Prenylated benzophenone derivatives from Hypericum patulum

Prenylated benzophenone derivatives from Hypericum patulum
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来自金丝桃的异戊二烯化二苯甲酮衍生物

DOI:
10.1007/s11418-019-01350-3
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发表时间:
2020
影响因子:
3.3
通讯作者:
Y.
Y.
中科院分区:
医学3区
文献类型:
--
作者:
Tanaka;N.; Niwa;K.; Yano;Y.; Kashiwada;Y.

文献摘要

相似文献

从展叶金丝桃(Hypericum patulum)的叶片中分离到一个新的异戊二烯基二苯甲酮,即hypatulin C(1),同时还分离到一个生物学上相关的类似物hypelodin B(2)。Hypatulin C(1)具有被四个异戊二烯基取代的三环[4.3.1.03,7]-癸烷部分。通过详细的光谱分析确定了化合物1的结构,并通过ECD光谱与TDDFT计算光谱的比较,确定了化合物1和2的绝对立体化学。
A new prenylated benzophenone, hypatulin C (1), was isolated from the leaves ofHypericum patulumtogether with a biogenetically related analog, hypelodin B (2). Hypatulin C (1) had a tricyclic [4.3.1.03,7]-decane moiety substituted by four prenyl groups. The structure of1was elucidated by detailed spectroscopic analyses, while the absolute stereochemistries of1and2were assigned by comparison of their ECD spectra with TDDFT calculated spectra.