title: Synthesis and determination of absolute configuration of the bicyclic guanidine core of batzelladine A.
abstract: [reaction: see text] The synthesis of a selectively protected form of the bicyclic guanidine fragment of batzelladine A from L-aspartic acid is reported, thereby establishing the absolute configuration of the bicyclic guanidine ring system within the natural product.
authors.affiliation: Department of Chemistry, University of Illinois, Urbana, Illinois 61801, USA.
authors.forename: S G
authors.initials: SG
authors.lastname: Duron
authors.forename: D Y
authors.initials: DY
authors.lastname: Gin
mesh_terms: D000470:Alkaloids / Q000138:chemical synthesis* / Q000737:chemistry; D000818:Animals; D019380:Anti-HIV Agents / Q000138:chemical synthesis / Q000737:chemistry; D006146:Guanidines / Q000138:chemical synthesis* / Q000737:chemistry; D010649:Phenylalanine / Q000031:analogs & derivatives / Q000138:chemical synthesis*; D011161:Porifera / Q000737:chemistry; D013237:Stereoisomerism
chemical_list: C438978:4-(sulfono(difluoromethyl)phenylalanine); D000470:Alkaloids; D019380:Anti-HIV Agents; D006146:Guanidines; D010649:Phenylalanine