Derivatives of 3.beta.-(4'-oxo-.alpha.-L-rhamnosyl)-14.beta.-hydroxy-bufa-4,20,22-trien olide

US3981992A · kind A · utility

Assignee

• Boehringer Ingelheim GmbH · DE

Inventors

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

Key dates

• Filing date: Jul 30, 1975
• Grant date: Sep 21, 1976
• Expiry date: Jul 30, 1995

Classification

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

Abstract

Compounds of the formula ##SPC1## Wherein PA1 R is ##SPC2## PA1 R.sub.1 is hydrogen or alkoxy of 1 to 4 carbon atoms, and PA1 R.sub.2 is alkoxy of 1 to 4 carbon atoms, or PA1 R.sub.1 and R.sub.2 together are oxygen; The compounds are useful as cardiotonics.