(−)-N-ethylcytisine, a lupin alkaloid from the flowers of Echinosophora koreensis

(−)-N-ethylcytisine, a lupin alkaloid from the flowers of Echinosophora koreensis Lupin alkaloids from flowers of Echinosophora koreensis N-(3-oxobutyl)cytisine: A new lupin alkaloid from eChinosophora koreensis (−)-12-Cytisineacetic acid, a new lupin alkaloid in Euchresta japonica (−)-3β-13α-dihydroxylupanine from cytisus scoparius (+)-11-oxocytisine, a lupin alkaloid from leaves of sophora secundiflora Cytisine-12-carboxy-ethylester, a quinolizidine alkaloid from Laburnum watereri and its occurrence in the leguminosae Lupin alkaloids fromSophora exigua An effective transformation of (-)-cytisine-type lupin alkaloids into (-)-tsukushinamine-type alkaloids. Lupin Alkaloids from Chinese Maackia Hupehensis.