Method for preparing 3 - (4 - 2 - (n-methyl-n - (2-pyridyl) amino) ethoxy benzyl} - 2.4 - Thiazolidinedione, or one of its forms tautomericas or its Salts

摘要

A procedure for the preparation of 5 - [4 - [2 - (n-methyl-n - (2-pyridyl) amino) ethoxy] benzylidene] - 2.4 - Thiazolidinedione, or one of its forms tautomeras, or of one of its sussales or solvates,Characterized in that it comprises a reducing Compound whose Catalytic Reduction reaction is performed using a hydrogen pressure exceeding 1.4 kg / cm2 (20 psi); and then, if desired,Form a pharmaceutically acceptable Salt or solvate and a pharmaceutically aceptabledel Compound of formula I: where A1 is 2 - piridilo; r1 is Methyl; and N is 1 and A2 is P - phenylene,For prophylaxis and / or treatment of Type II dediabetes and hyperglycemia.