Studies on the Constituents of Kalopanax Nakai var typicum Nakai

해동피(海桐皮) 성분(成分)에 관(關)한 연구(硏究)

Liriodendrin, m. p. $269-270^{\circ}$, $C_{22}$ $H_{46}$ $O_8$ as one of the antihypertensive components was obtained from the cortex of Kalopanax pictum. Acid hydrolysis of liriodendrin yielided liriresinol-A, -B and glucose. The stereochemistry of liriodendrin was established by the NMR spectrum of liriodrin octaacelate. The NMR spectrum of liriodendrin octaacetate showed that $di-{\beta}-glucoside$ of lirioresinol-B type occurs in nature.