A hydroxamic acid derivative represented by the following general formula (1) having selective MMP inhibitory activity,
,wherein R
1
and R
2
each represents hydrogen atom, lower alkyl group, lower haloalkyl etc., X represents methylene group or NR
3
(R
3
represents hydrogen atom, lower alkyl group, etc.), and R
4
represents C1˜4 lower alkyl group.
由以下通式(1)代表的具有选择性 MMP 抑制活性的羟
肟酸衍
生物、
其中 R
1
和 R
2
分别代表氢原子、低级烷基、低级卤代烷基等,X 代表亚甲基或 NR
3
(R
3
代表氢原子、低级烷基等),以及 R
4
代表 C1˜4 低级烷基。