Circulation active novel substituted 4-hydroxy-benzopyrans

US4647579A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hans-Joachim Kabbe
• Arno Widdig · Odenthal, DE
• Ulrich Niewohner · Wermelskirchen, DE
• Andreas Knorr · Erkrath, DE
• Bernward Garthoff · Hilden, DE
• Stanislav Kazda · Wuppertal, DE

Key dates

• Filing date: Mar 21, 1985
• Grant date: Mar 3, 1987
• Expiry date: Mar 21, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D311/22
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Novel substituted 4-hydroxy-benzopyrans of the formula ##STR1## in which X is a single bond, ##STR2## and the other radicals can have various meanings, or pharmaceutically acceptable addition salts thereof, which are active on the circulation system.