Constituents of <i>Bupleurum praealtum</i> and <i>Bupleurum veronense</i> with Potential Immunomodulatory Activity
作者:Niko Radulović、Milica Stevanović、Milan Nešić、Nikola Stojanović、Pavle Ranđelović、Vladimir Ranđelović
DOI:10.1021/acs.jnatprod.0c00437
日期:2020.10.23
separations of the diethyl ether extracts of two European annual Bupleurum taxa, B. praealtum and B. veronense, yielded nine new natural products, namely, a series of esters of stereoisomeric tetradeca-5,7,9,11-tetraen-1-ols (1–4 and 8), a tetra-unsaturated γ-tetradecalactone (5), a dibenzylbutyrolactone lignan (7-oxoarcitin, 6), a falcarinol-related 17-membered macrolide (7) possessing a conjugated diyne-system
在本次调查中,对两种欧洲一年生柴胡类群B. praealtum和B. veronense 的乙醚提取物进行色谱分离,得到了九种新的天然产物,即立体异构十四烷-5,7,9,11-的一系列酯tetraen-1-ols ( 1 – 4 and 8 ), 四不饱和γ-十四内酯 ( 5 ), dibenzylbutyrolactone lignan (7-oxoarcitin, 6 ), falcarinol-related 17-membered macrolide ( 7 ) 具有共轭二炔-系统和酰基间苯三酚衍生物 ( 9)。所有这些新的化合物被充分表征通过NMR,IR,UV,MS,和旋光测定,包括1级1 H NMR全自旋频谱仿真,而的绝对构型1,5,和9分别通过化学相关性和NMR分析测定莫舍酯。的体外的潜在免疫调节活性1,4,5,和(+) - arcitin通过测定对分离的大鼠脾细胞和腹腔巨噬