Stable valepotriate compounds and process for their preparation

US4313930A · kind A · utility

Assignee

• Kali-Chemie Pharma GmbH · DE

Inventors

• Martin Wischniewski · Hamburg, DE
• Lutz Feicho · Neustadt, DE
• Werner Althaus · Burgdorf, DE

Key dates

• Filing date: Oct 31, 1979
• Grant date: Feb 2, 1982
• Expiry date: Oct 31, 1999

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K9/1652
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Stable valepotriate compositions are produced by a process wherein impurities are removed from the pharmaceutically active extract of the valerianacea fruits, followed by a mixing with pharmaceutically acceptable sheathing materials and the formation of microspheres therefrom.