申请人:Ono Pharmaceutical Co., Ltd.
公开号:US08318729B2
公开(公告)日:2012-11-27
A compound represented by formula (I),
wherein
R1 represents a hydrogen atom, etc.,
R2 and R3 each independently represents a hydrogen atom, optionally oxidized C1-4 alkyl group or optionally protected hydroxyl group, or R2 and R3 taken together represent optionally oxidized C2-5 alkylene group,
R4 represents an optionally oxidized C1-6 alkyl group, etc.,
R5 represents an optionally oxidized C1-6 alkyl group, etc.,
R6 represents an optionally oxidized C1-6 alkyl group, etc.,
m represents 0 or an integer from 1 to 3,
n represents 0 or an integer from 1 to 4, and
i represents 0 or an integer from 1 to 7.
化合物的化学式为(I),其中R1代表氢原子,R2和R3各自独立地代表氢原子、可选的氧化的C1-4烷基或可选的保护羟基,或者R2和R3结合代表可选的氧化的C2-5亚烷基,R4代表可选的氧化的C1-6烷基,R5代表可选的氧化的C1-6烷基,R6代表可选的氧化的C1-6烷基,m代表0或1到3的整数,n代表0或1到4的整数,i代表0或1到7的整数。