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Report | Regular issue | Vol 20, No. 7, 1983, pp.1347-1354
Published online, 1st January, 1970
DOI: 10.3987/R-1983-07-1347
The Diterpenoid Alkaloids of Delphinium tatsienense Franch

S. William Pelletier, Jan A. Glinski, B. S. Joshi, and Szu-ying Chen

*Department of Chemistry, Institute for Natural Products Research, The University of Georgia, Chemistry Building, Athens, Georgia 30602-2556, U.S.A.


From the roots of Delphinium tatsienense Franch (Ranunculaceae) two new and six known alkaloids have been isolated. The isolation and structure determination of deacetylambiguine (2) and a novel C19-diterpenoid alkaloid designated as tatsiensine (1) are described. The structure of tatsiensine was established on the basis of spectroscopic data and correlation with delpheline (12). Deacetylambiguine (2) has been isolated for the first time from a natural source. The known alkaloids that were isolated are the C19-diterpenoid alkaloids, browniine (3), delcosine (4), lycoctonine (8), and the C20-alkaloids ajaconine (6), hetisine (7) and hetisinone (5).