Patent ID: 7786142

Claim:
A heterocyclic compound of the general formula (I) its tautomeric forms, stereoisomers, and their pharmaceutically acceptable salts; wherein B represents a substituted or unsubstituted group selected from and R 4 represents hydrogen, an alkyl or benzyl, wherein Z represents —CH 2 , —C═O, wherein - - - represents an optional bond, and R represents CH 2 , CH 3 or NH, wherein n is an integer from 0 to 1, wherein when B is formulae (I), (II), (IV) or (V), then A represents hydrogen, alkoxy groups selected from linear or branched (C 1 -C 4 ) alkoxy groups; or substituted or unsubstituted groups selected from aryl groups, heteroaryl groups, heterocyclyl groups, and cycloalkyl groups, wherein when B is formula (III), then A represents substituted or unsubstituted groups selected from aryl groups, heteroaryl groups and cycloalkyl groups; wherein m is an integer from 0 to 1, wherein when A includes a cyclic ring, A represents a substituted or unsubstituted 5 to 10 membered ring system, and the rings are monocyclic or bicyclic aromatic, optionally containing 1 to 4 hetero atoms selected from O, S and N, and the ring A is optionally substituted with halogens, hydroxy, nitro, cyano, azido, nitroso, amino, amidino, hydrazine, formyl, alkyl groups, aryl, cycloalkyl, alkoxy groups, aryloxy groups, aralkyl, aralkoxy, acyl, acyloxyacyl, carboalkoxy, carboxyalkyl, carboxamido, aminocarbonyl, carbonyl, alkylenedioxy, heterocyclyl, heteroaryl groups, heteroaralkyl, heteroaryloxy, heteroaralkoxy, monoalkylamino, dialkylamino, acylamino, alkoxycarbonyl, aryloxycarbonyl, alkylsulfonyl, arylsulfonyl, alkylsulfinyl, arylsulfinyl, alkylthio, arylthio, sulfanyl, sulfinyl, sulfonyl, sulfamoyl, thiol, alkoxyalkyl groups, or carboxylic acids and its derivatives, and wherein the substituents of A are optionally further substituted by groups comprising nitro or halogens, provided that when n is 0, A is other than aryl or cycloalkyl.