Process for producing (S)-3-[(1-dimethylamino)ethyl] phenyl-N-ethyl-N-methyl-carbamate via novel intermediates

US8420846B2 · kind B2 · utility

Assignee

• Jubilant Life Sciences Limited · IN

Inventors

• Shailendra Kumar Dubey · Noida, IN
• Vikas Bansal · Sidhauli, IN
• Kamaljeet Pannu · Sidhauli, IN
• Sushil Kumar Dubey · Noida, IN

Key dates

• Filing date: Aug 25, 2009
• Grant date: Apr 16, 2013
• Expiry date: Dec 19, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07B2200/07
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Disclosed herein are novel intermediates and process for large scale production of (S)-3-[(1-dimethylamino)ethyl]phenyl-N-ethyl-N-methyl-carbamate (rivastigmine) or its pharmaceutically acceptable salts employing the novel intermediates. Further provided are methods for producing the novel intermediates thereof.