Synthesis and structure elucidation of open-chained putrescine-bisamides from Aglaia species

The structures of the eight recently described open-chained putrescine bisamide alkaloids secoodorine (), aglaithioduline (), aglaiduline (), aglaidithioduline (), grandiamide B (), grandiamide C (), pyramidatine (), and secopiriferine (), which were isolated from different Aglaia species, have been verified by synthesis. In addition to that, the published structure for hemileptagline had to be revised, and for secoodorine () the absolute configuration could be established.