Benzofurane derivatives

US6531503B1 · kind B1 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Andreas Bathe · Darmstadt, DE
• Bernd Helfert · Ober-Ramstadt, DE
• Henning Bottcher · Darmstadt, DE

Key dates

• Filing date: Jan 9, 2002
• Grant date: Mar 11, 2003
• Expiry date: Jan 9, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/55
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Benzofurane derivatives of formula (I), wherein R and R′ have the meanings given in claim no. (1), and salts thereof are suitable for use as intermediate products in the synthesis of medicaments.