Phenanthroindolizidine alkaloids from the stems of Ficus septica

Author(s): Sheng W,Pei-Lin, Tian-Shung W


In addition to six known phenanthroindolizidine alkaloids, eight new alkaloids, namely, ficuseptines B−D (13), 10R,13aR-tylophorine N-oxide (4), 10R,13aR-tylocrebrine N-oxide (5), 10S,13aR-tylocrebrine N-oxide (6), 10S,13aR-isotylocrebrine N-oxide (7), and 10S,13aS-isotylocrebrine N-oxide (8), were isolated from a methanol extract of the stems of Ficus septica. The structures of the new compounds were elucidated by means of spectroscopic data interpretation. Cytotoxicity of some of these alkaloids was assessed in vitro using the HONE-1 and NUGC cell lines.

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