Chiral resolution, absolute configuration assignment and biological activity of racemic diarylpyrimidine CH(OH)-DAPY as potent nonnucleoside HIV-1 reverse transcriptase inhibitors
作者:Shuang-Xi Gu、Zhi-Ming Li、Xiao-Dong Ma、Shi-Qiong Yang、Qiu-Qin He、Fen-Er Chen、Erik De Clercq、Jan Balzarini、Christophe Pannecouque
DOI:10.1016/j.ejmech.2012.04.004
日期:2012.7
the chiral technique of supercritical fluid chromatography (SCF) with enantiomeric excess (ee%) >99% and purity >99%, and assigned for their absolute configuration as R and S, respectively, by the experimental electronic circular dichroism (ECD) spectrum and simulated ECD spectra calculated by time-dependent density functional theory (TDDFT) calculations. (+)-(R)-3a displayed excellent activity with
通过对映体过量(ee%)> 99%和纯度> 99%的超临界流体色谱(SCF)的手性技术成功地将(+)- 3a和(-)- 3a与外消旋物(±)-3a分离并分配分别通过实验性电子圆二色性(ECD)光谱和模拟的ECD光谱将它们的绝对构型分别定义为R和S,并通过时变密度泛函理论(TDDFT)计算得出。(+)-(R)-3a对野生型HIV-1表现出优异的活性,EC 50为5.3 nM,是(-)-(S)-3a效力的12倍。但是,(-)-(小号) -图3a显示出比更高的效力(+) - ([R )- 3a中针对双HIV-1 RT突变体(K103N + Y181C)以及HIV-2 ROD应变。通过分子对接来解释(R)-和(S)-3a抗HIV-1活性差异的可能原因。