함박꽃나무 잎으로 부터 새로운 Aporphine계 Alkaloid 성분의 분리

A New Aporphin-Type Alkaloid from the Leaves of Magnolia sieboldii K. Koch

From the leaves of Magnolia sieboldii a new aporphine-type alkaloid named magnoporphine was isolated. The structure of magnoporphine was all assigned by $^1H-^1H$COSY, $^1H-^{13}C$ COSY and $^1H-^{13}C$ long range NMR. In addition, costunolide, syringin, syringenin $4-O-{\beta}-cellobioside$ and echinacoside was isolated.