Delphinium biternatum

Revisions Based on 13C N.M.R. Analysis.—The revision of the structures of five C19 diterpenoid alkaloids on the basis of the 13C n.m.r. spectral data has been reported.8,9 Yunusov and co-workers,10 relying predominantly on mass-spectral data, had proposed structure (43) for acomonine (C2jH41N07), isolated from the roots of Aconitum monticola. Based partially on chemical correlations with acomonine, they later assigned structures to iliensine (44) (Cj NO,)11 and 14-dehydroiliensine (45),12 isolated from Delphinium biternatum. These were the first reported C19 diterpenoid alkaloids lacking an oxygen function at C-l. 

Delphinium biternatum Correlated with lycoctonine Refs. 126, 127... 

Delphinium biternatum Correlated with acomonine Refs. 124, 125... 

Alkaloids of Delphinium biternatum Huth. 14-Benzoyl-browniine, 14-Benzoyliliensine, 14-Dehydro-iliensine, and Delbiterine... 

The structures of a number of new C19 alkaloids that have been obtained from various Aconitum and Delphinium species have been reported. These include ranaconitine from A. ranunculaefolium, septentrioine and septentriodine from A. septentrionale, delbiterine from D. biternatum, " and gadesine from D. pentagynum. These are reviewed in the Specialist Periodical Report on the Alkaloids. 

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See also in sourсe #XX -- [ ]

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