Regiospecific process for synthesis of acyclic nucleosides

US6043364A · kind A · utility

Assignee

• Lupin Laboratories Limited · IN

Inventors

• Ashoke Kumar · Mandideep, IN
• Dharmendra Singh · Mumbai, IN
• Mukesh Jagannath Wani · Mandideep, IN
• Narendra Joshi · Jersey City, US
• Pravin Sahadev Thombre · Mandideep, IN
• Ajay Singh Rawat · Jamkhed, IN

Key dates

• Filing date: Jun 12, 1997
• Grant date: Mar 28, 2000
• Expiry date: Jun 12, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D473/16
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

N-7 isomer of the formula ##STR1## is converted into a N-9 isomer of the formula ##STR2## by heating a suspension of the N-7 isomer in an alkylating agent of the formula ##STR3##