ఇంటర్నేషనల్ జర్నల్ ఆఫ్ రీసెర్చ్ అండ్ డెవలప్‌మెంట్ ఇన్ ఫార్మసీ & లైఫ్ సైన్సెస్

నైరూప్య

EFFICIENT METHOD FOR ENANTIOSELECTIVE SYNTHESIS OF DEXMETHYLPHENIDATE HYDROCHLORIDE (FOCALIN?)

Kartik S. Renalson, Ashok B. Kalambe, Deepa Y. Panhekar

An improved economical and eco friendly process for the enantioselective resolution of methylphenidate free base to give (2R,2’R)-(+)-threomethylphenidate via diastereomeric salt preparation with (+)-di-para-toluyl-D-tartaric acid has been achieved. The racemic resolution performed under mild and neutral conditions having simple unit operation making process feasible for large scale production of dexmethylphenidate hydrochloride