title: Novel approach to biscarbazole alkaloids via Ullmann coupling--synthesis of murrastifoline-A and bismurrayafoline-A.
abstract: Unprecedented Ullmann couplings of murrayafoline-A with either 6-bromo- or 4-bromocarbazole derivatives provide highly efficient synthetic routes to the biscarbazole alkaloids murrastifoline-A (6 steps, 66% overall yield) and bismurrayafoline-A (6 steps, 28% overall yield).
authors.affiliation: Department Chemie, Technische Universität Dresden, Bergstrasse 66, 01069 Dresden, Germany.
authors.forename: Carsten
authors.initials: C
authors.lastname: Börger
authors.forename: Olga
authors.initials: O
authors.lastname: Kataeva
authors.forename: Hans-Joachim
authors.initials: HJ
authors.lastname: Knölker
mesh_terms: D000470:Alkaloids / Q000138:chemical synthesis* / Q000737:chemistry; D002227:Carbazoles / Q000138:chemical synthesis* / Q000737:chemistry; D008958:Models, Molecular; D015394:Molecular Structure; D013237:Stereoisomerism
chemical_list: D000470:Alkaloids; D002227:Carbazoles; C577880:murrastifoline-A; C443728:murrayafoline A