Consolarine, a novel norditerpenoid alkaloid from Consolida armeniaca

Abstract

From the aerial parts of Consolida armeniaca, (Stapf. Ex Huth.) Schrod. a new norditerpenoid alkaloid named consolarine has been isolated along with the known alkaloids ajadelphinine, gigactonine, and lycoctonine. The structure of consolarine (2) was established on the basis of H-1, C-13, DEFT, homonuclear H-1 COSY, HETCOR, NOESY, and COLOC NMR spectral studies.