| abstract |
Formula (1) [Wherein, ring A represents a 5-membered heterocyclic ring containing any one of O, N or S which may be substituted with R 4 . R 1 represents aryl, a heterocyclic group, or a heterocyclic group-substituted carbonyl. R 2 represents a hydrogen atom, a halogen atom, carboxy, amino, alkyl, alkoxycarbonyl, alkenyl, cycloalkyl or the like. R 3 represents aryl, a heterocyclic group or alkyl. R 4 represents a hydrogen atom or alkyl. Each substituent may be substituted. ] Or a pharmacologically acceptable salt thereof as an active ingredient is described. |