Isolation, structure elucidation, and total synthesis of two new Chimonanthus alkaloids, chimonamidine and chimonanthidine

Two new tryptamine-related alkaloids, chimonamidine and chimonanthidine, were isolated from the seeds of Chimonanthus praecox Link. and their structures including absolute configuration were elucidated by spectroscopic analysis and biomimetic total synthesis from tryptamine. (C) 2003 Elsevier Ltd. All rights reserved.