New bisabolane sesquiterpenoids from the rhizomes of Curcuma xanthorrhiza (Zingiberaceae) II.
作者:Shin-ichi UEHARA、Ichiro YASUDA、Koichi TAKEYA、Hideji ITOKAWA、Yoichi IITAKA
DOI:10.1248/cpb.38.261
日期:——
Four bisabolane sesquiterpenoids, named bisacurone epoxide ((1))___∼, bisacurone A ((2))___∼) bisacurone B ((3))___∼ and bisacurone C ((4))___∼, were isolated from the chloroform-soluble fractions of the rhizomes of Curcuma xanthorrhiza (Zingiberaceae). The absolute structures of these new compounds were determined on the basis of their spectral data, chemical conversions and X-rat crystallography. In the process of determining the absolute structure of 1__∼, the stereochemistry reported for bisacurone ((5))___∼ in our previous paper was revised.
从姜科黄姜(Curcuma xanthorrhiza)的氯仿溶解部分中分离出四种双松烯倍半萜,分别命名为双姜酮氧化物(bisacurone epoxide)((1))___∼、双姜酮A(bisacurone A)((2))___∼、双姜酮B(bisacurone B)((3))___∼和双姜酮C(bisacurone C)((4))___∼。这些新化合物的绝对结构是基于它们的光谱数据、化学转化和X射线晶体学确定的。在确定化合物1__∼的绝对结构的过程中,我们在之前的论文中报告的双姜酮的立体化学进行了修正。