EP1799676A2 - Neue bicyclische antibiotika - Google Patents

Neue bicyclische antibiotika

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Publication number
EP1799676A2
EP1799676A2 EP05784860A EP05784860A EP1799676A2 EP 1799676 A2 EP1799676 A2 EP 1799676A2 EP 05784860 A EP05784860 A EP 05784860A EP 05784860 A EP05784860 A EP 05784860A EP 1799676 A2 EP1799676 A2 EP 1799676A2
Authority
EP
European Patent Office
Prior art keywords
methoxy
pyran
tetrahydro
dihydro
quinolin
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.)
Withdrawn
Application number
EP05784860A
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English (en)
French (fr)
Inventor
Christian Hubschwerlen
Jean-Philippe Surivet
Cornelia Zumbrunn Acklin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Actelion Pharmaceuticals Ltd
Original Assignee
Actelion Pharmaceuticals Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Actelion Pharmaceuticals Ltd filed Critical Actelion Pharmaceuticals Ltd
Priority to EP05784860A priority Critical patent/EP1799676A2/de
Priority claimed from PCT/EP2005/010154 external-priority patent/WO2006032466A2/en
Publication of EP1799676A2 publication Critical patent/EP1799676A2/de
Withdrawn legal-status Critical Current

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Definitions

  • the present invention concerns novel antibiotics, pharmaceutical antibacterial compositions containing them and the use thereof in the manufacture of a medicament for the treatment of infections (e.g. bacterial infection).
  • infections e.g. bacterial infection
  • These compounds are useful antimicrobial agents effective against a variety of human and veterinary pathogens including among others Gram positive and Gram negative aerobic and anaerobic bacteria and mycobacteria.
  • Enterobacteriacea are cephalosporin and quinolone resistant; - P. aeruginosa are ⁇ -lactam and quinolone resistant.
  • microorganisms that are causing persistent infections are increasingly being recognized as causative agents or cofactors of severe chronic diseases like peptic ulcers or heart diseases.
  • a new type of quinoline or naphthyridine derivatives having antibacterial activity and therefore useful for treating infections in mammals, particularly in humans, have been reported.
  • WO 99/37635, WO 00/21948, WO 00/21952, WO 00/43383, WO 03/101138, WO 01/025227, WO 02/040474 and WO 2004/011454 disclose quinoline, naphthyridine and quinazoline derivatives containing a 4-methylpiperidinyl spacer.
  • WO 00/78748, WO 02/50040 and WO 02/050061 disclose quinoline and naphthyridine derivatives containing a piperazinyl spacer.
  • WO 01/07432, WO 01/07433, WO 02/08224, WO 02/056882, WO 03/064421, WO 03/064431, WO 2004/02490 and WO 2004/058144 disclose quinoline, quinoxaline and naphthyridine derivatives containing a 4-aminopiperidinyl spacer.
  • WO 04/035569 discloses quinoline and naphthyridine derivatives containing a 3-aminomethylpiperidinyl spacer.
  • WO 2004/002992, WO 03/087098, WO 2004/014361 and WO 2004/035569 disclose quinoline, quinoxaline and naphthyridine derivatives containing a 4-aminocyclohexyl spacer.
  • novel bicyclic derivatives are useful antimicrobial agents and effective against a variety of multi-drug resistant bacteria.
  • the present invention relates to novel bicyclic derivatives of the formula
  • R 1 represents alkyl, alkoxy, haloalkoxy, halogen or cyano; one or two of U, V, W and X represent(s) N, the remaining represent CH, or, in the case of U, V and/or W, may also represent CR a and, in the case of X, may also represent CR b ; R a represents halogen; R > b . represents halogen or alkoxy;
  • D represents alkyl, aryl or heteroaryl
  • M is selected from the group consisting of M 1 , M 2 , M 3 and M 4 :
  • B 1 and B 2 each represent independently from each other N or CH; when A 1 represents OCH 2 , B 1 represents CH; n is 1; or n is also O when B 1 is CH; and p is 1; or p is also O when B 2 is CH;
  • R 2 represents hydrogen, alkyl, hydroxyalkyl, alkylcarbonyloxyalkyl, carbamoyloxyalkyl, carboxyalkyl or carbamoylalkyl;
  • R 3 and R 4 each independently represent hydrogen, hydroxy or alkylcarbonyloxy; or R 3 and R 4 together represent a bridged dimethylmethylenedioxy chain attached to the carbons bearing R 3 and R 4 ;
  • R 5 represents hydrogen, alkyl or hydroxyalkyl
  • the dotted line represents a single bond or, when R 3 and R 4 represent hydrogen, also a double bond;
  • a 7 represents NHCO 5 CH 2 CH 2 or OCH 2 ;
  • a 8 represents CH 2 ;
  • R 6 represents hydrogen or alkyl.
  • the compounds of formula I may be compounds of formula IC E
  • R 1 represents alkyl, alkoxy, haloalkoxy, halogen or cyano; one or two of U, V, W and X represent(s) N, the remaining represent CH, or, for one of U, V,
  • W or X may also represent CR a ;
  • R a represents halogen
  • D represents an alkyl radical, a phenyl radical optionally substituted one or twice by substituents independently selected from the halogen atoms or a heteroaryl radical
  • M is selected from the group consisting of M 1 , M 2 , M 3 and M 4 :
  • B 1 and B 2 each represent independently from each other N or CH; when A 1 represents OCH 2 , B 1 represents CH; n is 1; or n is also O when B 1 is CH; and. p is 1; or p is also O when B 2 is CH;
  • R 2 represents hydrogen or hydroxyalkyl
  • R 3 and R 4 each independently represent hydrogen or hydroxy; or R 3 and R 4 together represent a bridged dimethylmethylenedioxy chain attached to the carbons bearing R 3 and R 4 ;
  • R 5 represents hydrogen; and the dotted line represents a single bond or, when R 3 and R 4 represent hydrogen, also a double bond;
  • a 5 represents NHCO(CH 2 ) m , NHCOCH 2 O or O(CH 2 ) q ; m is 0, 1 or 2; q is 1, 2 or 3 and
  • a 7 represents NHCO, CH 2 CH 2 or OCH 2 ;
  • a 8 represents CH 2 ; and
  • R 6 represents hydrogen.
  • the compounds of formula I may also be compounds of formula IC EP 2
  • R 1 represents alkyl, alkoxy, haloalkoxy, halogen or cyano
  • one or two of U, V, W and X represent(s) N, the remaining represent CH, or, in case of U, V and/or W, may also represent CR a and, in the case of X, may also represent CR b
  • R a represents halogen
  • R b represents halogen or alkoxy
  • D represents alkyl, phenyl or heteroaryl
  • M is selected from the group consisting of M 1 , M 2 , M 3 and M 4 : wherein
  • B 1 and B 2 each represent independently from each other N or CH; when A 1 represents OCH 2 , B 1 represents CH; n is 1; or n is also O when B 1 is CH; and p is 1 ; or p is also O when B 2 is CH;
  • R 2 represents hydrogen or hydroxyalkyl
  • R 3 and R 4 each independently represent hydrogen or hydroxy; or R 3 and R 4 together represent a bridged dimethylmethylenedioxy chain attached to the carbons bearing R 3 and R 4 ;
  • R 5 represents hydrogen; and the dotted line represents a single bond or, when R 3 and R 4 represent hydrogen, also a double bond;
  • a 5 represents NHCO(CH 2 ) m , NHCOCH 2 O or O(CH 2 ) q ; m is 0, 1 or 2; q is 1, 2 or 3 and
  • a 7 represents NHCO, CH 2 CH 2 or OCH 2 ;
  • a 8 represents CH 2 ; and
  • R 6 represents hydrogen.
  • Another aspect of this invention relates to compounds of formula Ip 2
  • R 1 represents alkyl, alkoxy, haloalkoxy, halogen or cyano; one or two of U, V, W and X represent(s) N, the remaining represent CH, or, in case of U, V and/or W, may also represent CR a and, in the case of X, may also represent CR b ; R a represents halogen;
  • R b represents halogen or alkoxy
  • D represents alkyl, aryl or heteroaryl
  • M is selected from the group consisting of M 1 , M 2 , M 3 and M 4 : wherein
  • B 1 and B 2 each represent independently from each other N or CH; when A 1 represents OCH 2 , B 1 represents CH; n is 1; or n is also O when B 1 is CH; and p is 1 ; or p is also O when B 2 is CH;
  • R 2 represents hydrogen, alkyl, hydroxyalkyl, alkylcarbonyloxyalkyl, carbamoyloxyalkyl, carboxyalkyl or carbamoylalkyl;
  • R 3 and R 4 each independently represent hydrogen, hydroxy or alkylcarbonyloxy; or R 3 and R 4 together represent a bridged dimethylmethylenedioxy chain attached to the carbons bearing R 3 and R 4 ;
  • R 5 represents hydrogen, alkyl or hydroxyalkyl; and the dotted line represents a single bond or, when R 3 and R 4 represent hydrogen, also a double bond;
  • a 7 represents NHCO, CH 2 CH 2 or OCH 2 ;
  • a 8 represents CH 2 ;
  • R 6 represents hydrogen or alkyl.
  • a further aspect of this invention relates to compounds of formula Ip 1
  • R 1 represents alkyl, alkoxy, halogen or cyano
  • one or two of U, V, W and X represent(s) N, the remaining represents CH, or, in case of U and/or X, also CR
  • R represents alkoxy or halogen
  • D represents alkyl, aryl or heteroaryl
  • M is one of the spacers M 1 , M 2 and M 3 : wherein
  • B 1 and B 2 each represent independently from each other N or CH; when A 1 represents OCH 2 , B 1 represents CH; n is the integer 1; or n is also O when B 1 is CH; and p is the integer 1; or p is also O when B 2 is CH;
  • R 2 represents hydrogen, alkyl, hydroxyalkyl, alkylcarbonyloxyalkyl, carbamoyloxyalkyl, carboxyalkyl or carbamoylalkyl;
  • R 3 and R 4 each independently represent hydrogen, hydroxy or alkylcarbonyloxy;
  • R 5 represents hydrogen or alkyl; and the dotted line represents a single bond or, when R 3 and R 4 represent hydrogen, also a double bond;
  • a further emtoodiment of the bicyclic derivatives of the above formula I 5 I CE or Ip 1 relates to their prodrugs, their tautomers, their optically pure enantiomers, mixtures of enantiomers, racemates, optically pure diastereoisomers, mixtures of diastereoisomers, diastereoisomeric racemates, mixture of diastereoisomeric racemates, meso forms, pharmaceutically acceptable salts, solvent complexes and morphological forms thereof.
  • Particularly preferred are the optically pure enantiomers, optically pure diastereoisomers, meso forms, pharmaceutically acceptable salts, solvent complexes and morphological forms.
  • alkyl refers to a saturated straight or branched chain alkyl group, containing from one to ten, preferably one to six, in particular one to four carbon atoms, for example methyl, ethyl, propyl, iso-propyl, butyl, ⁇ -butyl, .sec-butyl, tert-bxxtyl, w-pentyl, iso- pentyl, re-hexyl, 2,2-dimethylbutyl, w-octyl.
  • Any alkyl group as defined herein may be substituted with one, two or more substituents, for example F, Cl, Br, I 5 NH 2 , OH, SH, COOH or NO 2 .
  • substituents for example F, Cl, Br, I 5 NH 2 , OH, SH, COOH or NO 2 .
  • substituted alkyl groups are trifluoromethyl, trifluoroethyl, hydroxyrnethyl, hydroxyethyl, carboxymethyl and carboxyethyl.
  • Alkyl groups may also be substituted by alkylcarbonyloxy, such as in acetoxymethyl, acetoxyethyl, propionyloxymethyl or propionyloxyethyl; by carbamoyloxy, such as in carbamoyloxymethyl or carbamoyloxyethyl; or by carbamoyl, such as in carbamoylmethyl or carbamoylethyl.
  • alkyl groups combined to form alkylcarbonyloxy are exemplified e. g. as acetoxy or propionyloxy.
  • alkoxy is an "alkyl-O" group, where "alkyl” has the above significance. Examples for substituted alkoxy groups are trifluoromethoxy and trifluoroethoxy.
  • halogen refers to fluorine, chlorine, bromine or iodine, preferably to fluorine or chlorine.
  • aryl refers to an aromatic cyclic group with one, two or three rings, having five to 14 carbon ring-atoms preferably from five or six to ten carbon ring-atoms, for example phenyl or naphthyl groups.
  • Any aryl group as defined herein may be substituted with one, two or more substituents, for example F, Cl, Br, I, OH, NH 2 , SH, N3, NO 2 , alkyl groups such as methyl or ethyl, perfluoroalkyl groups such as trifluoromethyl or trifluoroethyl, alkoxy groups such as methoxy, amino groups such as methylamino or dimethylamino, or cyano.
  • substituents for example F, Cl, Br, I, OH, NH 2 , SH, N3, NO 2 , alkyl groups such as methyl or ethyl, perfluoroalkyl groups such as trifluoromethyl or trifluoroethyl, alkoxy groups such as methoxy, amino groups such as methylamino or dimethylamino, or cyano.
  • 4-fluoro-phenyl 4-chloro-phenyl, 4-methoxy-phenyl, 4-methyl-phenyl, 4-trifluoromethyl-phenyl, 4-trifluoromethoxy- phenyl, 2,4-difluoro-phenyl, 2,4-dichloro-phenyl, 2,4-dimethoxy-phenyl, 2,4-dimethyl- phenyl, 2,4-ditrifluoromethyl-phenyl and 2,4-ditrifluoromethoxy-phenyl.
  • heteroaryl refers to an aryl group as defined herein where one, two or more ring-carbon atoms are replaced by an oxygen, nitrogen or sulphur atom, for example pyridyl, imidazolyl, pyrazolyl, quinolinyl, isoquinolinyl, pyrrolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, 1,2,3-triazolyl, 1,2,4-triazolyl, oxadiazolyl, thiadiazolyl, indolyl, indazolyl, tetrazolyl, pyrazinyl, pyrimidinyl and pyridazinyl groups.
  • heteroaryl also covers bicyclic structures such as benzo[l,3]dioxol-5-yl, 2,3-dihydro- benzo [ 1 ,4]dioxin-6-yl, 4H-benzo [ 1 ,4]oxazin-3 -one-6-yl, 4 ⁇ -benzo [ 1 ,4]thiazin-3 -one-6-yl, 3-oxo-3,4-dihydro-2H-benzo[l,4]thiazin-6-yl, lH-pyrido[2,3-b][l,4]thiazin-2-one-7-yl, 2,3-dihydro-[l,4]dioxino[2,3-c]pyridin-7-yl, 2,3-dihydro-[l,4]dioxino[2,3-Z>]pyridin-7-yl, 4H-pyrido[3,2- ⁇ ][l,4]oxazin-3-
  • Any heteroaryl group as defined herein may be substituted with one, two or more substituents, for example F, Cl, Br, I, OH, NH 2 , SH, N 3 , NO 2 , alkyl groups such as methyl or ethyl, perfluoroalkyl groups such as trifluoromethyl or trifluoroethyl, alkoxy groups such as methoxy, amino groups such as methylamino or dimethylamino, or cyano.
  • the present invention also relates to pro-drags that are composed of a compound of formula I P i having a free carboxylic acid and at least one pharmacologically acceptable protective group that will be cleaved off under physiological conditions.
  • prodrugs have been reviewed by Beaumont, Kevin; Webster, Robert; Gardner, Iain; Dack, Kevin in Current Drug Metabolism (2003), 4(6), 461-485.
  • promoities are alkoxy-, aralkyloxy-, 0CH(R a )0C0R b (e.g. pivaloyloxymethyloxy), OCH(R a )OR b , 2-alkyl-, 2-aryl- or 2-aralkyl-oxycarbonyl-2-alkylidene-ethoxy group, 5-alkyl[l,3]dioxol- 2-one-4-yl-methoxy, dialkylamino-alkyloxy or acyloxy as defined herein, e.g.
  • R a and R b are hydrogen, C 1 -C O alkyl, C 2 -C O alkenyl, C 2 -C 6 alkynyl, C 2 -C 6 heteroalkyl, C 2 -C 6 cycloalkyl, C 2 -C 6 heterocycloalkyl, alkylaryl, alkylheteroaryl, heteroalkylcycloalkyl, heteroalkylheteroaryl, aryl, heteroaryl, heterocycloalkylaryl or heterocycloalkylheteroaryl.
  • a free hydroxy group is present on a compound of Formula I, it can be protected as a prodrug of the type sulfate (OSO 3 H), phosphate (OPO 3 H 2 ), oxymethylene phosphate (OCH 2 OPO 3 H 2 ), succinate (OCOCH 2 CH 2 COOH), or ester of naturally occurring amino acids or a derivative thereof
  • alkyl refers to a saturated straight or branched chain alkyl group, containing from one to ten, preferably one to six, and in particular one to four carbon atoms.
  • Representative examples of alkyl groi ⁇ ps include, but are not limited to, methyl, ethyl, propyl, iso-propyl, ⁇ -butyl, wo-butyl, .sec-butyl, tert-butyl, w-pentyl, wo-pentyl, w-hexyl,
  • (Ci-C x )alkyl (x being an integer) refers to a straight or branched chain alkyl group containing 1 to x carbon atoms.
  • alkoxy refers to a saturated straight or branched chain alkoxy group, containing from one to ten, preferably one to six, and in particular one to four carbon atoms.
  • alleoxy groups include, but are not limited to, methoxy, ethoxy, propoxy, /so-propoxy, r ⁇ -bixtoxy, wo-butoxy, sec-butoxy, tert-butoxy or n- hexyloxy.
  • (Ci-C x )alkoxy refers to a straight or branched chain alkoxy group containing 1 to x carbon atoms.
  • (Ci-C 6 )alkoxy-(Ci-C6)alkyl refers to a (CrC6)allcyl group as previously defined itself substituted with a (Ci-C ⁇ )alkoxy group as previously defined.
  • haloalkoxy refers to a saturated straight or branched chain alkoxy group, containing from one to six and preferably one to four carbon atoms, in which at least one hydrogen atom (and possibly all) has been replaced by a halogen atom.
  • Representative examples of haloalkoxy groups include, but are not limited to, trifluoromethoxy o ⁇ difluoromethoxy.
  • (Ci-C x )haloalkoxy (x being an integer) refers to a straight of branched chain haloalkoxy group containing 1 to x carbon a.toms.
  • hydroxyalkyl refers to a saturated straight or branched chain alkyl group substituted once by hydroxy and containing from one to six, and in particular one to four, carbon atoms.
  • alkylcarbonyloxyalkyl refers to an alkylcarbonyloxyalkyl wherein each alk> ⁇ l group is independently a saturated straight or branched cha_in alkyl group containing from one to six, and in particular one to four, carbon atoms.
  • carbamoyloxyalkyl refers to a carbamoyloxyaltcyl wherein the alkyl group is a saturated straight or branched chain alkyl group containing from one to six, and in particular one to four, carbon atoms.
  • carboxyalkyl refers to a carboxyalkyl wherein the alkyl group is a saturat&d straight or branched chain alkyl group containing from one to six, and in particular one to four, carbon atoms.
  • carbamoylalkyl refers to a carbamoylalkyl wherein the alkyl group is a saturated straight or branched chain alkyl group containing from one to six, and in particular one to four, carbon atoms.
  • alkylcarbonyloxy refers to an alkylcarbonyloxy wherein the alkyl group is a saturated straight or branched chain alkyl group containing from one to six, and in particular one to four, carbon atoms.
  • alkoxycarbonylalkyl refers to an alkoxycarbotvylalkyl wherein the alkyl group is a saturated straight or branched chain alkyl group corttaining from one to six, and in particular one to four, carbon atoms and the alkoxy gxoup is a saturated straight or branched chain alkoxy group, containing from one to six, and in particular one to four carbon atoms.
  • halogen refers to fluorine, chlorine, bromine or iodine, preferably to fluorine or chlorine.
  • cycloalkyl used alone or in combination, refers to a saturated cyclic hydrocarbon moiety containing 3 to 7 carbon atoms.
  • (C y -C z )cycloalkyl used alone or in combination, refers to a saturated cyclic hydrocarbon moiety containing y to z carbon atoms.
  • Representative examples of cycloalkyl groups include, but are not limited to, cyclopropyl, cyclopentyl and cyclohexyl.
  • cycloalkylalkyl refers to an alkyl group as previously defined itself substituted by a cycloalkyl group as previously defined.
  • Representative examples of cycloalkylalkyl groups include, but are not limited to, cyclopropylmethyl and cyclohexylmethyl.
  • (C 2 -C6)alkenyl refers to a straight or branched hydrocarbon chain containing 2 to 6 carbon atoms with at least one carbon-carbon double bond.
  • alkenyl include, but are not limited to, ethenyl, 2-propenyl, 3-butenyl, 4-pentenyl or 5-hexenyl.
  • aryl used alone or in combination, refers to an aromatic cyclic group with one, two or three rings, having five to 14 carbon ring-atoms preferably from five or six to ten carbon ring-atoms, for example phenyl or naphthyl groups. Any aryl group as defined herein may be substituted with one, two or more substituents, each of which is independently selected from the group consisting of halogen, alkyl, alkoxy, trifluoromethyl and trifluoromethoxy.
  • aryl examples include phenyl, naphtyl, 4-fluoro-phenyl, 4-chloro-phenyl, 4-methoxy-phenyl, 4-methyl-phenyl, 4-trifluoromethyl- phenyl, 4-trifluoromethoxy-phenyl, 2,4-difluoro-phenyl, 2,4-dichloro-phenyl, 2,4- dimethoxy-phenyl, 2,4-dimethyl-phenyl, 2,4-ditrifluoromethyl-phenyl and 2,4-ditrifluoromethoxy-phenyl.
  • heteroaryl refers to an aryl group as defined herein where one, two or more ring-carbon atoms are replaced by an oxygen, nitrogen or sulphur atom, for example pyridyl, imidazolyl, pyrazolyl, quinolinyl, isoquinolinyl, pyrrolyl, thienyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, 1,2,3-triazolyl, 1,2,4-triazolyl, oxadiazolyl, thiadiazolyl, indolyl, indazolyl, tetrazolyl, pyrazinyl, pyrimidinyl and pyridazinyl groups.
  • heteroaryl also covers bicyclic structures selected from the group consisting of benzo[l,3]dioxol-5-yl, 2,3-dihydro-benzo[l,4]dioxin-6-yl, 2,3-dihydro-
  • Any heteroaryl group as defined herein may be substituted with one, two or more substituents on its aromatic ring(s), said substituents being from the group consisting of halogen, alkyl and alkoxy; preferably, any heteroaryl group as defined herein may be substituted with one halogen substituent.
  • heteroaryl groups include, but are not limited to, benzo[l,3]dioxol-5-yl, 2,3-dihydro-benzo[l,4]dioxin-6-yl, 2,3-dihydro-[l,4]dioxino[2,3-6]pyridin-6-yl, 2,3-dihydro-[l,4]dioxino[2,3-c]pyridin-7-yl, 3-oxo-3,4-dihydro-2H-benzo[l,4]thiazin-6-yl, 7-fluoro-3-oxo-3,4-dihydro- 2H-benzo[l,4]thiazin-6-yl, 3-oxo-3,4-dihydro-2H-benzo[l,4]oxazin-6-yl,
  • the two bonds linking the cyclohexyl ring to the radicals A 5 and A 6 are represented by two bold lines (and not by wedged bonds that would then depict an absolute stereochemistry), this means that the two bonds are in a cis configuration relatively to said cyclohexyl ring (i.e. the radicals A 5 and A 6 are either both above the median plan of the cyclohexyl ring or both under said median plan).
  • the radical R 1 will be alkyl, alkoxy, haloalkoxy or cyano. More preferably, the radical R 1 will be (Ci-C3)alkyl, (Ci-C 3 )alkoxy, (Ci-C 2 )haloalkoxy or cyano (in particular methyl, methoxy or cyano, and notably methoxy or cyano).
  • D will be aryl or heteroaryl, notably phenyl (which may optionally be substituted once or twice by substituents independently selected from halogen, methyl and methoxy) or heteroaryl. More preferably, D will be phenyl substituted once or twice by substituents independently selected from halogen atoms (especially 2,5-difluorophenyl) or heteroaryl. In particular, D will be heteroaryl.
  • radical R a will preferably be fluorine.
  • radical R b will be fluorine.
  • U, V, W and X will be such that one or two of U, V, W and X represent(s) N and the remaining represent CH.
  • U, V, W and X will be such that one or two of U, V, W and X represent(s) N, one of U, V, W and X represents CF and the remaining represent(s) CH.
  • R 1 is preferably (Ci-C3)alkyl, methoxy, ethoxy, trifluoromethyl, trifluoromethoxy or cyano, and in particular methyl, methoxy or cyano.
  • R 1 is preferably (Ci-C3)alkyl, methoxy, ethoxy, trifluoromethyl, trifluoromethoxy or cyano, and in particular methyl, methoxy or cyano.
  • Preferred embodiments of D for the compounds of formula I, ICE, Ip 2 , ICEP2 or I P i are (C 1 -C 9 ) linear alkyl, phenyl, benzofuran-3-yl, thiazol-2-yl or heteroaryl of the formula
  • P is a ring selected from
  • Q is O or S; K, Y and Z are each independently N or CR 3 ; and
  • R 3 is hydrogen or halogen (and in particular hydrogen or fluorine).
  • D will be a heteroaryl of the formula
  • P is a ring selected from
  • Q is O or S; K, Y and Z are each independently N or CR 3 ; and
  • R 3 is hydrogen or halogen (and in particular hydrogen or fluorine).
  • D for the compounds of formula I, I C E, hi, IC E P2 or I P i are: ⁇ 2,3-dihydro-benzo[l,4]dioxin-6-yl; ⁇ 4H-benzo[ 1 ,4]oxazin-3-one-6-yl;
  • the spacer M of the compounds of foxmula I, I C E, Ip2 > I C EP2 or Ipi will be the spacer M 1 .
  • preferred embodiments are the follo ⁇ ving three structures (the group of which will be called M 11 ):
  • a 11 represents NHCO, OCH 2 , CH(OH)CH 2 or CH 2 CH 2 ;
  • a 21 represents CH 2 , CO, CH(OH) or CH(OCONH 2 );
  • Particularly preferred spacers M 1 are the following:
  • Preferred compounds of formula I having the spacer M 1 are the following:
  • the compounds of formula I having the spacer M 1 will be selected from the first 48 compounds mentioned in the list hereabove.
  • the following compounds of formula I having the spacer M ! are preferred:
  • the spacer M of the compounds of formula I, ICE, Ip 2 , I C EP2 or Ipi will be the spacer M 2 .
  • Preferred compounds of formula I wherein M is M" are those wherein at least one of the following further characteristics is present:
  • a 3 representing OCH 2 , NHCO, CH 2 CH 2 , CH CH, COCH 2 , CH(OH)CH 2 or CH 2 CH(OH), or also, provided U is N, CH(OH)CH(OH);
  • a 4 representing CH 2 or CO, or also, provided D is a non-annelated aryl or heteroaryl group, CH 2 CH CH or CH 2 CONH;
  • ⁇ ⁇ R 2 representing hydrogen, alkyl or hydroxyalkyl
  • ⁇ * R 5 representing hydrogen, alkyl or hydroxyethyl
  • More preferred compounds of formula I wherein M is M 2 are those wherein at least one of the following further characteristics is present:
  • ⁇ R 2 representing hydrogen or hydroxyalkyl (and preferably hydrogen or hydroxyethyl); ⁇ R 3 and R 4 each independently representing hydrogen or hydroxy; ⁇ R 5 representing hydrogen or hydroxyethyl;
  • Particularly preferred compounds of formula I wherein M is M 2 are those wherein at least one of the following further characteristics is present:
  • ⁇ A 3 representing CH(OH)CH 2 or CH 2 CH(OH), or also, provided U is N, CH(OH)CH(OH); ⁇ A 4 representing CH 2 or CO;
  • spacer M 2 its stereochemistry will preferably be the following (called M 21 hereafter):
  • M 211 the stereochemistry of M 2 will preferably be the following (called M 211 hereafter):
  • Preferred spacers M 2 are the following:
  • spacers M 2 are also preferred.
  • spacers M 2 are the spacers M 221 , M 222 , M 223 , M 224 and M 225 represented below:
  • Preferred compounds of formula I having the spacer M 2 are the following: • (2,3-dihydro-benzo[l,4]dioxin-6-ylrnethyl)-[(3i? s ,6iS)-6-(6-rnethoxy-quinolin- 4-yloxymethyl)-3,6-dihydro-2H-pyran-3-yl]-amine;
  • the compounds of formula I having the spacer M 2 will be selected from the first 134 compounds mentioned in the list hereabove (and even more preferably from, the first 24 compounds mentioned in the list hereabove).
  • spacers M 3 wherein B 6 represents CH the relative stereochemistry is preferably the following (called M 31 hereafter):
  • spacers M 3 wherein B 6 represents CH the relative stereochemistry is more preferably the following (called M 311 hereafter):
  • Preferred spacers M 3 are the following:
  • Preferred compounds of the fo ⁇ nula I having the spacer M 3 are the following:
  • the compounds of formula I having the spacer M 3 will be selected from the first 28 compounds mentioned in the list hereabove.
  • ICE, IP2, I C EP2 or Ipi will be the spacer M 4 .
  • Preferred spacers M 4 are the following:
  • Preferred compounds of formula I having the spacer M 4 are the following:
  • Compounds of formula I are suitable for the use as ohemotherapeutic active compounds in human and veterinary medicine and as substances for preserving inorganic and organic materials in particular all types of organic materials for example polymers, lubricants, pa-ints, fibres, leather, paper and wood.
  • These compounds according to the invention are particularly active against bacteria and bacteria-like organisms. They are therefore particularly suitable in human and veterinary medicine for the prophylaxis and chemotherapy of local and systemic infections caused by these pathogens as well as disorders related to bacterial infections comprising pneumonia, otitis media, sinusitis, bronchitis, tonsillitis, and mastoiditis related to infection, by Streptococcus pneumoniae, Haemophilus influenzae, Moraxella catarrhalis, Staphylococcus aureus, Enterococcus faecalis, E. faecium, E. casselflcrvus, S. epidermidis, S.
  • haemolyticvcs or Peptostreptococcus spp.
  • pharyngitis rheumatic fever, and glomerulonephritis related to infection by Streptococcus pyogenes, Groups C and G streptococci, Corynebaterium diphtheriae, or Actinobacillus haemolyticum
  • respiratory tract infections related to infection by Mycoplasma pneumoniae, Legionella pneumophila, Streptococcus pneumoniae, Haemophilus influenzae, or Chlamydia pneumoniae
  • blood and tissue infections includecding endocarditis and osteomyelitis, caused by S. aureus, S. haemolyticus, E.
  • E. faecalis E. faec ⁇ ium
  • E. durans including strains resistant to known antibac-terials such as, but not limited to, beta- lactams, vancomycin, aminoglycosides, quinolones, chloramphenicol, tetracyclines and macrolides; uncomplicated skin and soft tissue infections and abscesses, and puerperal fever related to infection by Staphylococcus aureus, coa-gulase-negative staphylococci (i.es., S. epidermidis, S.
  • known antibac-terials such as, but not limited to, beta- lactams, vancomycin, aminoglycosides, quinolones, chloramphenicol, tetracyclines and macrolides
  • uncomplicated skin and soft tissue infections and abscesses and puerperal fever related to infection by Staphylococcus aureus, coa-gulase-negative staphylococci (
  • Streptococcus pyogenes Streptococcus agalaetiae, Streptococcal groups C-F (minute colony streptococci), viridans streptococci, Corynehacterium minutissimum, Clostridium spp., or Bartonella henselae; uncomplicated acute urinary tract infections related to infection by Staphylococcus aureus, coagulase-negative staphylococcal species, or Enterococcus spp.; urethritis and cervicitis; sexually transmitted diseases related to infection by Chlamydia ti-achomatis, Haemophilus ducreyi, Treponema pallidum, Ureaplasma urealyticum, or Neiserria gonorrheae; toxin diseases related to infection by S.
  • aureus food poisoning and toxic shock syndrome
  • Groups A, B, and C streptococci ulcers related to infection by Helicobacter pylori; systemic febrile syndromes related to infection by Borrelia recurrentis; Lyme disease related to infection by Borrelia burgdorferi; conjunctivitis, keratitis, and dacrocystitis related to infection by Chlamydia trachomatis, Neisseria gonorrhoeae, S. aureus, S. pneumoniae, S. pyogenes, H.
  • MAC Mycobacterium avium complex
  • chelonei gastroenteritis related to infection by Campylobacter jejuni; intestinal protozoa related to infection by Cryptosporidium spp.; odontogenic infection related to infection by viridans streptococci; persistent cough related to infection by Bordetella pertussis; gas gangrene related to infection by Clostridium perfringens or Bacteroides spp.; and atherosclerosis or cardiovascular disease related to infection by Helicobacter pylori or Chlamydia pneumoniae.
  • Compounds of formula I according to the present invention are further useful for the preparation of a medicament for the treatment of infections that are mediated by bacteria such as E. coli, Klebsiella pneumoniae and other Enterobacteriaceae, Acinetobacter spp., Stenothrophomonas maltophilia, Neisseria meningitidis, Bacillus cereus, Bacillus anthracis, Corynebacterium spp., Propionibacterium acnes and bacteroide spp.
  • bacteria such as E. coli, Klebsiella pneumoniae and other Enterobacteriaceae, Acinetobacter spp., Stenothrophomonas maltophilia, Neisseria meningitidis, Bacillus cereus, Bacillus anthracis, Corynebacterium spp., Propionibacterium acnes and bacteroide spp.
  • Compounds of formula I according to the present invention are further useful to treat protozoal infections caused by Plasmodium malaria, Plasmodium falciparum, Toxoplasma gondii, Pneumocystis carinii, Trypanosoma brucei and Leishmania spp.
  • bacterial infections can also be treated in other species like pigs, ruminants, horses, dogs, cats and poultry.
  • the present invention also relates to pharmacologically acceptable salts, or solvates and hydrates, respectively, and to compositions and formulations of compounds of formula I.
  • pharmacologically acceptable salts of sufficiently basic compounds of formula I are selected from the group consisting of salts of physiologically acceptable mineral acids like hydrochloric, hydrobromic, sulfuric and phosphoric acid; or salts of organic acids like methanesulfonic, p-toluenesulfonic, lactic, acetic, trifluoroacetic, citric, succinic, fumaric, maleic and salicylic acid.
  • a sufficiently acidic compound of formula I may form alkali or earth alkaline metal salts, for example sodium, potassium, lithium, calcium or magnesium salts; ammonium salts; or organic base salts, for example methylamine, dimethylamine, trimethylamine, triethylamine, ethylenediamine, ethanolamine, choline hydroxide, meglumin, piperidine, morpholine, tris-(2-hydroxyethyl)amine, lysine or arginine salts.
  • Compounds of formula I may be solvated, especially hydrated. The hydratation can occur during the process of production or as a consequence of the hygroscopic nature of the initially water free compounds of formula I.
  • the pharmaceutical composition according to the present invention contains at least one compound of formula I (or a pharmaceutically acceptable salt thereof) as the active agent and optionally carriers and/or diluents and/or adjuvants, and may also contain additional known antibiotics.
  • the present invention also relates to pro-drugs that are composed of a compound of formula I or I C E having at least one pharmacologically acceptable protective group that will be cleaved off under physiological conditions.
  • prodrugs have been reviewed by Beaumont, Kevin; Webster, Robert; Gardner, Iain; Dack, Kevin in Current Drug Metabolism (2003), 4(6), 461-485.
  • promoities are, in case the compound of formula I or I CE contains a free carboxylic acid, alkoxy- (e.g. ethoxy), phenalkyloxy- (e.g. benzyloxy), OCH(R a )OCOR b (e.g. pivaloyloxymethyloxy), OCH(R a )OCO 2 R b ⁇ e.g.
  • therapeutically useful agents that contain compounds of formula I, their solvates, salts or formulations are also comprised in the scope of the present invention.
  • compounds of formula I will be administered by using the known and acceptable modes known in the art, either alone or in combination with any other therapeutic agent.
  • Such therapeutically useful agents can be administered by one of the following routes: ora.1, e.g. as tablets, dragee, coated tablets, pills, semisolids, soft or hard capsules, for example soft and hard gelatine capsules, aqueous or oily solutions, emulsions, suspensions or syrups, parenteral including intravenous, intramuscular and subcutaneous injection, e.g.
  • transdermal delivery system such as a plaster containing the active ingredient, topical or intranasal.
  • TDS transdermal delivery system
  • the substance of the present invention can also be used to impregnate or coated devices that are foreseen for implantation like catheters or artificial joints.
  • the pharmaceutically useful agents may also contain additives for conservation, stabilisation, e.g. UV stabilizers, emulsif ⁇ ers, sweetener, aromatisers, salts to change the osmotic pressure, buffers, coating additives and antioxidants.
  • Another aspect of the invention concerns a method for the treatment of disease comprising the administration to the patient of a pharmaceutically active amount of a derivative according to formula I.
  • any preferences indicated for the compounds of formula I (whether for the compounds themselves, salts thereof, compositions containing the compounds or salts thereof, uses of the compounds or salts thereof, etc.) apply mutatis mutandis to compounds of formula Ip 2 , compounds of formula ICE, compounds of formula ICEP2 and compounds of formula Ip 1 .
  • the compounds of formula I or I CE may also be used for cleaning purposes, e.g. to remove pathogenic microbes and bacteria from surgical instruments or to make a room or an area aseptic.
  • the compounds of formula I or I CE could be conta-ined in a solution or in a spray formulation.
  • the compounds of formula I (including tihe compounds of formula I CE or Ip 1 ) can be manufactured in accordance with the present invention by
  • R 1 , U, V, W, X and D are as before and A 0 M 0 is one of the spacers M 1 , M 2 , M 3 and M 4 , in which A 0 is A 1 , A 3 , A 5 or A 7 , respectively, functionally modified, as well as the reactive group L 1 , to connect the two moieties of formulas II and III, and M 0 is one of the spacers M 1 , M 2 , M 3 and M 4 diminished by A 1 , A 3 , A 5 or A 7 , respectively, and M 1 , M 2 , M 3 , M 4 , A 1 , A 3 , A 5 and A 7 are as before, or
  • L 2 is a reactive group yielding the group A 2 , A 4 , A 6 , A 8 , A 2 diminished by ISfH or A 6 diminished by CH 2 NH, respectively, and A ! -A 8 , B 1 , R 1 , R 3 , R 4 , R 5 , R 6 ,U, V, W, X, D, n and o are as before,
  • the compounds of formula I P i can be manufactured in accordance with the present invention by
  • R 1 , U, V, W, X and D are as before and A 0 M 0 is one of the spacers M 1 , M 2 and M 3 , in which A 0 is A 1 , A 3 or A 5 , respectively, functionally modified, as well as the reactive group L 1 , to connect the two moieties of formulas II and III, and M 0 is one of the spacers M 1 , M 2 and M 3 diminished by A 1 , A 3 or A 5 , respectively, and M 1 , M 2 , M 3 , A 1 , A 3 and A 5 are as before, or
  • L 2 is a reactive group yielding the group A 2 , A 4 , A 6 , A 2 diminished by NH or A 6 diminished by CH 2 NH, respectively, and A ! -A 6 , B 1 , R 1 , R 3 , R 4 , R 5 , U, V, W, X, D, n and o are as before,
  • quinoline, [l,5]-naphthyridine, quinazoline and quinoxaline derivatives of formula II are prepared following literature procedures.
  • 4-hydroxycarboxylic acid ester derivative with subsequent hydrolysis to acid, followed by thermal decomposition in inert solvents (J.T. Adams, J. Am. Chem. Soc. (1946), 68, 1317).
  • M 02 is the group M 011 wherein B 1 is CHC 5 M 012 wherein B 1 is CH, or M 013 , M 014 , M 015 or M 016 , wherein A 0 is HOOC(CH 2 ) t and t is 0, 1 or 2 and E is a protecting group; the other symbols have their above meanings.
  • Compounds of formula I can for example be obtained from an amine 1-1 and an acid 1-2.
  • a 4-h.ydroxy-[l,5]-naphthyridine, a 4-hydroxyquinazoline, a 5-hydroxy quinoxaline or a 4-hydroxy quinoline derivative can be converted into the corresponding chloro derivative by heating in phosphorous oxychloride between 40 0 C and 100 0 C neat or in an inert solvent like dichloroethane, or to the corresponding 4-trifluoromethanesulphonyloxy derivative by reaction with trifluoromethanesulphonic anhydride, in the presence of an organic base between -4O°C and 80 0 C in an aprotic solvent like DCM or THF (K. Ritter, Synthesis (1993), 735).
  • 4-amino-[l,5]-naphthyridine, 4-aminoxyquinazoline, 5-amino quinoxaline or 4-amino quinoline derivatives can be obtained by reaction of the corresponding 4- trifluoromethanesulphonyloxy derivatives with ammonia in a solvent like DCM or THF, or with R-propylamine hydrochloride in pyridine between -20 0 C and 100 0 C (R. Radinov, Synthesis (1986), 886).
  • 4-aminoxyquinazoline can also be obtained from its 4-chloro analogue by reaction with ammonia under the same conditions.
  • Carboxylic acids 1-2 may be prepared by Jones' oxidation of the corresponding alcohols using chromium acid and sulphuric acid in water/methanol between 40 0 C and HO 0 C (E. R. H. Jones et al, J. Chem. Soc. (1946), 39).
  • Other oxidising agents may be used for this transformation such as sodium periodate catalysed by ruthenium trichloride (G. F. Tutwiler et al, J. Med. Chem. (1987), 30, 1094), or potassium permanganate (D. E. Reedich et al, J. Org. C/zem. (1985), 50, 3535.
  • Derivatives 1-3 can be obtained by reacting the 4-amino derivative 1-1 with a carboxylic acid derivative 1-2, in the presence of an activating agent such as DCC, 1- (dimethylaminopropyl)- 3-ethylcarbodiimide hydrochloride (EDC) or 1-hydroxybenzotriazole (HOBT) or HATU (G. Benz in Comprehensive Organic Synthesis, B.M. Trost, I. Fleming, Eds; Pergamon Press: New York (1991), vol. 6, p. 381) between -2O°C and 60 0 C in an dry aprotic solvent like DCM acetonitrile or DMF.
  • the carboxylic acid can be activated by conversion into its corresponding acid chloride by reaction with oxalyl chloride or thionyl chloride neat or in a solvent like DCM between -20° and 6O 0 C.
  • protecting group (E) such as Boc or Cbz on a nitrogen atom in 1-3 is carried out under standard acidic conditions to give the corresponding free amine.
  • the Cbz group can be removed under catalytic hydrogenation over palladium on charcoal.
  • protecting groups to mask reactive functionality is wellknown to those of skill in the art, and other protecting groups are listed in reference book such as PJ. Kocienski 'Protecting Groups', Thieme (1994).
  • the amine is then reacted with an (hetero)aryl aldehyde and a suitable reducing agent to provide the homologue 1-4.
  • the intermediate imine may be formed in a variety of protic or aprotic solvents such as DMF, N,N-dimethylacetamide, 1,2-DCE, MeOH, MeCN, in presence or not of a drying agent such as molecular sieves.
  • the imine is reduced subsequently or simultaneously with a suitable reagent such a NaBH 4 , sodium triacetoxyborohydride or sodium cyanoborohydride (R.O. and N4.K. Hutchins Comprehensive Organic Synthesis, B.M. Trost, I. Fleming, Eds; Pergamon Press: New York (1991), vol. 8, p. 25-78).
  • the amine may also be homologated to give product 1-4 by nucleophilic displacement of a suitable alkyl (hetero)aryl halide, mesylate or tosylate between -20 0 C and 100 0 C in a dry aprotic solvent like DCM, MeCN, DMF or THF in presence of a base such as K 2 CO 3 or DIPEA.
  • a suitable alkyl (hetero)aryl halide mesylate or tosylate between -20 0 C and 100 0 C in a dry aprotic solvent like DCM, MeCN, DMF or THF in presence of a base such as K 2 CO 3 or DIPEA.
  • M 03 is one of the group M 011 to M 016 , wherein A 1 , A 3 , A 5 and A 7 are H 2 NC(O)(CH 2 ) U , u is 0, 1 or 2 and E is a protecting group; the other symbols have their above meanings.
  • the intermediate 1-3 can also be obtained from a 4-trifluoromethanesulfonate derivative II-l and an amide derivative II-2.
  • These amide derivatives are obtained from a suitable carboxylic acid 1-2 3 which is converted into an activated form using, for example, EDC and HOBt, SOCl 2 or NHS and DCC between -20°C and 6O 0 C in a dry aprotic solvent like DCM, ethyl acetate or THF, and the activated acid is subsequently reacted with aqueous ammonium hydroxide or gaseous ammonia, to afford amide II-2 in an appropriate solvent such as THF or DCM between -2O 0 C and 60 0 C.
  • the amide II-2 and the 4-trifluoromethanesulphonate II-l are coupled under palladiuin-catalyzed Buchwald-Hartwig conditions (J. Am. Chem. Soc. (1996), 118, 10333) or copper-catalyzed conditions (J. Am. Chem. Soc. (2002), 124, 7421) to afford the derivative 1-3.
  • Various palladium sources and ligands may be used, as well as a variety of solvents, including for example dioxane, toluene.
  • M 04 is the group M 011 wherein B 1 is CH, M 012 wherein B 1 is CH or MI 013 to M 016 , wherein A 1 , A 3 , A 5 and A 7 are HO(CH 2 ) V , v is 1, Z or 3 and the other symbols have their above meanings.
  • the compounds of formula I can also be obtained by coupling, for example, a substituted 4-hydroxy quinoline, 8-hydroxy quinoline 4-hydroxy-[l,5]- naphthyridine, 4-hydroxy-[l,3]-quinazoline or 5-hyclroxy quinoxaline IH-I and an alcohol derivative III-2.
  • the coupling reaction between HI-I and III-2 may be achieved under Mitsunobu conditions (as reviewed in O. Mitsunob> ⁇ , Synthesis 1981, 1).
  • an alcohol ⁇ i-2 and a 4-hydroxy derivative III-l are reacted to form ether ⁇ i-3 in ftie presence of diethyl or diisopropyl azodicarboxylate and triphenylphosphine.
  • the reaction may be performed in a wide range of solvents such as N,N-dimethylformamide, THF, DCM and at a wide range of temperature (between -78°C and 50°CO.
  • An alternate route to HI-3 may require the activation of the alcohol III-2 as for example a tosylate, a triflate or a mesylate by treatment with tosyl chloride, trifluoromethanesulphonic anhydride or mesyl chloride respectively in the presence of an organic base such as triethylamine between -40 0 C and 6O 0 C in a dry aprotic solvent like DCM, acetonitrile or THF.
  • alcohol III-2 reacts with the anion of the 4-hydroxy derivative, generated with a mineral base such as sodium hydride or potassium carbonate or an organic base such, as lithium hexamethyldisilazide, to generate III-3 between -20 0 C and 60 0 C.
  • derivative III-3 can be obtained by reaction of a 4-halogeno quinazoline derivative with an alcohol derivative in presence of a strong base like alkali alkoxide like sodium or potassium, methylate, metal hydride like NaH, DBU or DBN between -20 0 C and 60 0 C in a dry aprotic solvent like DMF, MeCN or THF.
  • a strong base like alkali alkoxide like sodium or potassium, methylate, metal hydride like NaH, DBU or DBN between -20 0 C and 60 0 C in a dry aprotic solvent like DMF, MeCN or THF.
  • the protecting group is removed and th_e free amine is reacted with an alkyl (hetero)aryl halide in presence of a base or with an (hetero)aryl aldehyde in presence of a reducing reagent as previously described .
  • M 05 is the spacer M 1 diminished by A 1 a.xid A 2 and B 1 is N. The remaining symbols are as above.
  • Compounds of the formula I can also be obtained from a 4-oxiranyl derivative IV-I and an amine derivative IV-2.
  • the racemic epoxides IV-I may be prepared from the corresponding 4-carboxaldehydes using trimethylsulfonium iodide in presence of a base (G.A. Epling and aL . J Het. Chem. (1987), 24, 853), or by epoxidation of a 4-vinyl derivatives using an peroxyacid derivative such as MCPBA as an oxidizing reagent between -20 0 C and 60 0 C in an aprotic dry solvent like DCM or THF (Somersekar Rao, A. in Comjprehensive Organic Synthesis, B. MI.
  • the vinyl derivatives can be obtained from the corresponding aldehyde by a Wittig olefination reaction using triphenylmethylene phosphorane (for example generated by treatment of methyl triphenylphosphonium bromide with M-BuLi in THF at -78 0 C) or by reaction of the triflate II- 1 with a vinyl tributyl stannnane under Stille coupling reaction conditions.
  • triphenylmethylene phosphorane for example generated by treatment of methyl triphenylphosphonium bromide with M-BuLi in THF at -78 0 C
  • reaction of the triflate II- 1 with a vinyl tributyl stannnane under Stille coupling reaction conditions.
  • the corresponding chiral epoxides may be obtained using asymmetric catalytic dihydroxylation (AD-mixtures) followed by the chiral diol closure as reviewed by K.B. Sharp less et al. Chem. Rev. (1994), 94, 2483.
  • the optical purity is generally ranging between 10 and 98%, and may be further enhanced by recrystallisation. By such a method, both enantiomers are equally available.
  • the reaction of the bicyclic amine FV-2 and the epoxide IV-I may take place in various solvents such as ethanol, N,N-dimethylformamide, at a temperature generally ranging between O 0 C and 80 0 C. The reaction is helped by the addition of lithium perchlorate.
  • the protecting group of IV-3 is removed and the free amine is reacted with an alkyl (hetero)aryl halide in presence of a base such as DIPEA or K 2 CO3 in a solvent such as MeCN, DMF or EtOH at a temperature ranging between 0 0 C and 100 0 C.
  • a base such as DIPEA or K 2 CO3
  • a solvent such as MeCN, DMF or EtOH
  • the free amine may also be reacted with an (hetero)aryl aldehyde in presence of a reducing reagent as previously described.
  • M 06 is the group M ou wherein B 1 is CH, M 012 wherein B 1 is CH or M 013 to M 016 , wherein A 1 , A 3 , A 5 and A 7 are HC ⁇ C, L is OSO 2 CF 3 or a halogen atom and E is a protecting group; the other symbols have their above meanings.
  • Compounds of formula I can also be obtained from compound II-l (Scheme 5)
  • Intermediate V-2 may be obtained from derivative II-l and a terminal alkyne derivative V-I.
  • alkyne derivatives V-I are generally obtained from a suitable alcohol III-2 (see Scheme 3) which is converted first into an aldehyde using for example the Moffat-Swern (see Synthesis 1981, 165), or the Dess-Martin periodinane (see J. Am. Chem. Soc. (1991), 113, 7277) oxidation protocols.
  • the aldehyde is converted into the corresponding alkyne using either the Corey-Fuchs protocol (formation of the gem-dibromide then treatment with r ⁇ -BuLi) as described in Tetrahedron Letters (1972), 3769 or using dimethyl-2-oxopropylphosphonate diazo derivative (so called Ohira's reagent, Synth. Com.
  • alkyne V-I and the 4-trifluoromethanesulfonate II-l are coupled under Sonogashira conditions using catalytic amount of a palladium salt, an organic base such as triethylamine and a catalytic amount of a copper derivative (usually copper iodide) in a solvent such a DMF between 2O 0 C to 100 0 C (see Sonogashira, K. in Metal-Catalyzed Reactions, Diedrich, F., Stang, P.
  • the 4-trifluoromethanesulfonate II-l can be replaced by a halogeno (e.g. chloro) derivative II-l.
  • the resulting alkyne V-2 is hydrogenated to the alkane V-3 using catalytic system such as palladium on charcoal or platinum oxide in a solvent like EtOH or EA in presence of hydrogen.
  • catalytic system such as palladium on charcoal or platinum oxide in a solvent like EtOH or EA in presence of hydrogen.
  • Other methods may also be suitable as reviewed by Siegel, S. et al in Comprehensive Organic Synthesis, B. M. Trost, I. Fleming, Eds; Pergamon Press: New York (1991), vol. 8, p. 417-488.
  • the alkane V-3 is further transformed into the compounds V- 4 using procedures previously described.
  • M 07 is the group M 013 , wherein A 1 is RSO 2 CH 2 and E is a protecting group; R may be l-phenyl-lH-tetrazol-5-yl or benzothiazol-2-yl and the other symbols have their above meanings.
  • Compounds of formula I can also be obtained from compound VI-I (Scheme 6).
  • Intermediate VI-3 may be obtained as an (£)-isomer from an aldehyde derivative VI-I and a sulfone VI-2.
  • the sulfone is generated from the corresponding sulphide via an oxidation reaction.
  • a wide range of oxidizing agent may be used to perform such a reaction, such as MCPBA in a solvent such as DCM, oxone ® in a solvent such as a.q. MeOH (see Tetrahedron Letters (1981), 22, 1287), or aq. hydrogen peroxide in presence of ammonium heptamolybdate tetrahydrate in EtOH (see J. Org. Chem.
  • the sulphide is obtained from a suitable alcohol III-2 (Scheme 3) via a Mitsunobu coupling (as reviewed in O. Mitsunobu Synthesis (1981), 1) with l-phenyl-lH-tetrazole-5-thiol in the presence of diethyl azodicarboxylate or DIAD and PPh 3 .
  • the reaction may be performed in a wide range of solvents such as DMF, T ⁇ F or DCM and within a wide range of temperatures (between -78°C and 50 0 C).
  • An alternate route to form the intermediate sulphide requires the activation of the alcohol III-2 as for example a tosylate, a triflate or a mesylate by treatment with tosyl chloride, trifluoromethanesulphonic anhydride or mesyl chloride respectively in the presence of an organic base such as TEA between -40 0 C and 6O 0 C in a dry aprotic solvent like DCM, acetonitrile or T ⁇ F.
  • alcohol ⁇ i-2 reacts with sodium iodide or potassium iodide in acetone at a temperature ranging between O 0 C and 65 0 C, to form the corresponding iodide.
  • the latter serves as an alkylating agent of the l-phenyl-lH-tetrazole-5-thiol.
  • the alkylation reaction is performed in presence of an inorganic base such as KO ⁇ or NaOH in a solvent such as EtOH at a temperature ranging between -20 0 C and 70 0 C.
  • the sulfone VI-2 and the aldehyde VI-I are coupled in presence of a base such as potassium- or lithium-hexamethyldisilazide in a solvent such as 1,2-dimethoxyethane, DMF or toluene as reviewed by Blakemore, P.R in J.Chem.Soc, Perkin Trans. 1 (2002), 2563-2585.
  • the (£)-alkene VI-3 is transformed into the corresponding chiral czs-diol derivative by treatment with AD mixtures in presence of methanesulfonamide in a water/2-methy-2-propanol mixture as described in Chem. Rev. (1994), 94, 2483.
  • the sense of induction relies on the chiral ligand contained in the mixture, either a dihydroquinine-based ligand in AD-mix ⁇ or a dihydroquinidine-based ligand in AD-mix ⁇ .
  • the chiral cis-diol VI-4 is further transformed into the chiral compounds VI-5 using procedures previously described.
  • An alternate route to obtain (£)-alkene VI-3 may be to couple a 4-trifluoromethanesulfonate derivative II-l (Scheme 2) with an organostannane deriving from a terminal alkyne derivative V-I (see Scheme 5). Indeed, the hydrostannation reaction of an alkyne derivative
  • V-I using tributyl tin hydride and a catalytic amount of either a palladium salt or a molybdenum complex generates an E:Z mixture of the vinylstannane intermediate as described in J. Org. Chem. (1990), 55, 1857.
  • the vinylstannane is reacted with a 4- trifluoromethanesulfonate derivative II-l under Stille coupling conditions (as described in J.
  • Typical reaction conditions involve a palladium salt such as tetrakis(triphenylphosphine) palladium or dichloro bis(triphenylphophine) palladium, lithium chloride and a radical inhibitor such as 2,6-dimethyl-4-methyl phenol in a solvent such as DMF or dioxane at a temperature ranging between 0 0 C and 100 0 C, more preferably at a temperature ranging between 20 0 C and 8O 0 C.
  • a solvent such as DMF or dioxane
  • the previously mentioned chiral czs-diol VI-4 may be transformed in the corresponding cyclic carbonate VII-I, by treatment with either phosgene, diphosgene or triphosgene in presence of an organic base such as TEA or pyridine or carbonyldimidazole in an inert solvent such as DCM or THF at a temperature ranging between -78°C and 5O 0 C, more conveniently at a temperature ranging betrween 0°C and 20 0 C.
  • the cyclic carbonate V ⁇ -1 is subsequently transformed to the homobenzylic alcohol VII-2 by hydrogenolysis using catalytic system such as palladium on cha.rcoal in presence of hydrogen in a solvent such as EA.
  • the intermediate VII-2 is further transformed into the compounds VII-3 using procedures previously described.
  • M 08 is the group M 011 wherein B 1 is CH, M° 12 wherein B 1 is CH or M 013 to M 016 , wherein A 1 is HCO(CH 2 ) W , w is 1, 2 or 3 and E is a protecting group; the other symbols have their above meanings.
  • the benzylic alcohol VIII-2 may be obtained by addition of an organometallic derivative of aromatic H-I onto an aldehyde VIII-I.
  • the aldehyde VTII-I is obtained from a suitable alcohol III-2 by a homologation reaction. Oxidation of the alcohol ⁇ i-2 into its corresponding aldehyde may be performed using one of the aforementioned oxidation methods.
  • the resulting aldehyde is further converted to the corresponding alkene using the phosphorane generated from methyltriphenylphosphonium bromide and a base like «-BuLi or potassium tert-buto ⁇ de in a solvent such as THF at a temperature between -80 0 C and 0°C (see Org.
  • the terminal alkene is subsequently transformed into the primary alcohol via an hydroboration reaction using either BH 3 -dimethylsulfide complex, or 9-borabicyclo[3.3.1]nonane (9-BBN) (for a review see Smith, K.; Pelter, A. G. Comprehensive Organic Synthesis, B. M. Trost, I. Fleming, Eds; Pergamon Press: New York (1991), vol. 8, p. 703-731) followed by oxidative workup with aq. NaOH and 30% H 2 O 2 (see also Pelter, A.; Smith, K. G. Comprehensive Organic Synthesis, B.M. Trost, I.
  • an alkyllithium such as H-BuLi
  • a palladium salt an inorganic base such as K2CO3 or Na 2 COs
  • the corresponding alkene may be directly transformed into the aldehyde VI-I by ozonolysis (O 3 stream then quenching with either dimethylsulfide or PPh 3 ) or via a periodic cleavage of the intermediate diol using sodium periodate in aq. acetone.
  • the diol is obtained using a catalytic amount of osmium tetroxide in the presence a co-oxidant such as NMO in aq. solvent such as acetone-water or DCM-water (see Cha, J.K. Chem. Rev. (1995), 95, 1761-1795).
  • R c represents CH 2 OH, COOR e or CONH 2 ;
  • R e represents hydrogen or alkyl
  • R d represents hydrogen or a nitrogen protecting group.
  • Nitrogen protecting groups R d are preferably allyloxycarbonyl, if-butyloxycarbonyl, benzyloxycarbonyl, p-nitrobenzyloxycarbonyl, benzyl or acetyl.
  • the intermediates of formula VI can be converted into the end products of formula I by reaction with the compounds of formula II in analogy to the reaction between the compounds of formulas II and III; any nitrogen protecting group R d is subsequently split off as described above to yield starting compounds of formula IV.
  • the piperidine nitrogen of compound IX-I is protected with a protecting group PG (Cbz or BOC).
  • PG Cbz or BOC
  • the carboxylic acid function is reduced into its corresponding aJcohol by reduction with borane in THF in an organic solvent such as THF or dioxane between -20° and 50 0 C to yield the compound IX-2.
  • the alcohol is further transformed into the corresponding aldehyde IX-3 using Dess-Martin periodinane or Moffat-Swern protocols, protected as a silyl or THP ether using TBDMSCl in presence of an organic base such as TEA or pyridine in a solvent such as DCM or THF, or dihydropyran in an aprotic solvent such as DCM, THF or ether between -40° and +40 0 C, or directly used in coupling with compounds OI-l (see Scheme 3) wherein L 1 is OH or Cl.
  • the 5-methylester function is hydrolysed in pxesence of an alkali hydroxide such as NaOH, LiOH or KOH in a water/THF mixture between 0° and 40 0 C.
  • the resulting acids are subjected to a Curtius degradation in presence of diphenylphosphoryl azide in t-butanol in presence of an organic base such as TEA between 60° artd 140 0 C to give the intermediate t-butyl carbamate followed by acidic treatment with TFA or an inorganic acid such as HCl in an organic solvent such as THF or DCM to liberate the amine IX-5, IX-6 and IX-7.
  • the intermediate aldehyde IX-3 is reacted with dimethyl acetylmeth>dphosphonate, ⁇ -toluenesulfonyl azide and MeOH in presence of an inorganic base such as K 2 CO 3 in a polar solvent such as acetonitrile between 0 and 50 0 C to give the intermediate alkzyne derivative IX-4, which is subsequently subjected to coupling under Sonogashira conditions.
  • Example 1 (2,3-dihydro-[l,4]dioxino[2,3-6]pyridin-6-ylmethyl)- [(l ⁇ ,5 ⁇ ,6 ⁇ )-6-(6-methoxy-[l,5]naphth7ridin-4-yloxymethyI)-bicyclo[3.1.0]lmex-3-yl]- amine:
  • Example 3 -7-fl «oro-6- ⁇ (l ⁇ ,5 ⁇ ,6 ⁇ )-[6-(6-methoxy-[l,5]nap hthyridin-4-yloxymethyl)- bicyclo[3.1.0]hex-3-ylamino]-methyl ⁇ -4H-benzo[l,4]thiazin-3-one:
  • Example 5 6- ⁇ [(l a,5a,6 ⁇ )- 6-(6-methoxy-[l,5]naphthyridin-4-yloxymethyl)- bicyclo [3.1.0] hex-3-ylamino] -methyl ⁇ -4H-benzo [1 ,4] thiazin-3-one :
  • Example 8 (1 a,3 ⁇ ,5a,6 ⁇ )-3-[(3-oxo-3,4-dihydro-2i ⁇ -pyrido [3 ,2-b] [1 ,4]thiazin- 6-ylmethyl)-amino]-bicyclo[3.1.0]hexane-6-carboxylic acid (6-methoxy- [1 ,5] naphthyridin-4-yl)-amide :
  • Example 10 l-(2,3-dihydro-benzo[l,4]dioxin-6-yl)-2-[(l a,5a,6 ⁇ )-6-(6-methoxy- quinazolin-4-yloxymethyl)-3-aza-bicyclo[3.1.0]hex-3-yI]-ethanone:
  • Example 12 r ⁇ c-carbamic acid l-(2,3-dihydro-benzo[l,4]dioxin-6-yl> 2-[(l ⁇ ,5 ⁇ ,6 ⁇ )-6-(6-methoxy-quinazolin-4-yloxymethyl)-3-aza-bicyclo[3.1.0]hex-3-yI]- ethyl ester:
  • Example 13 4- ⁇ (l ⁇ ,5 ⁇ ,6 ⁇ )-3-[2-(2,3-dihydro-benzo[l,4]dioxin-6-yl)-ethyl]-3-a ⁇ a- bicyclo[3.1.0]hex-6-ylmethoxy ⁇ -6-methoxy-quinoline:
  • Example 14 4- ⁇ (l ⁇ ,5 ⁇ ,6 ⁇ )-3-[2-(2,3-dihydro-benzo[l,4]dioxin-6-yl)-ethyl] -3-aza- bicy do [3.1.0] hex-6-ylmethoxy ⁇ -6-methoxy-quinazoline:
  • Example 15 8- ⁇ (l ⁇ ,5 ⁇ ,6 ⁇ )-3-[2-(2,3-dihydro-benzo[l,4]dioxin-6-yl)-ethyl]-3-aza- bicy clo [3.1.0] hex-6-y lmethoxy ⁇ -2-methoxy- [1 ,5] naphthy ridine :
  • Example 16 l-(2,3-dihydro-benzo[l,4]dioxin-6-yl)-2-[(l ⁇ ,5o ⁇ 6 ⁇ )-6-(6-methoxy- [l,5]naplithyridin-4-yloxymethyl)-3-aza-bicyclo[3.1.0]hex-3-yl]-etha.iione;
  • Example 17 / • ⁇ c-l-(2,3-dihydro-benzo[l,4]dioxin-6-yl)-2-[(l ⁇ ,5 ⁇ ,6> ⁇ )-6-(6-methoxy- [l,5]naphthyridin-4-yloxymethyl)-3-aza-bicyclo[3.1.0]hex-3-yI]-etha-iiol:
  • Example 18 r ⁇ c-carbamic acid l-(2,3-dihydro-benzo[l,4]dioxin-6-yI)- 2-[(l «,5 ⁇ ,6c ⁇ )-6-(6-methoxy-[l,5]naphthyridin-4-yIoxymethyl)-3-aza bicyclo[3.1.0]hex- 3-yl]-ethyl ester:
  • Example 19 r «c-(l ⁇ ,5 ⁇ ,6 ⁇ )-4- ⁇ 3-[2-(2,3-dihydro-be ⁇ zo>[l,4]dioxin-6-yl)-ethyl]-3-aza- bicyclo ⁇ .l.OJhex- ⁇ -ylmethoxyJ-quinoIine- ⁇ -carbonitrile:
  • Example 20 3-chIoro-4- ⁇ (l ⁇ ,5 ⁇ ,6 ⁇ )-3-[2-(2,3-dihydro-benzo [l,4]dioxin-6-yl)-ethyl]- 3-aza-bicycIo [3.1.0] hex-6-ylmethoxy ⁇ -6-methoxy-quinoline :
  • Example 22 rac-2- [(I a,5 ⁇ ,6 ⁇ )-6-(3-chlo ro-6-methoxy-quinolin-4-yloxy m «thy l)-3-aza- bicyclo[3.1.0]hex-3-yl]-l-(2,3-dihydro-benzo[l,4]dioxin-6-yl)-ethanol:
  • Example 23 r ⁇ c-carbamic acid 2-[(l «,5a,6a)-6-(3-chloro-6-methoxy-q»iiiiolin-
  • Example 24 6- ⁇ 2-[(l ⁇ ,5 ⁇ ,6 ⁇ )-6-(3-chIoro-6-methoxy-quinolin-4-yloxymetImyI)-3-aza- bicycIo[3.1.0]hex-3-yI]-l-hydroxy-ethyl ⁇ -4J ⁇ -benzo[l,4]oxazin-3-one:
  • Example 25 5- ⁇ (l ⁇ ,5 ⁇ ,6 ⁇ )-3-[2-(2,3-dihydro-benzo[l,4]dioxin-6-yI)-ethyl]-3-aza- bicyclo [3.1.0] hex-6-ylmethoxy ⁇ -3-methoxy-quinoline:
  • Example 26 6- ⁇ (l ⁇ ,5 ⁇ ,6 ⁇ )-2-[6-(3-methoxy-quinolin-5-yloxymethyl)-3-aza- bicycIoIS.l.Ojhex-S-y ⁇ -acetylJ ⁇ H-benzoll j ⁇ oxazin-S-one:
  • Example 27 6- ⁇ l-b ⁇ droxy-2-[(l ⁇ ,5 ⁇ ,6 ⁇ )-6-(3-methoxy-quinolin-5-yloxymethyI)-3-aza- bicyclo[3.1.0]hex-3-yl]-ethyl ⁇ -4H-benzo[l,4]oxazin-3-one:
  • This compound was prepared from intermediate 28. i (0.776 g) and trifluoro-methanesulfonic acid 6-methoxy-[l,5]naphthyridin-4-yl ester (0.92 g) by the method of Example 28, step 28.ii.
  • step 13 the title compound (0.037 g) was obtained from intermediate 30. ⁇ i (0.086 g). MS (ESI, m/z): 480.3 [M+H + ].
  • Example 31 (1 ⁇ ,5 ⁇ ,6 ⁇ )-3-[2-(2,3-dihydro-benzo[l,4]dioxin-6-yl)-ethyl]-3-aza- bicyclo[3.1.0]hexane-6-carboxylic acid (3-methoxy-quinoxalin-5-yl)-amide:
  • step 13 the title compound (0.035 g) was obtained from intermediate 31 -ii (0.078 g). MS (ESI, m/z): 447.6 [M+H + ].
  • Example 32 3- [(I ⁇ ,5 a,6 ⁇ )-2-(2,3-dihydro-benzo [1 ,4] dioxin-6-yl)-2-oxo-ethyl] — 3-aza- bicyclo[3.1.0]hexane-6-carboxylic acid (6-methoxy-[l,5]naphthyridin-4-yl)-am ⁇ de:
  • Example 33 rac-3-[(l ⁇ ,5 ⁇ ,6 ⁇ )-2-(2,3-dihydro-benzo[l,4]dioxin-6-yl)-2-l ⁇ ydroxy-ethyl]- 3-aza-bicyclo[3.1.0]hexane-6-carboxylic acid (6-methoxy- [1 ,5] naphthy rid fn-4-yl)-amide:
  • Example 35 rac-(l ⁇ ,5 ⁇ ,6 ⁇ )-6-( ⁇ 3-[2-hydroxy-2-(6-methoxy-quinolin-4-yl)-ethyl]-3-aza- bicyclo[3.1.0]hex-6-ylamino ⁇ -m ⁇ ethyI)-4 J fir-pyrido[3,2-6][l,4]thiazin-3-one :
  • Example 36 rac- ⁇ ⁇ ,5 ⁇ ,6 ⁇ )-6-( ⁇ 3-[2-hydroxy-2-(6- methoxy-quinolin-4-yl)-ethyl]-3-aza- bicyclo [3.1.0] hex-6-y lamino ⁇ -methyl)-4H-benzo [1 ,4] oxazin-3-one :
  • Example 37 r ⁇ c-(l ⁇ ,5 ⁇ ,6 ⁇ )-2- ⁇ 6-[(2,3-dihydro-[l,4]dioxino[2,3-c]pyridin-7-ylme ⁇ :hyl)- amino]-3-aza-bicycIo[3.1.0]hex-3-yl ⁇ -l-(6-methoxy- «juinoIin-4-yl)-ethanol:
  • Example 38 r ⁇ c-2- ⁇ (l ⁇ ,5 ⁇ ,6 ⁇ )-6-[(2,3-dihydro-beiizo[l,4]dioxin-6-ylmethyI)-ainino]- 3-aza-bicyclo[3.1.0]hex-3-yl ⁇ -l-(6-methoxy-quinolin-4-yl)-ethanol:
  • Example 39 r ⁇ c-2- ⁇ (l « ⁇ 5flr,6 ⁇ )-6-[(2,3-dihydro-benzo[l,4]dlioxiii-6-yImethyl)-amino]- 3-aza-bicycIo[3.1.0]hex-3-yl ⁇ -l-(6-methoxy-[l,5]naphthyrid ⁇ n-4-yI)-ethanol:
  • step 35.iii the title compound (0.055 g) was obtained from intermediate 39.iii (0.059 g) as a yellow gum. MS (ESI, m/z): 449.5 [M+H + ].
  • Example 40 r ⁇ c-6-( ⁇ (l ⁇ ,5 ⁇ ,6 ⁇ )-3-[2-hydroxy-2-(6-methoxy-[l,5]naphthyridin-4-3 r l)- ethyl] -3-aza-bicycIo [3.1.0] hex-6-y lamino ⁇ -methyl)-4//-benzo [1,4] thiazin-3-one :
  • step 35.iii the title compound (0.049 g) was obtained from intermediate 39.iii (0.059 g) as a yellow foam.
  • Example 41 r ⁇ c-2- ⁇ (l a,5a,6 «)-6-[(2,3-dihydro-[l,4]dioxino[2,3-A]pyridin-6-ylmethyl)- amino]-3-aza-bicyclo [3.1.0] hex-3-yl ⁇ -l-(6-methoxy- [1,5] naphthyridin-4-yl)-ethanc»l :
  • the heterogenous mixture was heated at 60 0 C for 30 min.
  • the solids were filtered off and water (20 ml) was added to the filtrate.
  • the volatiles were removed under reduced pressure and the residue was extracted twice with EA (2 x 150 ml).
  • the combined organic layers were washed with brine, dried over Na 2 SO 4 , filtered and concentrated to dryness.
  • the residue was purified by chromatography (EA-Hex 1-1 then 2-1) to afford the title compound (1.6 g) as a beige solid.
  • Example 43 rac-2- ⁇ (l ⁇ ,5 ⁇ ,6 ⁇ )-6-[(2,3-dihydro-[l,4]dioxino[2,3-b]pyridin-6-ylmethyl)- amino]-3-aza-bicyclo[3.1.0]hex-3-yl ⁇ -l-(3-methoxy-quinolin-5-yl)-ethanol:
  • Example 44 r ⁇ c-6-( ⁇ (l ⁇ ,5 ⁇ ,6 ⁇ )-3-[2-hydroxy-2-(3-methoxy-quinolin-5-yl)-et;hyl]-3-aza- bicyclo [3.1.0] hex-6-ylamino ⁇ -methy l)-4H-py r ido [3,2-6] [1 ,4] thiazin-3-one :
  • Example 45 r ⁇ c-6-( ⁇ (l «,5 ⁇ ,6 ⁇ )-3-[2-hydroxy-2-(3-methoxy-quinolin-5-yl)-ethyl]-3-aza- bicyclo [3.1.0] hex-6-yla ⁇ riino ⁇ -methyl)-4H-benzo [1 ,4] thiazin-3-one :
  • the enantiomeric excess was measured by chiral HPLC on Chiralcel OD (detection at 254 nm) using a THF-Hex mixture (3-7). The major enantiomer eluted after 13.0 min and the minor one after 14.1 min (column Chiralcel OD 4.6 x250 mm, 10 ⁇ m; flow 0.8 ml/min; eluent: 95% Hex and 5% EtOH with 0.1% diethanolamine).
  • Example 48 (2JR!-2- ⁇ (l ⁇ ,5 ⁇ ,6Qr)-6-[(2,3-dihydro-benzo[l,4]dioxin-6-ylmethyl)-ainino]- S-aza-bicyclop.l.Olhex-S-ylJ-l-CS-methoxy-quinolin-S-ylJ-ethanol:
  • Example 50 6-methoxy-4- ⁇ 3-[l-(fr ⁇ «s-3-phenyI-a!lyI)-piperidin-3-yI]-propoxy ⁇ - quinoline:
  • Example 52 r ⁇ c-3-[l-(2,3-dihydro-benzo[l,4]dioxin-6-ylmethyl)-piperidin-3-yl]- JV-(6-methoxy-[l,5]naphthyridin-4-yl)-propioiiamide:
  • Example 54 r ⁇ c-iV-(6-methoxy-[l,5]naphthyridin-4-yl)-3- ⁇ l-[2-(thiopheii-2-ylsulfanyl)- ethyl]-piperidin-3-yl ⁇ -propionamide:
  • Example 56 r ⁇ c-iV-(6-metlioxy-[l,5]naphthyridin-4-yl)-3-[l-(3-oxo-3,4-dihydro- 2H-pyrido[3,2-6][l,4]thiazin-6-yImethyl)-piperidin-3-yl]-propionami ⁇ ie:
  • Example 57 /- ⁇ c-3-[l-(2,3-c ⁇ ihydro-[l,4]dioxino[2,3-c]pyridin-7-ylinethyl)-piperidin- 3-y 1] -iV-(6-methoxy- [1 ,5] nap hthy ridin-4-y l)-propionamide :

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EP05784860A 2004-09-24 2005-09-20 Neue bicyclische antibiotika Withdrawn EP1799676A2 (de)

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PCT/EP2005/010154 WO2006032466A2 (en) 2004-09-24 2005-09-20 New bicyclic antibiotics
EP05784860A EP1799676A2 (de) 2004-09-24 2005-09-20 Neue bicyclische antibiotika

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