科研之友
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摘要
Phytochemical investigation of the leaves of Pometia pinnata resulted in the isolation of a new triterpenoid saponin (1), together with a known compound, kaemferol 3-O-alpha-L-rhamnopyranoside (2). The structure of 1 was established as 3-O-[alpha-L-arabinofuranosyl-(1 -%26gt; 4)-alpha-L-rhamnopyranosyl-(1 -%26gt; 2)-alpha-L-arabinopyranosyl]-hederagenin. The structure elucidation of the isolated compounds was based primarily on 1D- and 2D-NMR techniques, including H-1 and C-13 NMR spectra, DEPT, and by 2D COSY, HMQC, HMBC and TOCSY experiments.
- 出版日期2012-11
