Synthesis of Isovincadine and 16-Epiisovincadine, Analogs of Vincadine and 16-Epivincadine with a New Rearranged Skeleton, from a Vincadifformine Derivative

Synthesis of Isovincadine and 16-Epiisovincadine, Analogs of Vincadine and 16-Epivincadine with a New Rearranged Skeleton, from a Vincadifformine Derivative Synthesis of Vinca Alkaloids and Related Compounds. Part XCIII. Skeletal Rearrangement of Cyclovinblastine Derivatives: Formation of a Novel Bisindole System Alkaloide ausVinca minor L. Vincadin, Minovin und Vincorin Structures and absolute stereochemistry of (-)-echitoveniline, (-)-11-methoxyechitoveniline and (-)-11-methoxyechitovenedine—new indole alkaloids of Studies on Morphine Alkaloids. II. Indolinocodeine. I. A New Skeletal Rearrangement of 14-Bromocodeine 14-efivincamine, a new alkaloid from L. The structure of ervincidine Vincanorin und Vincarein, zwei neue Alkaloide ausVinca minor L. Vincadifformin und Minovin, zwei weitere racemische Alkaloide ausVinca minor L. Vincamine and 14-epi-vincamine indole alkaloids from Ambelania occidentalis