Patent ID: 7235658

Claim:
A compound of formula (I): wherein X is O, CH 2 , S or NH, or the moiety X—R′ is hydrogen; V is CH or N; R 1 is hydrogen, C 1-6 alkyl, C 3-7 cycloalkyl, aryl, arylC 1-6 alkyl, heterocyclyl, heterocyclylC 1-6 alkyl, heteroaryl, or heteroarylC 1-6 alkyl any of which except for hydrogen are optionally substituted; R 2 and R 3 independently represent optionally substituted C 1-6 alkyl, or R 2 and R 3 together with the carbon atom to which they are attached form an optionally substituted C 3-7 cycloalkyl or C 3-7 cycloalkenyl ring, or R 2 and R 3 together with the carbon atom to which they are attached form an optionally substituted 5 to 7-membered heterocyclyl ring containing up to 3 heteroatoms selected from N, O, and S; R 4 and R 5 independently represent hydrogen, C 1-6 alkyl, C 3-7 cycloalkyl, aryl, arylC 1-6 alkyl, heteroaryl, heteroarylC 1-6 alkyl, heterocyclyl, or heterocyclylC 1-6 alkyl, any of which, except for hydrogen, may be optionally substituted, or R 4 and R 5 together with the nitrogen atom to which they are attached form 4- to 8-membered ring; Ar is an aryl or heteroaryl ring either of which are optionally substituted; one of X 1 and X 2 is N and the other is NR 6 , wherein R 6 is hydrogen, C 1-6 alkyl, or arylC 1-6 alkyl; or a pharmaceutically acceptable salt thereof, wherein: alkyl groups, C 3-7 cycloalkyl rings and C 3-7 cycloalkenyl rings are optionally substituted with one or more groups selected from the group consisting of aryl, heteroaryl, heterocyclyl, C 1-6 alkoxy, C 1-6 alkylthio, arylC 1-6 alkoxy, arylC 1-6 alkylthio, amino, mono- or di-C 1-6 alkylamino, cycloalkyl, cycloalkenyl, carboxy and esters thereof, amide, sulphonamido, ureido , guanidino, C 1-6 alkylguanidino, amidino, C 1-6 alkylamidino, C 1-6 acyloxy, azido, hydroxy, hydroxyimino and halogen; and aryl, heterocyclyl and heteroaryl rings are optionally substituted with one to three substituents selected from the group consisting of halogen, C 1-6 alkyl, aryl, aryl C 1-6 alkyl, C 1-6 alkoxy, C 1-6 alkoxy C 1-6 alkyl, halo C 1-6 alkyl, arylC 1-6 alkoxy, hydroxy, nitro, cyano, azido, amino, mono- and di-N-C 1-6 alkylamino, acylamino, arylcarbonylamino, acyloxy, carboxy, carboxy salts, carboxy esters, carbamoyl, mono- and di-N-C 1-6 alkylcarbamoyl, C 1-6 alkoxycarbonyl, aryloxycarbonyl, ureido, guanidino, C 1-6 alkylguanidino, amidino, C 1-6 alkylamidino, sulphonylamino, aminosulphonyl, C 1-6 alkylthio, C 1-6 alkylsulphinyl, C 1-6 alkylsulphonyl, heterocyclyl, heteroaryl, heterocyclyl C 1-6 alkyl, hydroxyimino-C 1-6 alkyl and heteroaryl C 1-6 alkyl.