THE ALKALOIDS OF FUMARIACEOUS PLANTS: XXXI. CORYDALIS MONTANA (ENGELM.) BRITTON

Abstract

Seven known alkaloids have been isolated from Corydalis montana (Engelm.) Britton, namely: protopine, dl-tetrahydro-palmatine, corydaline, capauridine, capaurine, scoulerine, and capaurimine. Two new bases have been isolated. One of these, alkaloid F57, was obtained by reduction of a quaternary base which itself could not be obtained crystalline. C. aurea has also yielded the same base. It is represented by C18H21O3N containing three methoxyls. The second new base, alkaloid F56, is represented by C23H27O6N containing four methoxyl groups.It is pointed out that the chemical differences between C. aurea and C. montana are of sufficient magnitude to allocate specific rank to each plant.