Phytochemistry p. 325 - 335 (1997)
Update date:2022-08-11
Topics:
Achenbach, Hans
Benirschke, Monika
Torrenegra, Ruben
From the seeds of Tabernaemontana cymosa (= T. psychotrifolia) 17 indole alkaloids and six lignan glacosides were isolated, besides triacylglycerols, 9,12-octadecadienoic acid, lupeol, (+)-lyoniresinol, obtusifoliol, sweroside and a glucoside of 3-O-methylgallic acid. 9-(β-D-Glucopyranosyloxy)- tetrahydroalstonine, (+)-5,5'-dimethoxy-9-O-(β-D- glucopyranosyl)lariciresinol, (-)-2α-O-(β-D-glucopyranosyl)-lyoniresinol and 3-O-(β-D-glucopyranosyl)-5-O-methylgallic acid are described for the first time. Structural determination is based on spectroscopic studies and/or on comparison with authentic compounds. Some of the isolated substances exhibited significant antifungal and/or cytotoxic effects.
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