Heterocyclic compound

Abstract

A heterocyclic compound having an RORγt inhibitory activity, which is a compound of formula (I) or a salt thereof is provided. The compound has ring A, which is an optionally substituted cyclic group and is bound to a pyrazole ring though Q. Q is a bond, optionally substituted Calkylene, optionally substituted Calkenylene, or optionally substituted Calkynylene. Ris a substituent. Ring B is a thiazole ring, an isothiazole ring or a dihydrothiazole ring, each of which is optionally further substituted by a substituent in addition to R. Ris an optionally substituted cyclyl-carbonyl-Calkyl group, an optionally substituted aminocarbonyl-Calkyl group, an optionally substituted cyclyl-Calkyl group, an optionally substituted cyclyl-Calkylamino-carbonyl group, an optionally substituted aminocarbonyl-Calkenyl group, an optionally substituted Calkylcarbonylamino-Calkyl group, an optionally substituted cyclyl-aminocarbonyl group, an optionally substituted cyclyl-carbonyl group or an optionally substituted non-aromatic heterocyclic group.