-methoxy-benzoixnidazole (89 mng, 0.60 mmol) to give the title compound (87) as a 50150 mixture of the two regio isomers, according to 'H-NMR. Yield 62 mg -(UVIMS(%)--100/100).
Example 84. (1-[3-(4-Butyl-plperidin-1Z-yl)-propylJ-JH-benzolmidazol-2-ylJmethanol (88) (55-LH-8-9 (1400)). The reaction was carried out according to the general procedure using (1H-benzoimidazol-2-yl)-methanol (89 mng, 0.60 inmol) to give the title compound 88. Yield 56 mg (3 'H NMIR (CIDCI 3 8 7.69-7.65 (in, 1H), 7.32-7.28 (mn, 1H), 7.21-7.18 (mn, 2W), 4.88 2H), 4.38 2W), 2.70 2H), 2.18-2.06 (in, 4H), 1.74 2W, 1.58 2H), 1.24-1.14 (in, 9H), 0.81 3H).
Example 85. 1-[3-(4-Butyl-piperidin-1-yl)-propyl]-2-trifuoromethyl-JHbenzolmidazole (89) (55-LH-8-10 (1401)). The reaction was carried out according to the general procedure using 2-trifuoromethyl-1H-benzoimidazole (112 mg, 0.60 inmol) to give the title compound 89. Yield 48 mg 00/95); 1H NMvIR (CIDCl 3 8 7.78 1H), 7.74 1W, 7.49 1W, 7.41 1H), 4.48 2H), 2.86 2W), 2.41 2W, 2.08 (qv, 2W), 1.92 2H), 1.67 2H), 1.31-1.15 (in, 9W, 0.89 3H).
58 WO 01/83472 PCT/US01/13561 Example 86. (2-Trimethylstannanyl-phenyl)-carbamic acid tert-butyl ester (53MF36). To a solution ofphenyl-carbamic acid tert-butyl ester (10.02 g, 52 mmol) in dry DMF (150 ml) was dropwise added tert-Buli (1.7 M in hexane) (80 ml, 0.14 mol) at 70 0
C.
The reaction mixture was stirred for 30 min at 70 0 C and 2 h at 20 0 C before adding a solution of trimethyltinchloride in dry THF (1 M) (77.0 ml, 78 mmol). The reaction mixture CI was further stirred at 20 0 C for 1 h followed by addition of an aqueous ammonium chloride solution (100 ml). The mixture was extracted with diethyl ether (3 x 300 ml) and the
C
combined organic phases were dried over MgSO4 and evaporated in vacuo to give the crude O title compound (90) (17.0 which was used in the next reaction without further purification.
c 10 Example 87. [2-(4-Chloro-butyryl)-phenyl]-carbamic acid tert-butyl ester (91) (53MF3 To a mixture of (2-trimethylstannanyl-phenyl)-carbamic acid tert-butyl ester CI (17.0 g, 36 mmol) in dry toluene (300 ml) was added 4-chloro-butyryl chloride (5.3 g, 38 mmol) and dichlorobis(acetonitrile)palladium (II) (300 mg, 1.2 mmol). The reaction mixture was heated to reflux and left for 12 followed by evaporation to dryness and column chromatography (heptane ethyl acetate; 10 1) to produce the title compound 91. Yield 7.2 g (47% from the phenyl-carbamic acid tert-butyl ester).
Example 88. {2-[4-(4-Butyl-piperidine-1-yl)-butyryl]-phenyl}-carbamic acid tertbutyl ester (92) (53MF38). A flash was charged with [2-(4-chloro-butyryl)-phenyl]carbamic acid tert-butyl ester (2.1 g, 7.1 mmol) and 4-butyl-piperidine (1.2 g, 8.5 mmol) before addition of pyridine (5 ml). To the reaction mixture was added potassium carbonate (1.17 g, 8.5 mmol) and the mixture was stirred at 100 0 C for 12 h. Water (50 ml) was added followed by extraction with ethyl acetate (3 x 150 ml). The combined organic phases were dried over MgSO4, filtered and evaporated to dryness. The crude material was subjected to column chromatography (DCM methanol; 20 1) which produced the pure title compound (92) (1.48 g, 52%).
Example 89. 3-[3-(4-Butyl-piperidine-l-yl)-propyl]-1H-indazole, HCI (93) (53MF39). A solution of {2-[4-(4-butyl-piperidine-1-yl)-butyryl]-phenyl}-carbamic acid tert-butyl ester (1.48 g, 3.7 mmol) in a solution of HCI in dioxane (4 N) (20 ml) was stirred at rt for 1 h before evaporation to dryness. The residue was dissolved in HCI (cone.) (15 ml) prior to addition of a solution of sodium nitrite (255 mg, 3.7 mmol) dissolved in water (3 ml).
The mixture was stirred at 0°C for 1 h before addition of stannyl chloride (1.7 g, 7.4 mmol) and then further stirred at rt for 3 h. The pH of the reaction mixture was adjusted with NaOH (2 N) until basic, followed by extraction with ethyl acetate (3 x 400 ml). The combined organic phases were dried over MgSO4, filtered and evaporated in vacuo. The crude material 59 WO 01/83472 PCT/US01/13561 was subjected to column chromatography (DCM methanol; 20: which produced the crude title compound 93. The crude compound was dissolved in diethyl ether followed by C addition of HCI in ether (1.0 M) and stirred for 0.5 h. The solution was evaporated to dryness and the solid material was recrystallised twice from DCM diethyl ether to produce the pure title compound. Yield 0.44 g (UV/MS(%)=100/00); mp: 160.5-164.0 0 C; 'H NMR cN (CD 3 0D): 8 7.96 1H), 7.62 2H), 7.33 1H), 3.58 (dt, 2H), 3.24-3.19 4H), 2.95 (t, 2H), 2.33 (qv, 2H), 1.97 21H), 1.65-1.28 9H), 0.91 3H). 3 C NMR(CD 3 0D) 143.9, 141.0, 130.3, 122.5, 120.8, 120.5, 110.9, 56.4, 53.2, 35.4, 33.6, 29.7, 28.5, 23.1, 22.7, 22.6, 00 O 13.1.
CN 10 Example 90. 3-[3-(4-Butyl-piperidine-1-yl)-propyl]-5-nitro-JH-indazole (94) (39MF43N2); and Example 91 3-[3-(4-Butyl-piperidine-1-yl)-propyl]-5,7-dinitro-1H- CI indazole (95) (39MF43DINO2). A solution of 3-[3-(4-butyl-piperidine- I -yl)-propyl]- 1Hindazole (120 mg, 0.4 mmol) in a 1 1 mixture of nitric acid (fuming) and sulfuric acid (conc.) (2 ml) was stirred at 0 0 C for 1.5 h. The pH of the mixture was adjusted with NaOH (8 N) whereupon a yellow oily material precipitated. The material was filtered and subjected to preparative TLC (DCM methanol; 10 1) which produced the two pure title compounds.
Yield: 25 mg (3-[3-(4-Butyl-piperidine-1-yl)-propyl]-5-nitro-1H-indazole) 'H NMR (CDC1 3 8 8.45 1H), 8.01 2H), 7.48 1H), 3.48 2H), 3.18-2.95 4H), 2.62 2H), 2.27 (qv, 2H), 1.82 2H), 1.58 (qv, 2H), 1.44-1.38 1H), 1.30-1.19 6H), 0.91 3H). 3 C NMR (CDC 3 147.4, 143.4,141.9,121.6,121.1,117.7, 111.3, 57.4, 53.6, 35.4, 34.4, 30.0, 28.9, 24.2, 23.5, 22.9, 14.2. Yield: 10 mg (3-[3-(4-Butyl-piperidine- 1-yl)-propyl]-5,7-dinitro-1H-indazole) 1H NMR (CDCl 3 8 9.18 1H), 9.05 1H), 3.18-3.10 4H), 2.68 2H), 2.25-2.14 4H), 1.74 2H), 1.45-1.22 7H), 0.91 (t, 3H).
Example 92. 4-(4-Butyl-piperidin-1-yl)-1-(2-metylsulfanyl-phenyl)-butan-1-one (96) (65MF07). To a stirred solution of 2-bromothioanisole (12.85 g, 63.3 minol) in dry THF (60 ml) at -78 0 C was added n-BuLi (1.6 N in hexane) (41 ml, 65.3 mmol) via a syringe over 30 min. The reaction mixture was further stirred at -78 0 C for 30 min. prior to the addition of a solution of 4-(4-butyl-cyclohexyl)-N-methoxy-N-methyl-butyramide (11.41 g, 42.2 mmol) dissolved in dry THF (10 ml). The mixture was held at -78 0 C for 0.5 h and at rt for 0.5 h before addition of water (100 ml) and by extraction with ethyl acetate (3 x 150 ml).
The combined organic phases were dried over MgSO4, filtered and evaporated in vacuo to WO 01/83472 PCT/US01/13561 produce the crude title compound 96 (11.9 Purity according LC-MS analysis: S(UV/MS(%)=90/91).
Example 93. 3-[3-(4-Butyl-piperidin-l-yl)-propyl]-benzo[d]isothiazole (97) 2 (65MF08). A mixture of crude 4-(4-butyl-piperidin-1-yl)-l-(2-metylsulfanyl-phenyl)-butan- 1-one (11.9 g, 36 mmol) and hydroxylamine-O-sulfonic acid (6.11 g, 54 mmol) in acetic acid CN (500 ml) was stirred at rt for 72 h followed by heating at 100 0 C for 24 h. The reaction mixture was cooled to rt and the pH adjusted with 2 N NaOH to a basic condition (pH before extraction with ethyl acetate (3 x 400 ml). The combined organic phases were dried over 00 OO MgSO4, filtered and evaporated in vacuo to produce 12.1 g of the crude product. The crude
O
C 10 product was purified by column chromatography (DCM MeOH; 20 1) to yield the title 0compound 97. Yield 3.67 g from 2-bromothioanisole. The oxalate salt was formed C1 by addition of oxalic acid and recrystallised from methanol-diethyl ether to give white crystals, which were filtered and dried. mp 193.4-194.0°C. 'H NMR (CDC13): 6 7.98 1H), 7.91 1H), 7.50 1H), 7.41 1H), 3.14 2H), 2.92 2H), 2.46 2H), 2.18 (qv, 2H), 1.92 2H), 1.66 2H), 1.35-1.18 9H), 0.88 3H). 3
C
NMR (CDC1 3 166.6, 152.5, 134.9, 127.6, 124.5, 123.6, 120.0, 58.5, 54.2, 36.4, 35.9, 32.5, 29.7, 25.5, 23.1, 14.2.
Example 94. 3-[3-(4-Butyl-piperidin-1-yl)-propylJ-5-methoxy-lH-indazole (98) (53MF35). A small flask was charged with 1-(2-amino-5-methoxy-phenyl)-4-(4-butylpiperidin-l-yl)-butan-1-one (1.58 g, 47 mmol) in cone. HCI (15 ml). The mixture was cooled to 0 C followed by addition of sodium nitrite (0.61 g, 88 mmol) and water (3 ml) and stirring at 0°C for 2 h. Addition oftin(II) chloride dihydrate (2.68 g, 11.9 mmol) produced a precipitated that was filtered, washed twice with ice-cold water and dried. The filtrate was dissolved in ethyl acetate (100 ml) and IN NaOH (150 ml), followed by extraction with ethyl acetate (3 x 150 ml). The combined organic phases were dried over MgSO4, filtered and evaporated in vacuo to produce 1.30 g of the crude product. The crude product was purified by column chromatography (DCM MeOH; 20 1) to yield the title compound 98. The oxalate salt was formed by addition of oxalic acid and recrystallised from methanol-diethyl ether to give white crystals that were filtered and dried. Yield 0.97 g 'H NMR (CDC13): 5 7.32 (dd, 1H), 7.03 (dd, 1H), 6.98 1H), 3.85 3H), 3.10 2H), 2.96 2H), 2.61 2H), 2.15-2.05 4H), 1.68 2H), 1.40-1.20 9H), 0.87 3H). 13C NMR (CDCl 3 177.2, 154.5, 145.6, 137.4, 122.4,119.0, 111.2, 99.6, 58.0, 55.9, 53.5, 36.1, 35.5, 31.5, 29.1, 25.2, 24.9, 23.4, 23.0, 14.2.
WO 01/83472 PCT/US01/13561 Example 95. 3-[3-(4-Butyl-piperidin-1-yl)-propyl]-4-methoxy-1H-indazole (99) a (53MF470). To a solution of 3-(3-chloro-propyl)-4-methoxy-lH-indazole (0.99 g, 4.41 CI mmol) in acetonitrile (25 ml) was added 4-butylpiperidine (0.61 g, 4.41 mmol) at rt. The Sreaction mixture was stirred at rt. for 3 days before addition of water (50 ml). The aqueous 5 phase was extracted with ethyl acetate (3 x 50 ml) and the combined organic phases were CN dried over MgSO4, filtered and evaporated in vacuo to produce 1.40 g of the crude product.
The crude product was purified by column chromatography (ethyl acetate MeOH Et 3 N; S 5 3) to yield the title compound 99. Yield 0.65 g 'H NMR (CDCI 3 8 7.24 1H), 00 7.00 1H), 6.41 1H), 3.91 3H), 3.58 2H), 3.20-2.99 4H), 2.55 2H), 2.22 N 10 (qv, 2H), 1.81 2H), 1.61 2H), 1.41-1.08 7H), 0.87 3H). 3 C NMR (CDC13): 154.9, 144.3, 143.3, 129.2, 113.1, 103.1, 99.8, 57.1, 55.4, 53.3, 35.3, 34.3, 29.5, 28.8, 25.6, CN 23.1, 22.8,14.1.
Example 96. 3-[3-(4-Butyl-piperidin-1-yl)-propyl]-6-methoxy-1H-indazole (100) (53MF47P). To a solution of 3-(3-chloro-propyl)-6-methoxy-1H-indazole (0.99 g, 4.41 mmol) in acetonitrile (25 ml) was added 4-butylpiperidine (0.61 g, 4.41 mmol) at rt. The reaction mixture was stirred at rt. for 3 days before addition of water (50 ml). The aqueous phase was extracted with ethyl acetate (3 x 50 ml) and the combined organic phases were dried over MgSO4, filtered and evaporated in vacuo to produce 0.85 g of the crude product.
The crude product was purified by column chromatography (ethyl acetate MeOH Et 3 N 5 3) to yield the title compound 100. Yield 0.55 g 'H NMR (CDC13): 6 7.42 (d, 1H), 6.80-6.72 2H), 3.80 3H), 3.60 2H), 3.11-2.92 4H), 2.55 2H), 2.23 (qv, 2H), 1.79 2H), 1.58 2H), 1.40-1.08 7H), 0.83 3H). 3 C NMR (CDC13): 160.8, 143.8, 142.6, 120.7, 116.2, 114.0, 91.2, 57.1, 55.6, 53.4, 35.3, 34.3, 29.5, 28.8, 23.7, 22.8, 22.7, 14.1.
Example 97. 3-[3-(4-Butyl-piperidin-1-yl)-propyl]-lH-indazole-4-ol (101) (53MF51). 3-[3-(4-Butyl-piperidin-1-yl)-propyl]-4-methoxy-1H-indazole (28 mg, 0.09 mmol) was dissolved in dry DCM (1.0 ml) and cooled to 0°C before addition of 1M bromotribromide solution in DCM (0.50 ml, 0.50 mmol). The mixture was left at rt for 12 h, followed by addition of water (5 ml) and 2N NaOH (10 ml). The aqueous phase was extracted with DCM (3 x 25 ml) and the combined organic phases were dried over MgSO4, filtered and evaporated in vacuo to produce 13 mg of the crude product. Purification by preparative HPLC followed by treatment with HCI in dioxane (4M, 2 ml) yielded the title compound (101) as white crystals after washing with DCM. Yield: 6.0 mg, 17% 'H NMR WO 01/83472 PCT/US01/13561 (CDC1 3 6 7.18 1H), 6.81 1H), 6.50 1H), 2.85 2H), 2.23 2H), 1.98 (qv, 2H), 1.83 2H), 1.62 2H), 1.41 2H), 1.21-1.01 9H), 0.78 3H).
(N Example 98. 3-3-(4-Butyl-piperidin-1-yl)-propyl]-lH-indazole-6-ol (102) (53MF52). 3-[3-(4-Butyl-piperidin-1-yl)-propyl]-6-methoxy-1H-indazole (28 mg, 0.09 mmol) was dissolved in dry DCM (1.0 ml) and cooled to 0°C before addition of 1M cI bromotribromide solution in DCM (0.50 ml, 0.50 mmol). The mixture was held at rt for 12 h, followed by addition of water (5 ml) and 2N NaOH (10 ml). The aqueous phase was c extracted with DCM (3 x 25 ml) and the combined organic phases were dried over MgSO4, 00 filtered and evaporated in vacuo to produce 17 mg of the crude product. Purification by CN 10 preparative HPLC followed by treatment with HCI in dioxane (4M, 2 ml) yielded the title 0 compound (102) as white crystals after washing with DCM. Yield: 10 mg, 17%. 'H NMR CN (CD30D): 6 7.54 1H), 6.77 1H), 6.71 1H), 3.55 2H), 3.15 2H), 3.04 2H), 2.90 (dt, 2H), 2.22 (qv, 2H), 1.97 2H), 1.58-1.28 9H), 0.92 3H). 13C NMR 159.0, 145.5, 144.4, 121.7, 117.2, 113.7, 94.4, 58.2, 54.3, 36.5, 34.8, 31.0, 29.7, 24.7, 24.3, 23.7, 14.3.
Example 99. 3-[3-(4-Butyl-piperidin-l-yl)-propyl]-lH-indazole-5-ol (103) (53MF50). 3-[3-(4-Butyl-piperidin-1-yl)-propyl]-5-methoxy-1H-indazole (28 mg, 0.09 mmol) was dissolved in dry DCM (1.0 ml) and cooled to 0°C before addition of 1M bromotribromide solution in DCM (0.50 ml, 0.50 mmol). The mixture was held at rt for 12 h, followed by addition of water (5 ml) and 2N NaOH (10 ml). The aqueous phase was extracted with DCM (3 x 25 ml) and the combined organic phases were dried over MgSO4, filtered and evaporated in vacuo to produce 14 mg of the crude product. Purification by preparative HPLC followed by treatment with HC1 in dioxane (4M, 2 ml) yielded the title compound (103) as white crystals after washing with DCM. Yield: 16 mg, 60%. 'H NMR (CD30D): 5 7.54 1H), 6.77 1H), 6.71 1H), 3.55 2H), 3.15 2H), 3.04 2H), 2.90 (dt, 2H), 2.22 (qv, 2H), 1.97 2H), 1.58-1.28 9H), 0.92 3H). 3 C NMR
(CD
3 0D): 159.0, 145.5, 144.4, 121.7, 117.2, 113.7, 94.4, 58.2, 54.3, 36.5, 34.8, 31.0, 29.7, 24.7,24.3,23.7, 14.3.
Example 100. Screening Of Test Compounds In An Assay Using Muscarinic Receptor Subtypes ml, m2, m3, m4 and m5. The ml, m2, m3, m4 and m5 muscarinic receptor subtypes were cloned substantially as described by Bonner et al., Science 273:527(1987) and Bonner et al., Neuron 1:403 (1988). R-SAT assays were carried out substantially as described in U.S. Patent Nos. 5,707,798, 5,912,132, and 5,955,281, and by WO 01/83472 PCT/US01/13561 Brailner-Osborne Brann, Eur. J. Pharmacol. 295:93 (1995). NIH-3T3 cells (available from the American Type Culture Collection as ATCC CRL 1658) were transfected with plasmid DNA encoding the ml, m2, m3, m4 or m5 receptors and plasmid DNA encoding Pgalactosidase. Transfected cells were grown in the presence of between 1 nM and 40 pM of the test compound for 5 days. On day 5, the cells were lysed using 0.5% Nonidet-P and pgalactosidase expression was quantified using the chromogenic substrate o-nitrophenyl-p-Dgalactoside (ONGP).
00 Data were normalized relative to the maximum response of the cells to the muscarinic agonist carbachol, and the following equation was fitted to the data: 10 response minimum (maximum minimum)/(1 0 Where [ligand] ligand concentration.
Efficacy was defined as: (maximum minimum)/(maximum response of cells to carbachol).
-log Where data gave a bell-shaped curve, "maximum" was defined as the highest observed response.
The results, which demonstrate the selective agonist activity of several compounds of the invention, are below presented in Table 1.
Table 1. Selectivity of Muscarinic Agonists ml m2 m3 m4 Example %Eff pEC50 %Eff I pEC50 %Eff pEC50 %Eff pEC50 %Eff 12 59 5.9 no response no response no response 19 86 7.3 no response no response 70 6.5 no response 24 75 6.9 no response no response 41 6.3 no response 28 38 6.5 1 no response no response no response 32 52 6.4 no response no response no response no response 41 81 6.9 no response no response 69 6.2 31 42 51 7.1 43 66 6.3 30 6.0 no response 44 72 6.1 61 59 6.3 no response no response 39 6.0 no response 45 6.0 no response 34 73 37 6.2 no response 77 71 7.0 96 6.3 81 72 6.4 77 89 85 7.3 no response no response 53 6.8 no response 93 83 7.1 no response no response 58 6.4 no response WO 01/83472 Eff: No response: PCTIUS0I/13561 Efficacy log Efficacy 25% maximum response of carbachol. This level of activity is not considered significantly different to no response.
WO 01/83472 PCT/US01/13561 Example 101. Effects of Compound 35AKU-21 on Intaocular Pressure in Primates. All studies were conducted in fully conscious female cynomolgus monkeys (Macacca fascicularis) weighing 3 4 kg. Unilateral ocular hypertension was produced by argon laser photocoagulation to the mid-trabecular meshwork (Sawyer McGuigan, Invest.
Ophthalmol. Vis. Sci. 29:81(1988)).
Animals were trained to allow measuring intraocular pressure (IOP) with a model n Classic pneumatonometer (Mentor O&O Throughout each study, monkeys sat in specially designed chairs (Primate Products, San Francisco) and fed fruits and juices as needed.
The drug was administered topically. The drug was formulated in an aqueous solution such as distilled water, saline or citrate buffer at a pH 5-7 and applied unilaterally as a 35p L drop; the contralateral eye received an equal volume of saline (or vehicle). Two baseline measurements were made prior to administration of the drug, followed by periodic measurements up to 6 hours post drug administration. The results of this study are shown below in Table 2.
Table 2. Ocular Hypotensive Effect of 35AKU-21 in Glaucomatous Monkeys TIME (HR) 1 2 4 6 IOP Change -9.3 -21.3 -25.9 -29.2 SEM 2.2 5.0 6.5 6.2 N 6 6 6 6 p value .008 .009 .016 .012 p value is for comparison to vehicle control in contralateral eye.
Claims (15)
- 2. The compound of claim 1, wherein each t is 2 and RIO is straight- or branched-chain C 2 8 ailkyl, C 2 -8 alkenyl, C 2 -8 alkynyl, C 1 8 alcylidene, C 1 5 alkoxy, or C 1 8 heteroalcyl.
- 3. The compound of claim 2, wherein RIO is n-butyl.
- 4. The compound of claim 1, wherein ZI is CR 1 or N, Z 2 is CR 2 Z 3 is CR 3 or N, and Z 4 is CR 4 The compound of claim 4, wherein each RI, R 2 R 3 and R 4 independently, is H, halo, NO 2 or straight- or branched-chain C 1 -6 alkyl, or R, and R 2 together form -NH-N=N- or R 3 and R 4 together form -NH-N=N-.
- 6. The compound of claim 2, wherein Y is absent or 0, p is 0, 1, 2 or 3, and R8 and R9 are H.
- 7. The compound of claim 6, wherein Z is absent, Y is absent and p is 3.
- 8. The compound of claim 7, wherein RIO is n-butyl.
- 9. The compound of claim 2, wherein the compound is of the formula WO 01/83472 PCTIUS01/13561 R2 R 1 G2W R QO\NH 0 R4 G R4 GR or wherein W, is 0, S, or NR 5 W 2 is CR 5 or N, and W 3 is CR 5 or N. The compound of claim 9, wherein Z is absent, Y is absent and p is 3. 00 11. The compound of claim 10, wherein Rio is n-butyl.
- 12. The compound of claim 9, wherein R 5 is H or CI-6 ailkyl.
- 13. The compound of claim 2, wherein the compound is of the formula or N N3 R3 R 3 wherein W 3 is NR 5 S or 0.
- 14. The compound of claim 13, wherein Z is absent, Y is absent and p is 3.
- 15. The compound of claim 14, wherein Rio is n-butyl.
- 16. The compound of claim 13, wherein R 5 is H or CI-6 ailkyl.
- 17. The compound of claim 1, wherein the compound is: 2-(3-(4-n-butylpiperidine-1 -yl)-propyl)-benzothiazole; 2-(3-(4-n-butylpiperidine-1 -yl)-propyl)-benzooxazole; 4,5-difluoro-2-(3-(4-n-butylpiperidine-1 -yl)-propyl)-1H-benzoimidazole; 6-fluoro-5-nitro-2-(3 -(4-n-butylpiperidine- 1-yl)-propyl)- 1H-benzoiniidazole; 5-tert-butyl-2-(3-(4-n-butylpiperidine- 1-yl)-propyl)- 1H-benzoimidazole; 5-chloro-&-methyl-2-(3-(4-n-butylpiperidine- 1-yl)-propyl)- 1H-benzoimuidazole; 4,6-difluoro-2-(3-(4-n-butylpiperidine-1 -yl)-propyl)-1H-benzoimidazole; 2-(3-(4-n-butylpiperidine)-l1-yl-propyl)- 1H-iniidazo[4, S-c]pyridine; 8-(3 -(4-n-butylpiperidine)-l1-yl-propyl)-9H-purine; 7-(3-(4-n-butylpiperidine)-1 -yl-propyl)-3,8-dihydro-imnidazo[4, S '3,4]benzo [1,2- d] 3]triazole; 2-(3-(4-n-butylpiperidine)-1 -yl-propyl)-3a,4,5,6,7,7a-hexahylro- 1H-benzoimidazole; WO 01/83472 PCT/USO1/13561 1-(3-(4-n-butylpiperidine)- 1 -yl-propyl)- IH-indole; 1 -(3-(4-n-butylpiperidine)-1 -yl-propyl)- 1H-benzoiinidazole; 3-methyl-i -(3-(4-n-butylpiperidine)-l1-yl-propyl)- 1H-indole; 5-rm-1-3(--btlieiie- ylpoy)lNnoe 3~-bromol- 1 -(3-(4-n-butylpiperidine)-1I -yl-propyl)- 1H-indole; N 3-fomyl-1 -(3-(4-n-butylpiperidine)- 1 -yl-propyl)- 1H-indole; c-i -broo-1-(3-(4-n-butylpiperidine)- 1 -yl-propyl)-1H-indole; 1 -(3-(4-n-butylpiperidine)- 1 -yl-propyl)-1H-n dixzol; 00 3-(3-(4-n-butylpiperidine)-l1-yl-propyl)-be-nod~oxazle 0 3-i--(3-(4-n-butylpiperidine)-l-yl-propy -inoenziiaoe
- 45-nitro-2-(3-(4-n-butylpiperidine)-l1-yl-propyl)- 1H-benzoimidazole; N 5-nitro-2-(3-(4-n-butylpiperidine)- -yl-propyl)- H-benzoimidazole; (N 4-hdoxy2-(3 -(4-n-butylpiperidine)- 1 -yl-propyl)- 1H-benzoimidazole; 2-meh{-3-(4-n-butylpiperidine)-l-yl-propyl)- H-benzoimidazole;
- 154-mehy2-(4-n-butylpiperidine)-1-yl- propyl)- 1Hbenoimdaole; 3-(2-(4-n-butylpiperidine)-1 -yl-ethyl)-H-indole; 3-(2-(4-n-butylpiperidine)-ethoxy)-7-methyl-benzo [d]isoxazole; 1 -(4-Methylpiperidine)-l1-yl-propyl)-1 H-indazole; 1 -(3-(4-Pentylpiperidine)- 1-yl-propyl)-l H-indazole; 1 -(3-(4-Propylpiperidine)-1 -yl-propyl)-1 H-; 1 -Methyl-butyl)-pipericline)- 1-yl-propyl)- 1H-indazole 1 -(3-(4-Pentylidene-piperidine)-1 -yl-propyl)-1H-indazole; 1 -(4-Propylidene-piperidine)-l1-yl-propyl)-1H-indazole 1 -Benzo[b]thiophen-2-yl-4-(4-butylpiperidin-1 -yl)-butan-1 -one 4-.(4-Butylpiperidin- 1l-yl)-l -methyl-b enzofuran-2-yl)-butan- 1 -one; 4-(4-Butylpiperidin- Il-yl)-l -(5-fluoro-3-methyl-benzo[b]thiophen-2-yl)-butan-1 -one; 1 -Benzofuran-2-yl-4-(4-butylpiperidin- 1-yl)-butan-1 -one; 1 -(3-Bromo-benzo[b~tbophen-2-yl)-4-(4-butylpiperidin- 1 -yl)-butan- 1-one 1 enzo[b]thiophen-2-yl-propyl)-4-butylpiperidine; 1 -(3-Benzofuran-2-yl-propyl)-4-butylpiperidine; 4-Butyl- 1 -(3-methyl-benzofuran-2-yl)-propyl]-piperidine; 4-Butyl- 1 [3 -fluoro-3 -methyl-benzo [b]thiophen-2-yl)-propyl] -pip eridine; 2-(3-Iodo-propyl)-benzo[b]thiophene; 1 -(3-Benzollb]thiophen-2-yl-propyl)-4-methylpiperidine WO 01/83472 PCTIUSOI/13561 1 -(3-Benzo[b]thiophen-2-yl-propyl)-4-b enzylpiperidine; 1 -(3-Benzo[b]thiophen-2-yl-propyl)-4-(2-methoxy-phenyl)-piperidine; 2-(3-Bromopropyl)-2H-benzotriazole; 2-[3-(4-Butylpiperidin- 1-yl)-propyl]-2H-benzotriazole; 1-(3-Bromopropyl)-1 H-benzotriazole; Nl 1 -[3-(4-Butylpiperidin-1 -yl)-propyl]-lH-benzotriazole; 1 -(4-Butylpiperidin-1 -yl)-propyl]-1H-indole-3-carbaldehyde; M {1 -[3-(4-Butylpiperidin-1 -yl)-propyl]-1H-indol-3-yl} -methanol; 00 1- [3-(4-Butylpiperidin- 1-yl)-propyl]-2-phenyl- 1H-benzoimidazole; N- 10 1 -(4-Butylpiperidin-1-yl)-propyl]-3-chloro-1H-indazole; 1 -[3-(4-Butylpiperidin- 1-yl)-propyl]-6-nitro-1H-indazole; C-I Benzo[d]isoxazol-3-ol; 3-(2-Chloroethoxy)-benzo[d]isoxazole; 3-[2-(4-Butylpiperidin- 1-yl)-ethoxy]-benzo[d]isoxazol; 3-(1H-Indol-3-yl)-propan-1 -ol; 3-[3-(4-Butyl-piperidin-1 -yl)-propyl]- 1H-indole hydrochloride; 4-(4-Butylpiperidine- 1-yl)-butyric acid methyl. ester; 2-[3-(4-Butylpiperidin-1 -yl)-propyl]-1 -methyl- 1H-benzimidazole; 1 H-Indazole-3-carboxylic acid (2-(4-butylpiperidin)-l1-yl-ethiyl)-amide; 1 -(4-Butylpiperidin-1 -yl)-propyl]-5-nitro-1H-indazole; 2-[3 -(4-butylpiperidin-1 -yl)-propyl]-5-nitro-2H-indazole; 1 -(4-Butyl-piperidin-1 -yl)-propyl]-2-methyl- 1H-indole; 1- {l1-[3-(4-Butyl-piperidin- 1-yl)-propyl]- 1H-indol-3-yl})-ethanone; 1-[3-(4-Butyl-piperidin-1 -yl)-propyl]-1 H-indol-3-yl} -acetonitrile; 1 -(4-Butyl-piperidin-1 -yl)-propyl]-1H-indole -3-carbonitrile; 1 -[3-(4-Butyl-piperidin-1 -yl)-propyl]-5,6-dimethyl- 1H-benzoimidazole; 1 -[3-(4-Butyl-piperidin- 1-yl)-propyl]-5(6)-dimethyl-1 H-benzoirnidazole; 1 -[3-(4-Butyl-piperidin-1 -yl)-propyl]-5-methoxy-1H-benzoiniidazole; 1-[3-(4-Butyl-pipericlin-1-yl)-propyl]-IH-benzoirnidazol-2-yl }-methanol; 1 -(4-Butyl-piperidin-1 -yl)-propyl]-2-trifaoromethyl-1H-benzoimidazole; (2-Triinethylstannanyl-phenyl)-carbamic acid tert-butyl ester; [2-(4-Chloro-butyryl)-phenyl]-carbamic acid tert-butyl ester; {2-[4-(4-Butyl-piperidine-1 -yl)-butyryl]-phenyl} -carbamic acid tert-butyl ester; 3-[3-(4-Butyl-piperidine-l -yl)-propyl]-l H-indazole, HCl; 71 WO 01/83472 PCT/US01/13561 3-[3-(4-Butyl-piperidine-1-yl)-propyl]-5 -nitro- 1H-indazole; 3-[3-(4-Butyl-piperidine-1-yl)-propyl]-5,7-dinitro-1H-indazole; 4-(4-Butyl-piperidin-1 1 -(2-metylsulfanyl-phenyl)-butan- 1 -one; 3-[3 -(4-Butyl-piperidin-1 -yl)-propyl]-benzo[d]isothiazole; 3-[3-(4-Butyl-piperidin-1 -yl)-propyl]-5-methoxy- 1H-indazole; 3-[3-(4-Butyl-piperidin-1 -yl)-propyl]-4-methoxy-1H-indazole 3-[3-(4-Butyl-piperidin- 1-yl)-propyl] -6-methoxy- 1H-indazole; 3-1j3-(4-Butyl-piperidin- 1-yl)-propyl]-1H-indazole-4-ol (5 3MF51); 3- [3-(4-Butyl-piperidin-1-yl)-propyl]- 1H-indazole-6-ol (5 3MF5 or 3-[3-(4-Butyl-piperidin-1 18. A pharmaceutical composition comprising an effective amount of a compound of formula G1) z 2 wherein: Z, is CR 1 or N, Z 2 iSCR 2 or N,Z 3 is CR 3 or N, andZ 4 iSCR 4 orN, where no more than two Of Z 1 Z 2 Z 3 and Z 4 are N; W, is 0, S, or NR 5 one of W 2 and W 3 is N or CR 6 and the other of W 2 and W 3 is CG; Wi is NG, W 2 is CR 5 or N, and W 3 is CR 6 or N; or W, and W 3 are N, and W 2 is NG; G is of formula (HI): (II) Y is 0, S, CHOH, -NR 7 -CH=N-, or absent; pis 1,2, 3,4or5; Z is CR8R 9 or absent; each tis 1, 2, or 3; WO 01/83472 PCTJUSOI/13561 each RI, R 2 R 3 and R 4 independently, is H, amino, hydroxyl, halo, or straight- or branched-chain CI-6 alkyl, C 2 -6 alkenyl, C 2 6 alkynyl, C 1 6 heteroalkyl, CI-6 haoalkyl, -CN, CF 3 -OR 11 -C0RII, -NO 2 -SRI,, -NHC(O)R 11 -C(O)NR1 2 RI 3 -NR 12 R 13 NRIIC(O)NR1 2 RI 3 -S0 2 NR 12 RI 3 ,-0C(O)RII, -O(CH 2 )qNR12RI 3 or -(CH 2 )qNR1 2 RI 3 where q is an integer from 2 to 6, or R, and R 2 together form -NH-N=N- or R 3 and R 4 together form NH-N=N-; each R 5 R 6 and R 7 independently, is H, C1.6 alkyl; formyl; C 3 6 cycloalkyl; C5_6 aryl, optionally substituted with halo or CI-6 ailkyl; or C5_6 heteroaryl, optionally substituted with 00 halo or C 1 6 alkyl; each R 8 and R 9 independently, is H or straight- or branched-chain C 1 8 ailkyl; RIO is straight- or branched-chain C 1 8 alkyl, C 2 _8 alcenyl, C 2 8 alkynyl, C 1 8 alcylidene, c-I C 1 8 alcoxy, C 1 .8s heteroalicyl, C 1 8 aminoalkyl, C 1 8 haloallcyl, C 1 8 alkoxycarbonyl, C 1 8 hydroxyalkoxy, C 1 8 hydroxyalkyl, -SH, C 1 s alkylthio, -O-CH 2 -C 5 6 aryl, -C(O)-C 5 6 aryl substituted with C 1 3 alkyl or halo, C5- 6 aryl, C5-. 6 cycloalkyl, C5_ heteroaryl, C5- 6 heterocycloalcyl, -NR 12 RI 3 -C(O)NR 1 2 R 13 -NR 1 IC(O)NR 1 2 RI 3 -CR 1 1 R 1 2 RI 3 -OC(O)RII, (O)(CH 2 )siNR1 2 RI 3 or -(CH 2 )SNR 12 R 1 3 s being an integer from 2 to 8; R, 0 is H, straight- or branched-chain C 1 8 alkyl, C 2 8 alkenyl, C 2 -8s alkynyl, C 1 8 alcylidene, C 1 8 alkoxy, C 14 8 heteroallcyl, C 14 8 aniinoallcyl, C 1 8 haloalkyl, alkoxycarbonyl, C 14 8 hydroxyalkoxy, C 1 8 hydroxyallcyl, or C 1 8 allcyltbio; each R, 11 independently, is H, straight- or branched-chain C 1 8 alkyl, C 2 8 alkenyl, C 2 8 alkynyl, C 2 -8s heteroalkyl, C 2 8 aminoalkyl, C 2 8 haloalkyl, CI. 8 alkoxycarbonyl, C 2 8 hydroxyalkyl, 6 aryl substituted with C 1 3 alkyl or halo, C5_6 aryl, C5_ heteroaryl, C 5 6 cycloalkyl, C 5 6 heterocycloalcyl, -C(O)NR 12 RI 3 -CR 5 R 12 RI 3 -(CH 2 )tNR 12 R 1 3 t is an integer from 2 to 8; and each R 12 and R 1 3 independently, is H, CI-6 alkyl; C 3 6 cycloalkyl; C 5 6 aryl, optionally substituted with halo or CI-6 alkyl; or C5_6 heteroaryl, optionally substituted with halo or Cl.6 ailkyl; or R 12 and R 13 together form a cyclic structure; or a pharmaceutically acceptable salt ester or prodrug thereof. 19. The pharmaceutical composition of claim 18, wherein each t is 2 and RIO is straight- or branched-chain C 24 8 alkyl, C 2 8 alkenyl, C 2 8 alkynyl, C 1 8 alkylidene, C 1 8 alkoxy, or CI-8 heteroalicyl. The pharmaceutical composition of claim 19, wherein RIO is n-butyl. 2 1. The pharmaceutical composition of claim 19, wherein Z 1 is CR 1 or N, Z 2 is CR 2 Z 3 is CR 3 or N, and Z 4 is CR 4 WO 01/83472 PCT/US01/13561 22. The pharmaceutical composition of claim 21, wherein each RI, R 2 R 3 and R 4 independently, is H, halo, -NO 2 or straight- or branched-chain Ci-6 alkyl, or R 1 and R 2 together form -NH-N=N- or R 3 and R 4 together form -NH-N=N-. 23. The pharmaceutical composition of claim 19, wherein Y is absent or 0, p is 0, 1, 2 or 3, and R8 and R9 are H. r,1 24. The pharmaceutical composition of claim 23, wherein Z is absent, Y is absent and p is 3. The pharmaceutical composition of claim 24, wherein Rio is n-butyl. 26. The pharmaceutical composition of claim 19, wherein the compound is of the formula 00 Q0NH 02 R3 R 3 R 3 R4 G G or wherein Wi is O, S, or NR 5 W 2 is CR 5 or N, and W 3 is CR 5 or N. 27. The pharmaceutical composition of claim 26, wherein Z is absent, Y is absent and p is 3. 28. The pharmaceutical composition of claim 27, wherein Rio is n-butyl. 29. The pharmaceutical composition of claim 26, wherein R 5 is H or C 14 alkyl. The pharmaceutical composition of claim 19, wherein the compound is of the formula or R 2 N R2 N R4 R4 wherein W 3 is NR 5 S or 0. 31. The pharmaceutical composition of claim 30, wherein Z is absent, Y is absent and p is 3. 32. The pharmaceutical composition of claim 31, wherein Ro 0 is n-butyl. 33. The pharmaceutical composition of claim 30, wherein R 5 is H or CI-6 alkyl. 34. The pharmaceutical composition of claim 19, wherein the compound is: 2-(3-(4-n-butylpiperidine-1-yl)-propyl)-benzothiazole; 2-(3-(4-n-butylpiperidine-1-yl)-propyl)-benzooxazole; 4,5-difluoro-2-(3-(4-n-butylpiperidine-1-yl)-propyl)- 1H-benzoimidazole; 74 WO 01/83472 PCTIUS01/13561 6-fluoro-5-nitro-2-(3-(4-n-butylpiperidine-1 -yl)-propyl)-1H-benzoimidazole; 5-tert-butyl-2-(3-(4-n-butylpiperidine- 1-yl)-propyl)-1H-benzoimidazole; N- 5-chloro-6-methyl-2-(3-(4-n-butylpiperidinie-1 -yl)-propyl)-IH-benzoimidazole; 4,6-difluoro-2-(3 -(4-n-butylpiperidine-1 -yl)-propyl)-1H-benzoimidazole; 2-(3-(4-n-butylpiperidine)-1 -yl-propyl)- 1H-imidazo[14, CI 8-(3-(4-n-butylpiperidine)-l1-yl-propyl)-9H-purine; 7-(3-(4-n-butylpiperidine)- 1 -yl-propyl)-3,8-dihydro-imidazo S 4]benzo[1, 2- d][1,2,3]triazole; 00 2-(3-(4-n-butylpiperidine)-l1-yl-propyl)-3a,4,5 ,6,7,7a-hexahydro- 1H-benzoimidazole; N- 10 1-(3-(4-n-butylpiperidine)-1 -yl-propyl)-1H-indole; 1-(3-(4-n-butylpiperidine)-l1-yl-propyl)- 1H-benzoimidazole; Nt 3-methyl-i -(3-(4-n-butylpiperidine)-1 -yl-propyl)-IH-indole; 5-bromo-l1-(3 -(4-n-butylpiperidine)-1 -yl-propyl)- 1H-indole; 3-formyl-l1-(3-(4-n-butylpiperidine)-l1-yl-propyl)- 1H-indole; 7-bromo- 1 -(4-n-butylpiperidine)-1 -yl-propyl)-1H-indole; 1 -(3-(4-n-butylpiperidine)-l1-yl-propyl)- 1H-indazole; 3-(3-(4-n-butylpiperidine)-1 -yl-propyl)-benzo[d]isoxazole; 3-(3-(4-n-butylpiperidine)-1 -yl-propyl)- 1H-indole; 4-nitro-2-(3-(4-n-butylpiperidine)-l1-yl-propyl)-1H-benzoimnidazole; 5-nitro-2-(3-(4-n-butylpiperidine)- 1-yl-propyl)-l1H-benzoimidazole; 4-hydroxy-2-(3-(4-n-butylpiperidine)-l1-yl-propyl)- 1H-benzoimnidazole; 2-(3-(4-n-butylpiperidine)- 1 -yl-propyl)- 1H-benzoimidazole; 4-methyl-2-(3-(4-n-butylpiperidine)-1 -yl-propyl)- 1H-benzoiniidazole; 3-(2-(4-n-butylpiperidine)-1 -yl-ethyl)-1H-indole; or 3-(3-(4-n-butylpiperidine)-1 -yl-propyl)- 1H-indazole. A method of increasing an activity of a cholinergic receptor comprising contacting the cholinergic receptor or a system containing the cholinergic receptor with an effective amount of at least one compound of formula Z, Wi Z2QQX wherein: WO 01/83472 PCTJUS01/13561 Z, is CR 1 or N, Z 2 is CR 2 or N, Z 3 is CR 3 or N, and Z 4 is CR 4 or N, where no more than two Of ZI, Z 2 Z 3 and Z 4 are N; W, isO0, S, or NR 5 one of W 2 and W 3 is N or CR&, and the other of W 2 and W 3 is CG; W, is NG, W 2 is CR 5 or N,and W 3 is CR6or N;or Wand W 3 are N, and W 2 is NG; G is offormula QDl: c-I(CH 2 Z N t<R0 00 Y is 0, S, CHOH, -NR 7 -CH=N-, or absent; C-I p is 1, 2, 3, 4 or Z is CR R 9 or absent; each t is 1, 2, or 3; each RI, R 2 R 3 and R 4 independently, is H, amino, hydroxyl, halo, or straight- or branched-chain C 1 6 alkyl, C 2 -6 alkenyl, C 2 alkynyl, C 1 6 heteroalcyl, C 1 6 haloalkyl, -CN, CF 3 -C0Rii, -NO 2 -SRii, -NHC(O)R 11 -C(O)NR 12 R? 13 -NR 12 R 1 3 NR IIC(O)NR 12 R 1 3 -S0 2 NR 12 R 1 3 0OC(O)RII, -O(CH 2 )qNR1 2 RI 3 or -(CH2)qNR12RI3, where q is an integer from 2 to 6, or R, and R 2 together form -NH-N=N- or R 3 and R 4 together form NH-N=N-; each R 5 R 6 and R 7 independently, is H, C 1 6 alkyl; formyl; C 3 cycloalkyl; C 5 .6 aryl, optionally substituted with halo or C 1 6 alkyl; or C 5 6 heteroaryl, optionally substituted with halo or C 1 6 alkyl; each R 8 and R9, independently, is H or straight- or branched-chain C 1 8 alkyl; RIO is straight- or branched-chain C 1 s alkyl, C 2 8 alkenyl, C 2 8 ailcynyl, C 1 8 alkylidene, C 1 .8s alkoxy, C 1 8 heteroalkyl, C 1 8 aminoalkyl, C 1 8 haloalkyl, C 1 8 alkoxycarbonyl, C 1 s hydroxyalcoxy, C 1 8 hydroxyalkyl, -SHK CI.s allcylthio, -O-CH 2 -C 5 6 aryl, -C(O)-C 5 6 aryl substituted With C 1 3 ailkyl or halo, C 5 6 aryl, C 5 6 cycloalkyl, C5.. 6 heteroaryl, C5-. 6 heterocycloalkyl, -NR 1 2 RI 3 -C(O)NR 12 RI 3 -NP. 1 C(O)NR 12 R 1 3 -CR 1 1 R 12 R 13 -OC(O)R 11 (O)(CH 2 )sNRI 2 RI3 or -(CH 2 )SNR 12 R 1 3 s being an integer from 2 to 8; R 10 O is H, straight- or branched-chain C 1 8 alkyl, C 2 8 alkenyl, C 2 8 ailcynyl, C 1 s alkylidene, C 1 8 alkoxy, C 1 8 heteroalkyl, C 1 8 aminoallcyl, C 1 8 haloallcyl, C 1 8 alkoxycarbonyl, C 1 8 hydroxyalkoxy, C 1 8 hydroxyalcyl, or C 1 8 allcylthio; WO 01/83472 PCT/US01/13561 each R 1 1 independently, is H, straight- or branched-chain C 1 -8 alkyl, C2- 8 alkenyl, C2-8 alkynyl, C 2 -8 heteroalkyl, C 2 -8 aminoalkyl, C2- 8 haloalkyl, Ci-8 alkoxycarbonyl, C2- 8 hydroxyalkyl, -C(0)-C5-6 aryl substituted with C1- 3 alkyl or halo, Cs- aryl, C6 heteroaryl, C-_ S6 cycloalkyl, C5-6 heterocycloalkyl, -C(O)NR 1 2 R 1 3 -CRsR 2 R 3 -(CH 2 )tNR 1 2 R 1 3 t is an S 5 integer from 2 to 8; and c, each R 12 and R 13 independently, is H, CI-6 alkyl; C 3 6 cycloalkyl; C 5 6 aryl, optionally substituted with halo or Ci-6 alkyl; or Cs- heteroaryl, optionally substituted with halo or Ci-6 alkyl; or RI 2 and R1 3 together form a cyclic structure; 00 or a pharmaceutically acceptable salt, ester or prodrug thereof. 10 36. The method of claim 35 wherein the cholinergic receptor is a muscarinic receptor. 0 37. The method of claim 36 wherein the muscarinic receptor is of the ml muscarinic receptor CI subtype. 38. The method of claim 36 wherein the muscarinic receptor is of the m4 muscarinic receptor subtype. 39. The method of claim 36 wherein the muscarinic receptor is in the central nervous system. The method of claim 36 wherein the muscarinic receptor is in the peripheral nervous system. 41. The method of claim 36 wherein the muscarinic receptor is in the gastrointestinal system, heart, endocrine glands, or lungs. 42. The method of claim 36 wherein the muscarinic receptor is truncated, mutated, or modified. 43. The method of claim 35 wherein the activity is a signaling activity of a cholinergic receptor. 44. The method of claim 35 wherein the activity is associated with muscarinic receptor activation. The method of claim 35 wherein the compound is a cholinergic agonist. 46. The method of claim 35 wherein the compound is selective for the ml, or m4 muscarinic receptor subtype, or both the ml and m4 muscarinic receptor subtypes. 47. A method of activating a cholinergic receptor comprising contacting the cholinergic receptor or a system containing the cholinergic receptor with an effective amount of at least one compound of claim 1. 48. The method of claim 47 wherein the compound is a cholinergic agonist. 49. The method of claim 47 wherein the compound is selective for the ml, m4, or both the ml and m4 muscarinic receptor subtype. WO 01/83472 PCT/US01/13561 The method of claim 47 wherein the cholinergic receptor is a muscarinic receptor. 51. The method of claim 47 wherein the muscarinic receptor is the ml or m4 muscarinic Sreceptor subtype. S52. The method of claim 47 wherein the muscarinic receptor is in the central nervous system. 53. The method of claim 47 wherein the muscarinic receptor is in the peripheral nervous c system. 54. The method of claim 47 wherein the muscarinic receptor is in the gastrointestinal system, Sheart, endocrine glands, or lungs. 00 S 55. The method of claim 47 wherein the muscarinic receptor is truncated, mutated, or ci 10 modified. 056. A method of treating a disease condition associated with a cholinergic receptor C comprising administering to a subject in need of such treatment an effective amount of at least one compound of claim 1. 57. The method of claim 56 wherein the disease condition is selected from the group consisting of cognitive impairment, forgetfulness, confusion, memory loss, attentional deficits, deficits in visual perception, depression, pain, sleep disorders, psychosis, hallucinations, aggressiveness, paranoia, and increased intraocular pressure. 58. The method of claim 56 wherein the disease condition is selected from the group consisting of neurodegenerative disease, Alzheimer's disease, Parkinson's disease, Huntington's chorea, Friederich's ataxia, Gilles de la Tourette's Syndrome, Down Syndrome, Pick disease, dementia, clinical depression, age-related cognitive decline, attention-deficit disorder, sudden infant death syndrome, and glaucoma. 59. The method of claim 56 wherein the disease condition is associated with a cholinergic receptor dysfunction. 60. The method of claim 56 wherein the disease condition is associated with decreased activity of a cholinergic receptor. 61. The method of claim 56 wherein the disease condition is associated with loss of cholinergic receptors. 62. The method of claim 56 wherein the cholinergic receptor is a muscarinic receptor 63. The method of claim 62 wherein the muscarinic receptor is the ml or m4 muscarinic receptor subtype. 64. The method of claim 62 wherein the muscarinic receptor is in the central nervous system. The method of claim 62 wherein the muscarinic receptor is in the peripheral nervous system. WO 01/83472 PCT/US01/13561 66. The method of claim 62 wherein the muscarinic receptor is in gastrointestinal system, heart, endocrine glands, or lungs. 67. The method of claim 62 wherein the muscarinic receptor is truncated, mutated, or Smodified. 68. A method of treating a disease condition associated with reduced levels of acetylcholine CI comprising administering to a subject in need of such treatment an effective amount of at least one compound of claim 1. N 69. A method of treating Alzheimer's Disease comprising administering to a subject in need OC of such treatment an effective amount of at least one compound of claim 1. I 10 70. A method of treating cognitive impairment comprising administering to a subject in need of such treatment an effective amount of at least one compound of claim 1. CI 71. A method of treating glaucoma comprising administering to a subject in need of such treatment an effective amount of at least one compound of claim 1. 72. A method of treating pain comprising administering to a subject in need of such treatment an effective amount of at least one compound of claim 1. 73. A method of treating schizophrenia comprising administering to a subject in need of such treatment an effective amount of at least one compound of claim 1 74. A method for identifying a genetic polymorphism predisposing a subject to being responsive to amount of at least one compound of claim 1, comprising: administering to a subject an therapeutically effective amount of the compound; measuring the response of said subject to said compound, thereby identifying a responsive subject having an ameliorated disease condition associated with a cholinergic receptor; and identifying a genetic polymorphism in the responsive subject, wherein the genetic polymorphism predisposes a subject to being responsive to the compound. The method of claim 74 wherein the ameliorated disease condition is associated with the ml or m4 muscarinic receptor subtype. 76. A method for identifying a subject suitable for treatment with at least one compound of claim 1, comprising detecting the presence of a polymorphism in a subject wherein the polymorphism predisposes the subject to being responsive to said compound, and wherein the presence of the polymorphism indicates that the subject is suitable for treatment with said compound of claim 1.
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