Effects of (+)-, (-)- and (.+-.)-Indenestrols A and B on Microtubule Polymerization.
作者:Taiko ODA、Yumiko SAKAKIBARA、Yoshihiro SATO、Hiroyuki HANZAWA、Tadashi HATA
DOI:10.1248/cpb.40.588
日期:——
metabolite of diethylstilbestrol (DES), and indenestrol B (IB) is an analog of IA. IA was simply obtained from E,E-dienestrol in the presence of dilute sulfuric acid, and a mixture of IA and IB was formed by thermal cyclization of E,E-dienestrol. In order to elucidate the effects of optically active IA and IB on microtubule assembly, the IA and IB enantiomers were separated to greater than 99% purity
茚雌酚A(IA)是己烯雌酚(DES)的代谢产物,茚雌酚B(IB)是IA的类似物。IA是在稀硫酸存在下简单地从E,E-二烯雌酚中获得的,IA和IB的混合物是通过E,E-二烯雌酚的热环化反应而形成的。为了阐明旋光性IA和IB对微管组装的影响,使用手性柱通过高压液相色谱法将IA和IB对映异构体分离成纯度大于99%。通过X射线晶体学分析(-)-IB的二(4-溴苯甲酸酯),并将其绝对结构确定为C(3)-S。使用来自猪脑的微管蛋白,显示(+)-,(-)-和(+/-)-茚雌酚A和B是体外微管组装的抑制剂。(+/-)-IB比(+/-)-IA更活跃,