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Report | Regular issue | Vol 16, No. 2, 1981, pp.257-259
Published online, 1st January, 1970
DOI: 10.3987/R-1981-02-0257
The Origin of the N-Formyl Group in Nature and the Biogenesis of Catharine and Catharinine

Natesan Murugesan* and Maurice Shamma

*Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, U.S.A.

Abstract

The presence of an N-formyl group in an alkaloid often points to an in vivo Baeyer-Villiger oxidative rearrangement of an iminium precursor. Vinblastine (3) is thus shown to be the most likely progenitor for the accompanying alkaloids catharine (1) and catharinine (2) in Catharanthus spp.