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Synthesis of (+)-Vitepyrroloid A and (+)-Vitepyrroloid B by Late-Stage Ni-Catalyzed C(sp2)–C(sp3) Cross-Electrophile Coupling

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posted on 18.05.2018, 00:00 by Martina Menger, Dieter Lentz, Mathias Christmann
A concise and scalable five-step synthesis of vitepyrroloids A and B, two cytotoxic labdane diterpenoid alkaloids from Vitex trifolia, is reported. The presented approach features a Ni-catalyzed cross-electrophile coupling between a (+)-sclareolide-derived alkyl iodide and 3-bromo-2-cyanopyrrole.