Spasmolytic Effects, Mode of Action, and Structure−Activity Relationships of Stilbenoids from <i>Nidema boothii</i><sup>,</sup>
作者:Yanet Hernández-Romero、Juana-Isela Rojas、Rafael Castillo、Alejandra Rojas、Rachel Mata
DOI:10.1021/np030303h
日期:2004.2.1
inhibited spontaneous contractions (IC(50) = 6.26 +/- 2.5 microg/mL) of the guinea-pig ileum. Bioassay-guided fractionation of the active extract led to the isolation of the novel spiro compound 1, which was given the trivial name nidemone, and the new dihydrophenanthrene 3, characterized as 1,5,7-trimethoxy-9,10-dihydrophenanthrene-2,6-diol. In addition, the known stilbenoids aloifol II (2), 1,5,7-tri
CH(2)Cl(2)-MeOH(1:1)提取物从Nidema Bootii的整个植物中制备,可抑制豚鼠回肠的自发收缩(IC(50)= 6.26 +/- 2.5 microg / mL)。活性提取物的生物测定指导分馏导致分离出新的螺化合物1(其名称为nidemone)和新的二氢菲3(特征为1,5,7-三甲氧基-9,10-二氢菲-2) ,6-二醇。另外,已知的西til类化合物alloifol II(2),1,5,7-三甲氧基菲-2,6-二醇(4),表蒽醌(5),没食子酚(6),表麻酚B(7),2,4-二甲氧基菲获得了-3,7-二醇(8),六硫吡啶(9)和巴他他辛III(10)。分离物通过光谱数据解释进行结构表征。化合物2-6、9 10诱导豚鼠回肠的自发收缩明显的浓度依赖性抑制作用,其IC(50)值介于0.14和2.36 microM之间。合成联苄类似物23-35,并进行药理学测试。结果表明,为