Lythraceous Alkaloids. I. Characterization of the Novel Alkaloids, Lythranine, Lythranidine, and Lythramine isolated from Lythrum anceps MAKINO

Abstract

Novel alkaloids, lythranine (III), lythranidine (VI), and lythramine (VII), were isolated from Lythrum anceps MAKINO. Lythranine, C₂₈H₃₇O₅N, was hydrolyzed with weak alkali to give lythranidine, C₂₆H₃₅O₄N. Lythranine on reaction with formalin gave lythramine, C₂₉H₃₇O₅N. Functional groups were investigated on these alkaloids and all of the O- and N-functions were clarified.