Studies on constituents of medicinal plants. XIV. Constituents of Schizandra nigra Max. (I).

Abstract

A new triterpene acid, schizandronic acid was isolated from the wooden part of Schizandra nigra MAX. and the structure of the acid was elucidated to be cis-3-oxo-cycloart-24-ene-26-oic acid (I) by chemical and spectral evidences.