Benzofuran derivatives and their pharmaceutical use

US4411910A · kind A · utility

Assignee

• SCHERING CORPORATION · US

Inventors

• Eberhard Schroeder
• Manfred Lehman · Berlin, DE
• Clemens Rufer

Key dates

• Filing date: Mar 11, 1982
• Grant date: Oct 25, 1983
• Expiry date: Mar 11, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D307/88
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Benzofuran derivatives of the formula ##STR1## wherein V is hydrogen or acetyl, PA1 X is oxo or two hydrogen atoms, PA1 R.sub.1 and R.sub.2 each independently is hydrogen, fluorine, or chlorine, and PA1 --A--B-- is --O--CH.sub.2 -- or --CH.sub.2 --O--, PA1 possess valuable pharmacological properties.