3.beta.-(.alpha.-L-althromethylosyl)-14.beta.-hydroxy-bufa-4,20,22-trieno lide and acylated derivatives thereof

US4021547A · kind A · utility

Assignee

• Boehringer Ingelheim GmbH · DE

Inventors

• Walter Losel
• Werner Traunecker · Münster-Sarmsheim, DE
• Wolfgang Hoefke · Wiesbaden, DE

Key dates

• Filing date: Jan 21, 1976
• Grant date: May 3, 1977
• Expiry date: Jan 21, 1996

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07J19/005
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Compounds of the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are hydrogen or carboxylic acyl, particularly acetyl, benzoyl or p-nitro-benzoyl; the compounds are useful as cardiotonics.