A compound of formula (I) Wherein R1, R2 and R3 are the same or different and are each alkyl, -aikyl-aryl or -alkyl-cycloalkyl; or R1-Si-R2 taken together form heterocycloalkyl; R4 is aryl or heteroaryl, either of which is optionally substituted with -Y-R5; R5 is alkyl, cycloalkyl, heterocycloalkyl, aryl or heteroaryl; W is heterocyclylene optionally substituted with alkyl, -aikyl-aryl, -alkyl cycloalkyl, aryl, heteroaryl, -alkyl-heteroaryl or -alkyl-heterocycloalkyl; X is oxygen or sulphur; Y is a bond, -NH-, -0-, -S-, -Si(R6)(R7)-, alkylene, alkenylene, -0-alkyl-, -S-alkyl-, -NH-alkyl- or -Si(R6)(R7)-alkyl-; R6 and R7 are the same or different and are each aikyl; with the proviso that -Si(R1)(R2)(R3) is bound to a ring carbon atom of W; or a pharmaceutically acceptable salt thereof, or a prodrug form that is oxidisable or hydrolysable to form a compound as defined above.
化合物的
化学式为(I),其中R1、R2和R3相同或不同,均为烷基、烷基芳基或烷基环烷基;或者R1-Si-R2结合形成杂环烷基;R4为芳基或杂芳基,其中任意一个可以选配有-Y-R5;R5为烷基、环烷基、杂环烷基、芳基或杂芳基;W为杂环亚基,可以选配有烷基、烷基芳基、烷基环烷基、芳基、杂芳基、烷基杂芳基或烷基杂环烷基取代基;X为氧或
硫;Y为键、-NH-、-O-、-S-、-Si(R6)(R7)-、烷基、烯基、-O-烷基、-S-烷基、-NH-烷基或-Si(R6)(R7)-烷基;R6和R7相同或不同,均为烷基;但-Si(R1)(R2)(R3)必须与W的环碳原子相结合;或其药学上可接受的盐,或者是可氧化或
水解成上述定义的化合物的前药形式。