Structures of new cucurbitane-type triterpenes and glycosides, karavilagenins and karavilosides, from the dried fruit of Momordica charantia L. in Sri Lanka |
| |
Authors: | Nakamura Seikou Murakami Toshiyuki Nakamura Junko Kobayashi Hisanori Matsuda Hisashi Yoshikawa Masayuki |
| |
Institution: | Kyoto Pharmaceutical University, Misasagi, Kyoto, Japan. |
| |
Abstract: | Three new cucurbitane-type triterpene called karavilagenins A, B, and C and five new cucurbitane-type triterpene glycosides called karavilosides I, II, III, IV, and V were isolated from the dried fruit of Sri Lanka Momordica charantia L. (Cucurbitaceae) together with two known cucurbitane-type triterpenes, 19(R)-methoxy-5beta,19-epoxycucurbita-6,23-dien-3beta,25-diol and 5,19-epoxycucurbita-6,23-diene-3,25-diol, and nine known cucurbitane-type triterpene glycosides, goyaglycosides-b, -c, and -d, and momordicosides F1, F2, G, I, K, and L. The structures of karavilagenins and karavilosides were elucidated on the basis of chemical and physicochemical evidence. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|