Hydroxymethylfurazancarboxylic acid derivatives

US5486531A · kind A · utility

Assignee

• Cassella Aktiengesellschaft · DE

Inventors

• Karl Schonafinger · Alzenau, DE
• Helmut Bohn · Schöneck, DE

Key dates

• Filing date: Mar 7, 1994
• Grant date: Jan 23, 1996
• Expiry date: Mar 7, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D271/08
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The present invention relates to hydroxymethylfurazancarboxylic acid derivatives of the general formula I ##STR1## in which one of the radicals R.sup.1 and R.sup.2 represents hydroxymethyl and the other represents ##STR2## where X represents NR.sup.3 R.sup.4, OH or OR.sup.7, and R.sup.3, R.sup.4 and R.sup.7 are defined as indicated in claim 1, to processes for their preparation and to their use.