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Paper | Regular issue | Vol 71, No. 2, 2007, pp.331-341
Published online, 15th December, 2006
DOI: 10.3987/COM-06-10934
Structure of New Cucurbitane-Type Triterpenes and Glycosides, Karavilagenins D and E, and Karavilosides VI, VII, VIII, IX, X, and IX, from the Fruit of Momordica charantia

Hisashi Matsuda, Seikou Nakamura, Toshiyuki Murakami, and Masayuki Yoshikawa*

*Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8412, Japan

Abstract

Two new cucurbitane-type triterpenes, karavilagenins D and E, and six new cucurbitane-type triterpene glycosides, karavilosides VI, VII, VIII, IX, X, and XI, were isolated from the fruit of Momordica charantia L. (Cucurbitaceae) cultivated in Sri Lanka. Their structures were elucidated on the basis of chemical and physicochemical evidence.