| 摘要 |
Compounds of formula (I): wherein X is O, CH2, S or NH, or the moiety X-R<1 >is hydrogen; Y1 and Y2 independently represent CH or N; R<1 >is hydrogen, C1-6alkyl, C3-7cycloalkyl, aryl, arylC1-6alkyl, heterocyclyl, heterocyclylC1-6alkyl, heteroaryl, or heteroarylC1-6 alkyl, any of which except hydrogen may be optionally substituted; R<2 >and R<3 >independently represent hydrogen, C1-6alkyl, C3-7cycloalkyl, aryl, arylC1-6alkyl, heteroaryl, heteroarylC1-6alkyl, heterocyclyl, or heterocyclylC1-6alkyl, or R<2 >and R<3 >together with the nitrogen atom to which they are attached form a 4- to 10-membered monocyclic or bicyclic ring; Ar is a group of the formula a) or b), wherein A represents a fused 5- to 7-membered ring optionally containing up to two heteroatoms selected from O, S and NR<5>, wherein R<5 >is hydrogen or C1-6alkyl, which ring is optionally substituted by up to 2 substituents selected from halogen, C1-6alkyl, hydroxy, C1-6alkoxy or keto; R<a >and R<4 >are independently selected from hydrogen, halogen, C1-6alkyl, aryl, arylC1-6alkyl, C1-6alkoxy, C1-6alkoxyC1-6alkyl, haloC1-6alkyl, arylC1-6alkoxy, hydroxy, nitro, cyano, azido, amino, mono- and di-N-)C1-6alkylamino, acylamino, arylcarbonylamino, acyloxy, carboxy, carboxy salts, carboxy esters, carbamoyl, mono- and di-N-C1-6alkylcarbamoyl, C1-6alkoxycarbonyl, aryloxycarbonyl, ureido, guanidino, C1-6alkylguanidino, amidino, C1-6alkylamidino, sulphonylamino, aminosulphonyl, C1-6alkylthio, C1-6alkyl sulphinyl or C1-6alkylsulphonyl; and one of X1 and X2 is N and the other is NR<6>, wherein R<6 >is hydrogen, C1-6alkyl, or arylC1-6alkyl; or pharmaceutically acceptable salts thereof.
|
