title: First total syntheses of chrestifoline-B and (±)-chrestifoline-C, and improved synthetic routes to bismurrayafoline-A, bismurrayafolinol and chrestifoline-D.
abstract: We describe an efficient synthesis of the methylene-bridged biscarbazole alkaloids bismurrayafoline-A, bismurrayafolinol and chrestifoline B-D using an Ullmann-type coupling at the benzylic position.
authors.affiliation: Department Chemie, Technische Universität Dresden, Bergstrasse 66, 01069 Dresden, Germany. hans-joachim.knoelker@tu-dresden.de.
authors.forename: Carsten
authors.initials: C
authors.lastname: Börger
authors.forename: Arndt W
authors.initials: AW
authors.lastname: Schmidt
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; D002625:Chemistry, Organic / Q000379:methods*; D009579:Nitrobenzoates / Q000737:chemistry
chemical_list: D000470:Alkaloids; D002227:Carbazoles; D009579:Nitrobenzoates; C000596854:chrestifoline-B; C000596855:chrestifoline-C; C000596856:chrestifoline-D; C008629:4-nitrobenzoic acid