Acyl derivatives of proscillaridin A

US3987031A · kind A · utility

Assignee

• Boehringer Ingelheim GmbH · DE

Inventors

• Walter Losel
• Herbert Merz · Ingelheim am Rhein, DE
• Wolfgang Hoefke · Wiesbaden, DE
• Werner Traunecker · Münster-Sarmsheim, DE

Key dates

• Filing date: Dec 5, 1973
• Grant date: Oct 19, 1976
• Expiry date: Dec 5, 1993

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07J19/00
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Compounds of the formula ##SPC1## Wherein R.sub.3 is hydrogen, methyl, cyclopropylcarbonyl, benzoyl or thenoyl, and When R.sub.3 is hydrogen, R.sub.2 is phenyl, phenethyl, phenyl-propyl, chloro-propyl, chloro-phenyl, fluoro-phenyl, cycloalkyl of 3 to 8 carbon atoms or (cycloalkyl of 5 to 6 carbon atoms)-methyl, or When R.sub.3 is other than hydrogen, R.sub.2 is methyl, ethyl, phenyl, cyclopropyl or chloropropyl; the compounds are useful as cardiotonics.