Oppositane and chiloscyphane sesquiterpenoids from the liverwortChiloscyphus pallescens
摘要:
Two new sesquiterpenoids, 11-zeta,12-epoxy-chiloscypholone and ent-(5R,6S,9R)-4-alpha-hydroxy-oppositan-10-one were isolated from the liverwort Chiloscyphus pallescens.
The structure of chiloscypholone, a sesquiterpenoid with a novel carbon skeleton, from the liverwort Chiloscyphus pallescens. A revised structure for chiloscyphone
作者:Joseph D. Connolly、Leslie J. Harrison、David S. Rycroft
DOI:10.1039/c39820001236
日期:——
Chiloscypholone, a bicyclic sesquiterpenoidfrom the liverwortChiloscyphuspallescens, is shown to have the structure (3), with a novel ring-contracted eremophilane skeleton, on the basis of chemical and spectroscopic (mainly from 1H and 13C n.m.r. spectra) evidence; dehydration of (3) gives two isomeric dienones, one of which is chiloscyphone, originally isolated from C. polyanthus, now assigned
基于化学和光谱学(主要来自1 H和13 C nmr光谱)的证据显示,地氯菊酯(Closlosphus pallescens)的双环倍半萜类化合物Chiloscypholone具有结构(3),具有新颖的环状收缩的艾美龙骨架。(3)的脱水得到两个异构的二烯酮,其中之一是最初从聚花金丝桃中分离出来的香豆素,现在被赋予了改型的结构(4)。
Tori, Motoo; Hasebe, Takeshi; Asakawa, Yoshinori, Journal of the Chemical Society. Perkin transactions I, 1989, p. 1552 - 1553
作者:Tori, Motoo、Hasebe, Takeshi、Asakawa, Yoshinori
DOI:——
日期:——
TORI, MOTOO;HASEBE, TAKESHI;ASAKAWA, YOSHINORI, J. CHEM. SOC. PERKIN TRANS. PT 1,(1989) N, C. 1552-1553