The present invention provides an sulfonamide derivative having DPreceptor antagonistic activity and a pharmaceutical composition comprising thesaid compound as an active ingredient, and further a therapeutic agent fortreating allergic diseases. The present invention provides a compound of thegeneral formula (II):(see formula II)wherein the ring A is an aromatic carbocyclic ring etc.； the ring B is anitrogen-containing non-aromatic heterocyclic ring etc.； the ring C is anaromatic carbocyclic ring etc.； R1 is carboxy etc.； R2 is independently ahalogenatom etc.； R3 is optionally substituted alkyloxy etc.； R4 is independently ahalogen atom etc.； R5 is independently optionally substituted alkyl etc.； M issulfonyl etc.； Y is a single bond etc.； L1 is a single bond etc.； L2 is asingle bondetc.； k is 0, 1, 2, 3 or 4； n is 0, 1 or 2； and q is 0, 1, 2 or 3； providedthat a) k isnot 0 when the ring B is a 6-membered nitrogen-containing heterocyclic ringcontaining one or two nitrogen atom(s) and the ring C is a benzene ring, etc.；apharmaceutically acceptable salt or a hydrate thereof.
