| abstract |
A compound represented by formula (I):, or its pharmaceutically acceptable salt, wherein a group represented by formula: (II) is a group represented by formula: (III) or (IV); R1 is each independently halogen, hydroxy, cyano or the like; m is 0, 1, 2, 3 or 4; R2 is a hydrogen atom, halogen, cyano, substituted or unsubstituted alkyl or the like; R3a,R3b,R3c andR3d are each independently hydrogen atom, halogen or the like, with the proviso that R3a,R3b,R3c andR3d are not simultaneously hydrogen atom; ring C is represented as follows: (V), (VI), (VII), (VIII), (IX) or (X). X is CH or N; Y is CH or N; R4 is each independently halogen, hydroxy, cyano or the like; p is 0 or 1; q is 0, 1, 2, 3 or 4; R5 is CR5C or N; R6 is CR6C or N; R7 is CR7C or N; R8 is CR8C or N; R9 is CR9C or N; with the proviso that R5,R6,R7,R8 andR9 are not simultaneously N; R5C,R6C,R7C,R8C andR9C are each independently hydrogen atom or the like. |