申请人:WAKUNAGA PHARMACEUTICAL CO., LTD.
公开号:US20190276407A1
公开(公告)日:2019-09-12
A pyridonecarboxylic acid derivative or a salt thereof is represented by Formula (1), where R
1
is hydrogen, a halogen atom, a lower alkyl group, or an amino group; R
2
is —NH—R
6
, where R
6
is hydrogen, a lower alkyl group, an amino lower alkyl group, or the like; —O—R
7
, where R
7
is hydrogen, a lower alkyl group, or the like; —(CH
2
)
m
—R
8
, where R
8
is an amino group or the like, m is 1, 2, 3 or 4; or a cyclic amino group of Formula (2), where Y represents NH or C—R
9a
R
9b
, where R
9a
and R
9b
are each independently hydrogen, a lower alkyl group, an amino group, a lower alkyl amino group, or the like; n and p are 1 or 2; R
3
is hydrogen, a halogen atom, a lower alkyl group, or the like; R
4
is hydrogen or a carboxyl group-protecting group; and R
5
is hydrogen or a hydroxyl group-protecting group.
化合物或其盐可由以下式(1)表示,其中R1是氢、卤素原子、低烷基或氨基;R2是—NH—R6,其中R6是氢、低烷基、氨基低烷基或类似物;—O—R7,其中R7是氢、低烷基或类似物;—(CH2)m—R8,其中R8是氨基或类似物,m为1、2、3或4;或由以下式(2)的环状氨基团表示,其中Y代表NH或C—R9aR9b,其中R9a和R9b各自独立地是氢、低烷基、氨基、低烷基氨基或类似物;n和p为1或2;R3是氢、卤素原子、低烷基或类似物;R4是氢或羧基保护基团;R5是氢或羟基保护基团。