| Abstract
| - Bioactivity-directed fractionation of a CHCl3−MeOH (1:1) extract prepared from the seeds of Rolliniamucosa led to the isolation of a mixture of eight novel tryptamine amides. Extensive HPLC allowed theisolation of the major component of the mixture, which was characterized as N-lignoceroyltryptamine (6)using a combination of spectroscopic and chemical methods. The minor amides were identified by GC−MS analysis as N-palmitoyltryptamine (1), N-stearoyltryptamine (2), N-arachidoyltryptamine (3),N-behenoyltryptamine (4), N-tricosanoyltryptamine (5), N-pentacosanoyltryptamine (7), and N-cerotoyltryptamine (8). Two lignans (pinoresinol dimethyl ether and magnolin) and six acetogenins [membranacin(9), desacetyluvaricin (10), rolliniastatin 1, bullatacin, squamocin, and motrilin] were also isolated. Thecytotoxicity of membranacin (9) and desacetyluvaricin (10) against six human solid tumor cell lines wasdetermined. The absolute configuration of the former is reported.
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