Two new naphthylisoquinoline alkaloids from stems and leaves of Ancistrocladus tectorius
Chun-Ping Tang1, Zhen-Qiang Xin, Xi-Qiang Li
1Natural Products Chemistry Department, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, P.R. China.
Abstract:
Two new alkaloids, 4'-O-demethylhamatine (1) and ancistrotectoriline C (2), were isolated from the stems and leaves of Ancistrocladus tectorius. These two compounds represent one 5,1'-coupled and one 7,6'-coupled naphthylisoquinoline alkaloid, respectively. Their structures were elucidated by 1D- and 2D-NMR spectra and other spectroscopic studies.
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