Patent ID: 7491829
Filing Date: 2009-02-17
Classification: A61P,C07D

Abstract:
1. A compound selected from Formulas Ia and Ib: and stereoisomers, tautomers and pharmaceutically acceptable salts thereof, wherein: the A-ring is a 5 or 6 membered carbocyclic ring, wherein said carbocyclic ring is optionally substituted with one or more groups independently selected from F, Cl, Br, I, —C(═Y)R X is a C R R or R R R or R R R Y is independently O, S, NR protecting group is selected from trialkylsilyl, dialkylphenylsilyl, benzoate, benzyl, benzyloxymethyl, methyl, methoxymethyl, triarylmethyl, phthalimido, t-butoxycarbonyl (BOC), benzyloxycarbonyl (CBz), 9-fluorenylmethylenoxycarbonyl (Fmoc), and tetrahydropyranyl.