Patent ID: 6897199
Filing Date: 2005-05-24
Classification: A61P,C07D

Abstract:
1. A pharmaceutically acceptable salt of the formula (I) its tautomeric forms, its stereoisomers, its polymorphs, or is solvates wherein R 1 and R 2 are the same or different and independently represent hydrogen, halogen atom, hydroxy, nitro, cyano or lower alkyl group; X represents a heteroatom selected from oxygen or sulfur; R 3 represents hydrogen or lower alkyl group; n is an integer ranging from 1-4; M represents a counter ion or a moiety which forms a pharmaceutically acceptable salt; wherein M is selected from glucamine, -methyl glucamine, N-octyl glucamine, dicyclohexylamine, phenyl ethylamine, tris(hydroxymethyl)amino methane (tromethamine), phenylalaninol, mefformin, aminoguanidine, aminoguanidine hydrogen carbonate imidazole, piperazine, dimethyl piperazine, pyrrolidine, benzylamine, phenyl glycine methyl ester, phenylalanine benzyl ester, t-butyl amine or morpholine; and p is an integer ranging from 1 to 2.