title: Pachysandra alkaloids. 8. Structures of pachystermine-A and -B, novel type alkaloids having a beta-lactam ring.
mesh_terms: D000470:Alkaloids / Q000032:analysis*; D055598:Chemical Phenomena; D002621:Chemistry; D002845:Chromatography; D010944:Plants / Q000032:analysis*; D013057:Spectrum Analysis
chemical_list: D000470:Alkaloids