A compound of formula (1): wherein A is -CH2CH2-, -CH=CH- or -C=-C-; B is aryl or heteroaryl; D is optionally present and is -C(O)-, -C(O)NH-, -C(O)CH2- or -C(O)CH2- O-; E is optionally present and is alkylene or heteroarylene; R1 is hydrogen or alkyl; R2 is hydrogen, alkyl, aryl, cycloalkyl, heteroaryl or heterocycloalkyl; R3 and R4 are the same or different and are each hydrogen, alkyl or cycloalkyl; and each R5 is the same or different and is alkyl, -alkyl-aryl or -alkyl-cycloalkyl, or R5-Si-R5 taken together form heterocycloalkyl; or a pharmaceutically acceptable salt thereof.
化合物的结构式(1):其中A为- -,-CH=CH-或-C=-C-;B为芳基或杂环芳基;D为可选,且为-C(O)-,-C(O)NH-,-C(O)
CH2-或-C(O) -O-;E为可选,且为烷基或杂环芳基;R1为氢或烷基;R2为氢、烷基、芳基、环烷基、杂环芳基或杂环环烷基;R3和R4相同或不同,分别为氢、烷基或环烷基;每个R5相同或不同,为烷基,-烷基芳基或-烷基环烷基,或R5-Si-R5一起形成杂环环烷基;或其药学上可接受的盐。