Tannins and related polyphenols of melastomataceous plants. VIII. Nobotanins L, M and N, trimeric hydrolyzable tannins from Tibouchina semidecandra.
نویسندگان
چکیده
Three hydrolyzable tannins, nobotannins L, M and N, were isolated from the water-soluble portion of the leaf extract of Tibouchina semidecandra, and their trimeric structures were elucidated from spectral and chemical evidence. Nobotanins L and N exist as equilibrium mixtures of four anomers due to the presence of two unacylated anomeric centers.
منابع مشابه
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ورودعنوان ژورنال:
- Chemical & pharmaceutical bulletin
دوره 47 6 شماره
صفحات -
تاریخ انتشار 1999