Structural studies on some saponins from Lecaniodiscus cupanioides |
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Authors: | Rosalba Encarnación Lennart Kenne Gunnar Samuelsson Finn Sandberg |
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Institution: | 1. Department of Organic Chemistry, Arrhenius Laboratory, University of Stockholm. S-106 91 Stockholm, Sweden |
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Abstract: | Four triterpenoid saponins isolated from the stem bark of Lecaniodiscus cupanioides and denoted S-2,S-3,S-4 and S-5, were identified as follows. S-2:3-O-α-l-arabinopyranosyl-(1→3)-α-l-rhamnopyranosyl-(1→2)-α-l-arabinopyranosyl]-hederagenin; S-3:3-O-α-d-xylopyranosyl-(1→3)-α-l-rhamnopyranosyl-(1→2)-α-l-arabino-pyranosyl ]-hederagenin; S-4:3-O- α-l-arabinopyranosyl-(1→3)-α-l-rhamnopyranosyl-(1→ 2)-α-l-arabinopyranosyl]-hederagenin; S-5:3-O- α-l-rhamnopyranosyl-(1→2)-α-l-arabinopyranosyl ]-hederagenin. Of these, S-2 and S-4 are new substances. |
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Keywords: | Sapindaceae structural determination hederagenin glycosides |
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