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Report | Regular issue | Vol 23, No. 2, 1985, pp.331-338
Published online, 1st January, 1970
DOI: 10.3987/R-1985-02-0331
Alkaloidas of Aconitum columbianum Nutt.

S. William. Pelletier,* Santosh K. Srivastava, Balawant S. Joshi, and John D. Olsen

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


The alkaloidal constituents of Aconitum columbianum Nutt. ssp. columbianum have been investigated. In addition to the known alkaloids cammaconine (12), deltaline (10), dictyocarpine (11), talatizamine (3), and 8-O-methyltalatizamine (7), a new base columbidine (4) has been isolated and its structure elucidated. The structure was derived on the basis of spectral data and chemical correlation with talatizamine. Synthesis of 7 from talatizamine is described and the 13C-nmr spectrum of 14-dehydrotalatizamine has been recorded. Certain 13C-nmr signals for these compounds have been reassigned.