From the leaves of Ancistrocladus cochinchinensis, besides the already
known ancistrocladinine, the new naturally occurring alkaloids, 6-O-m
ethylhamateine, hamatinine, 6-O-methylhamatinine, 6-O-demethyl-7-epi-a
ncistrobrevine D, 7-epi-ancistrobrevine D and 6-O-demethyl-8-O-methyl-
7-epi-ancistrobrevine D have been isolated and their structures elucid
ated from spectroscopic data and chemical degradation. (C) Elsevier Sc
ience Ltd.