Patent ID: 6911469

Claim:
A sulfonamide compound of the formula (I): R 1 —SO 2 NHCO—A—X—R 2 (I) wherein R 1 is an optionally substituted alkyl, an optionally substituted alkenyl, an optionally substituted alkynyl, an optionally substituted cyclo(lower)alkyl, an optionally substituted aryl or an optionally substituted heterocyclic group; A is an optionally substituted heteropolycyclic group containing as a heteroatom(s) only oxygen; X is an alkylene, an oxa, an oxa(lower)alkylene, a lower alkylene-oxa, a carbonyl, a lower alkenylene, an optionally substituted imino, an optionally N-substituted imino(lower)-alkylene, an optionally N-substituted lower alkyleneimino, a thioxa(lower)alkylene or a lower alkylenethioxa; and R 2 is an optionally substituted aryl, an optionally substituted heterocyclic group or a biphenylyl; or a salt thereof, provided that when X is oxamethylene and A is chromanyl, then R 2 is not quinolyl or substituted quinolyl and provided that when X is oxamethylene, then A is an unsaturated heteropolycyclic group having at least one oxygen atom as a heteroatom, or a saturated heteropolycyclic group having at least 2 oxygen atoms as heteroatoms.