申请人:Boston Biomedical, Inc
公开号:US20170015677A1
公开(公告)日:2017-01-19
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—R
6
; 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; R
1
and R
2
are each independently a hydrogen atom, a halogen atom, or an optionally-substituted C
1-6
alkyl carbonyl group, etc.; R
3
, R
4
and R
5
are each independently a hydrogen atom, a halogen atom, or an optionally-substituted C
1-6
alkyl carbonyl group, etc.; and R
6
is a hydrogen atom or an optionally-substituted C
1-6
alkyl group, etc.].
这项发明提供了由式(1)表示的化合物或其药学上可接受的盐。具体来说,本发明提供了由式(1)表示的化合物或其药学上可接受的盐【其中,A为O、S或N—R6;环G为5-元环或6-元芳香环等,包括1-3个选自O、S和N的杂原子作为成分原子;R1和R2各自独立地是氢原子、卤素原子或一个可选择取代的C1-6烷基羰基基团等;R3、R4和R5各自独立地是氢原子、卤素原子或一个可选择取代的C1-6烷基羰基基团等;R6是一个氢原子或一个可选择取代的C1-6烷基基团等】。