Fused bicyclic amide compounds and medicinal use thereof

The present invention provides a compound represented by the formula (I) wherein ring A is benzene, cyclohexane, pyridine, piperidine or a derivative thereof, imidazole or a derivative thereof and the like, ring B is benzene, cyclohexane, pyrrole or a derivative thereof, furan, thiophene and the like, R , R and R are each hydrogen, alkyl, halogen, hydroxyl group, alkoxy and the like, W is hydrogen, alkyl or hydroxycarbonylalkyl, X is halogen, cyano, nitro and the like, X' is hydrogen, halogen and the like, and Y is alkyl, hydroxyalkyl, hydroxycarbonylalkyl, aminoalkyl and the like, a salt thereof, and a pharmaceutical agent containing the compound. The compound of the present invention shows a superior inhibitory effect on the proliferation of activated lymphocyte and is useful as an agent for the prophylaxis or treatment of various autoimmune diseases.