| Literature DB >> 1368412 |
S K Nigam1, X C Li, D Z Wang, G Misra, C R Yang.
Abstract
Two new triterpenoidal saponins, butyrosides A and B, were isolated from the seeds of Madhuca butyracea, along with two known saponins, Mi-saponin A and 16 alpha-hydroxy Mi-saponin A. On the basis of chemical and spectroscopic evidence, the structures of butyrosides A and B were established to be 3-O-beta-D-glucopyranosyl protobassic acid 28-O-beta-D-apiofuranosyl(1----3)-beta-D-xylopyranosyl (----4)-alpha-L-rhamnopyranosyl(1----2)-alpha-L-arabinopyranoside and 3-O-beta-D-glucopyranosyl 16 alpha-hydroxy protobassic acid 28-O-beta-D-apiofuranosyl(1----3)-beta-D-xylopyranosyl (1----4)-alpha-L-rhamnopyranosyl(1----2)-alpha-L-arabinopyranoside , respectively.Entities:
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Year: 1992 PMID： 1368412 DOI： 10.1016/0031-9422(92)83468-e
Source DB: PubMed Journal: Phytochemistry ISSN： 0031-9422 Impact factor: 4.072