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1. (WO2017021904) DACLATASVIR FREE BASE AND PROCESS FOR THE PREPARATION THEREOF

Pub. No.:    WO/2017/021904    International Application No.:    PCT/IB2016/054681
Publication Date: Fri Feb 10 00:59:59 CET 2017 International Filing Date: Thu Aug 04 01:59:59 CEST 2016
IPC: C07K 5/062
Applicants: LAURUS LABS PRIVATE LIMITED
Inventors: SWARGAM, Sathyanarayana
MEDIKONDURI, Sreekanth
SALLA, Rammohan
INDUKURI, Venkata Sunil Kumar
KALIDINDI, Srihari Raju
CHAVA, Satyanarayana
Title: DACLATASVIR FREE BASE AND PROCESS FOR THE PREPARATION THEREOF
Abstract:
The present invention relates to daclatasvir free base, processes for its preparation, a process for its conversion into pharmaceutically acceptable salts of daclatasvir. The present invention also relates to a process for the preparation and purification of daclatasvir dihydrochloride.