| 摘要 |
<p>An anthranilic acid derivative represented by the general formula (X) [wherein R1 represents hydrogen or a carboxy-protecting group; R2 represents optionally substituted phenyl, a heterocyclic group, etc.; R3 represents optionally substituted phenyl, a monocyclic heterocyclic group, etc.; X1 represents carbonyl, etc.; X2 represents optionally substituted alkylene, a bond, etc.; X3 represents oxygen, a bond, etc.; and X4 represents a group represented by the general formula-X5-X6-or-X6-X5-(wherein X5 means oxygen, a bond, etc.; and X6 means optionally substituted alkylene, a bond, etc.)] or a salt of the derivative. The derivative or salt has an MMP-13 production inhibitory activity and is hence useful as a therapeutic agent for articular rheumatisum, osteoarthritis, cancer, etc.</p> |
