Abstract
A new triterpene saponin, shimadoside A, has been isolated from Kalimeris shimadae and its structure deduced as 3-O-β- d-glucopyranosiduronic acid-3β,16α-dihydroxyolean-12-en-28-oic acid-28-O-β- d-xylopyranosyl -(1 → 3)-β- d-xylopyranosyl -(1 → 4)-α- l-rhamnopyranosyl -(1 → 2)-β- d- xylopyranoside by means of spectral data, especially NMR, including COSY, HMQC, HOHAHA and ROESY techniques, and chemical degradation. Published by Elsevier Science Ltd
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