Syntheses of Two Cytotoxic Sinapyl Alcohol Derivatives and Isolation of Four New Related Compounds from <i>Ligularia</i> <i>n</i><i>elumbifolia</i>
作者:Yu Zhao、Xiaojiang Hao、Wei Lu、Junchao Cai、Hong Yu、Thierry Sevénet、Françoise Guéritte
DOI:10.1021/np0200257
日期:2002.6.1
Phytochemical reinvestigation on Ligularia nelumbifolia afforded four novel sinapyl alcohol analogues named nelumols B-E (1-4) and three known sinapyl alcohol derivatives (5-7). Their structures were elucidated by NMR techniques. Total syntheses of cytotoxic geranyloxy sinapyl alcohol (6) and geranyloxy sinapyl aldehyde (7) were carried out via two different paths. The 4-O-benzyl-substituted analogues
通过对叶Li草进行植物化学再研究,得到了四种新的芥子醇类似物,命名为nelumols BE(1-4)和三种已知的芥子醇衍生物(5-7)。通过NMR技术阐明了它们的结构。通过两种不同的途径进行了细胞毒性的香叶基香叶醇(6)和香叶基香叶醛(7)的合成。还合成了4-O-苄基取代的类似物(20和27)以及4-O-(2-甲基丁烯基)衍生物(34和35)。使用A-549,HL-60和KB癌细胞系测量了6和7的细胞毒性。