AN IMPROVED PROCESS FOR THE PREPARATION OF INTERMEDIATE COMPUNDS USEFUL FOR THE PREPARATION OF CINACALCET

摘要

The present invention provides an improved process for the, preparation of 3-[3-(trifluoromethyl)phenyl]-2-propen-l-ol (IVb), and 3-[3-(trifluoromethyl)phenyl]-2-propenal (Ilia), The compounds of Formulae Ilia and IVb are key precursors in the preparation of Calcimimetic agent, Cinacalcet hydrochloride of Formula I.