申请人:Boston Biomedical, Inc.
公开号:US10934309B2
公开(公告)日:2021-03-02
This invention provides a compound represented by formula (1) or a pharmaceutically acceptable salt thereof. Specifically, the present invention provides a compound represented by formula (1) or a pharmaceutically acceptable salt thereof [Therein, A is O, S, or N—R6; ring G is a 5-membered or 6-membered aromatic ring, etc., including 1-3 heteroatoms selected from O, S and N as constituent atoms; R1 and R2 are each independently a hydrogen atom, a halogen atom, or an optionally-substituted C1-6 alkyl carbonyl group, etc.; R3, R4 and R5 are each independently a hydrogen atom, a halogen atom, or an optionally-substituted C1-6 alkyl carbonyl group, etc.; and R6 is a hydrogen atom or an optionally-substituted C1-6 alkyl group, etc.].
本发明提供了一种由式(1)代表的化合物或其药学上可接受的盐。具体地说,本发明提供了一种由式(1)代表的化合物或其药学上可接受的盐[其中,A 是 O、S 或 N-R6;环 G 是 5 元或 6 元芳香环等、其中,A 是 O、S 或 N-R6;环 G 是 5 元或 6 元芳香环等,包括 1-3 个选自 O、S 和 N 的杂原子作为组成原子;R1 和 R2 各自独立地是氢原子、卤素原子或任选取代的 C1-6 烷基羰基等;R3、R4 和 R5 各自独立地是氢原子、卤素原子或任选取代的 C1-6 烷基羰基等;R6 是氢原子或任选取代的 C1-6 烷基等]。