A compound of Formula I
1
or a pharmaceutically acceptable salt thereof, or a tautomer thereof, wherein G
1
, G
2
, and B are as defined in the application, are selective inhibitors of MMP-13. The compounds are useful for treating diseases mediated by MMP-13, including cancer and arthritis.
Formula I1的化合物或其药用可接受的盐,或其互变异构体,其中G1、G2和B如申请中所定义,是MMP-13的选择性
抑制剂。这些化合物可用于治疗由MMP-13介导的疾病,包括癌症和关节炎。