CRYSTALLINE AND AMORPHOUS FORM OF RANOLAZINE AND THE PROCESS FOR MANUFACTURING THEM

摘要

Process for the preparation of novel crystalline and amorphous form of (±)-1-[3-(2-Methoxyphenoxy)-2-hydroxypropyl]-4-[N-(2,6-dimethylphenyl)carbamoylmethyl] piperazine dihydrochloride & a crystalline form of Ranolazine base is disclosed in the present invention which has the formula (I) and is a medicine useful as anti-anginal agent.