Alkaloids of Delphinium ajacis syn. Consolida ambigua

Alkaloids of Delphinium ajacis (syn. Consolida ambigua).—Waller and Lawrence have reported further isolation and mass spectral studies of alkaloids from the common larkspur . Ajaconine (32), delcosine (18), acetyldelsosine (33), 

Waller and R. H. Lawrence, Jr., in Recent Developments in Mass Spectrometry in Biochemistry and Medicine, ed. A. Figerio, Plenum, New York, 1978, p. 429. 

No additional physical or chemical data for the new alkaloids were given. However, the base peak in the mass spectra of these bases was the [M - 31] ion, corresponding to the loss of OMe. From previous mass spectral studies of the diterpenoid alkaloids, a loss such as this resulting in the base peak generally 

Some taxonomical confusion exists regarding the speciation of common larkspur , formerly known as D. ajacis, but renamed Consolida ambigua (cf. Vol. 9, p. 223). Given this situation, and the uncertainty in the assignments of the configurations of the methoxy-group at C-1, it is possible that dimethylacetyldelcosine and ambiguine (38) are identical. 

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