Patent ID: 7700637

Claim:
A compound of the formula wherein R 1 is hydrogen, optionally substituted alkyl, aryl, heteroaryl, aralkyl or cycloalkyl; R 2 and R 3 are independently hydrogen, halogen, hydroxy, cyano, nitro, trifluoromethyl, optionally substituted alkyl, aryl, heteroaryl, aralkyl, heteroaralkyl, alkoxy, aryloxy, aralkoxy or heteroaralkoxy; or R 2 and R 3 combined together with the carbon atoms they are attached to form an optionally substituted fused 5- to 6-membered aromatic or heteroaromatic ring provided that R 2 and R 3 are attached to carbon atoms adjacent to each other; R and R′ are independently hydrogen, halogen, optionally substituted alkyl, alkoxy, aralkyl or heteroaralkyl; or R and R′ combined together with the carbon atoms to which they are attached form an optionally substituted fused 5- to 6-membered aromatic or heteroaromatic ring provided that R and R′ are attached to carbon atoms adjacent to each other; or X is —Z—(CH 2 ) p -Q-W in which Z is O or S; p is an integer from 1 to 8; Q is a bond or Q is —O(CH 2 ) r — in which r is zero W is cycloalkyl, aryl or heterocyclyl; A-B is —NH—S(O) 2 —; or a pharmaceutically acceptable salt thereof.