Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
Studies on the Constituents of Calliandra anomala (KUNTH) MACBR. I. Structure Elucidation of Two Acylated Triterpenoidal Saponins
竹田 忠紘中村 高敏高島 繁樹矢野 理荻原 幸夫
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1993 年 41 巻 12 号 p. 2132-2137

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Two novel triterpenoidal saponins, called calliandra saponins A and E, were isolated from the branches of Calliandra anomala (KUNTH) MACBR. On the basis of the chemical and physicochemical evidence, their structures were defined as 3-O-α-L-arabinopyranosyl-(1→2)-α-L-arabinopyranosyl-(1→6)-2-acetamido-2-deoxy-β-D-glucopyranosyl echinocystic acid 28-O-{β-D-glucopyranosyl-(1→3)-[β-D-xylopyranosyl-(1→3)-β-D-xylopyranosyl-(1→4)]-α-L-rhamnopyranosyl-(1→2)-[(6S)-2-trans-2, 6-dimethyl-6-O-β-D-xylopyranosyl-2, 7-octadienoyl-(1→6)]-β-D-glucopyranosyl} ester (4) and 3-O-α-L-arabinopyranosyl-(1→2)-α-L-arabinopyranosyl-(1→6)-2-acetamido-2-deoxy-β-D-glucopyranosyl echinocystic acid 28-O-{β-D-glucopyranosyl-(1→3)-[β-D-xylopyranosyl-(1→3)-β-D-xylopyranosyl-(1→4)]-α-L-rhamnopyransoyl-(1→2)-[(6'S)-2'-trans-2', 6'-dimethyl-6'-O-(2-O-(6S)-2-trans-2, 6-dimethyl-6-hydroxy-2, 7-octadienoyl)-β-D-xylopyranosyl-2', 7'-octadienoyl-(1→6)-β-D-glucopyranosyl} ester (5), respectively.

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