| abstract |
The present invention provides compounds represented by formula (I) and pharmaceutically acceptable salts and solvates thereof: n nwherein X represents CH or N; Z represents —O—, —NH— or —C(═O)—; R and R′ represent a hydrogen atom, hydroxyl, a halogen atom, optionally substituted alkyl, optionally substituted alkenyl optionally substituted alkoxy, amino, aminocarbonyl, or an optionally substituted heterocyclic group; and A represents an optionally substituted specific carbocyclic or heterocyclic group. The compounds according to the present invention have excellent TGFβ inhibitory activity. |