Alkaloids from Cissampelos tropaeolifolia d.c.

The phytochemical study of Cissampelos tropaeolifolia aerial parts led to the isolation and structural characterization by spectroscopic and spectrometric methods of two morfinan-7-one alkaolid named 2 O-methylflavinantine and Fissistigine D. The following known compounds were also identified: caffeic acid, caffeic acid methyl ester, caffeic acid ethyl ester, and p-coumaric acid. The structures of isolated compounds were elucidated by 1D- and 2D-NMR Spectroscopy (1H, 13C, 13C DEPT, DQF-COSY, HSQC, HMBC, ROESY ) and confirmed by mass spectrometry studies