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The Structure of Cossonidine:  A Novel Diterpenoid Alkaloid

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journal contribution
posted on 22.02.1996, 00:00 by Matias Reina, Jose A. Gavín, Alberto Madinaveitia, Rafael D. Acosta, Gabriel de la Fuente
A new diterpenoid alkaloid cossonidine (1) has been isolated from Delphinium cossonianum and Delphinium cadiopetalum. The structure of cossonidine was determined by spectroscopic methods, including 1H COSY, HMQC, HMBC, and ROESY NMR experiments, and chemical transformations. The NMR data of kobusine (5) and sanyonamine (6) are also presented.