Search International and National Patent Collections

1. (WO2017064723) AN IMPROVED PROCESS FOR THE PREPARATION OF ARMODAFINIL

Pub. No.:    WO/2017/064723    International Application No.:    PCT/IN2015/050192
Publication Date: Fri Apr 21 01:59:59 CEST 2017 International Filing Date: Wed Dec 09 00:59:59 CET 2015
IPC: C07C 315/06
Applicants: NATCO PHARMA LTD
Inventors: KONAKANCHI, Durga Prasad
PULA, Subba Rao
PILLI, Rama Krishna
MADDULA, Lakshmana Viswa Venkata Pavan Kumar
ADIBHATLA, Kali Satya Bhujanga Rao
NANNAPANENI, Venkaiah Chowdary
Title: AN IMPROVED PROCESS FOR THE PREPARATION OF ARMODAFINIL
Abstract:
The present invention relates to and an improved process for the preparation of Armodafinil with high purity and high yield. The present invention also related to preparation of Armodafinil polymorphic Form-1 with a particle size of above 200µm by direct crystallization.