Wang Y H, Li J S, Jiang Z R, Kubo H, Higashiyama K, Ohmiya S
Institute of Medicinal Chemistry, Hoshi University, Tokyo, Japan.
Chem Pharm Bull (Tokyo). 2000 May;48(5):641-5. doi: 10.1248/cpb.48.641.
Two new alkaloids were isolated together with 16 known lupin alkaloids from the leaves and stems of Chinese Maackia amurensis. Their structures were determined by spectroscopic methods to be (-)-6alpha-methoxylupanine and (-)-5alpha-(12-cytisinylmethyl)-6alpha-hydroxylupan ine and identified by comparison with synthetic samples. The structures of lupin alkaloids were also related to the geographical distributions of the Maackia plants.
