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Planta Med. 1989 Jun;55(3):300-2.

Isolation and Structure Elucidation of Seco-neokadsuranic Acid A and 3,4-Seco-(24Z)-lanosta-4(30),8,24-triene-3,26-dioic Acid1.

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1
Institute of Materia Medica, Chinese Academy of Medical Sciences, 1 Xian Nong Tan Street, Beijing 100050, Peoples' Republic of China.

Abstract

Seco-neokadsuranic acid A, the second natural triterpenoid with the unusual 14(13-->12) ABEO-lanostane skeleton was isolated from KADSURA HETEROCLITA together with 3,4-seco-(24 Z)-lanosta-4(30),8,24,triene-3,26-dioic acid. The present paper deals with the isolation and structure elucidation of these two new compounds and the preparation of two new 7-oxo-lanostane triterpenoid derivatives.

PMID:
17262423
DOI:
10.1055/s-2006-962012

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