| abstract |
The present invention relates to a novel compound. A compound represented by the following formula (1), its pharmaceutically acceptable salt or its prodrug, wherein Ring A and Ring B are: (1) Ring A is an unsaturated monocyclic heterocyclic ring that can be substituted as required , and Ring B is an optionally substituted unsaturated monocyclic heterocyclic ring, an optionally substituted unsaturated condensed heterobicyclic ring or an optionally substituted benzene ring; (2) Ring A is an optionally substituted A substituted benzene ring, and Ring B is an optionally substituted unsaturated monocyclic heterocyclic ring or an optionally substituted unsaturated fused heterobicyclic ring, or (3) Ring A is an optionally substituted unsaturated Fused and heterobicyclic, and ring B is independently an optionally substituted unsaturated monocyclic heterocyclic ring, an optionally substituted unsaturated fused heterobicyclic ring or an optionally substituted benzene ring; X is a carbon atom Or a nitrogen atom; Y is -(CH 2 ) n -(n represents 1 or 2). |