Enantioselective inhibition of reverse transcriptase (RT) of HIV-1 by non-racemic indole-based trifluoropropanoates developed by asymmetric catalysis using recyclable organocatalysts
作者:Xin Han、Wenjie Ouyang、Bin Liu、Wei Wang、Po Tien、Shuwen Wu、Hai-Bing Zhou
DOI:10.1039/c3ob41667d
日期:——
Herein, we report the development of efficient inhibitors of reverse transcriptase (RT) of HIV-1 based on indole-alkyl trifluoropyruvate derivatives by a TZM-bl cell assay. The inhibitory activities of the two enantiomers and the corresponding racemic mixture have been compared. TZM-bl cells exhibited strong enantioselective discrimination for the (R)-configuration, among these indole derivatives, the most active compound R-12, with a 5-NO2 substituent, gave the best result when tested in the TZM-bl cells on HIV virus type HIV-1IIIB, with an EC50 value of 0.019 μM, CC50 value of 210.697 μM and SI (selectivity index, CC50/EC50) value of 11 089, respectively. The cell test showed that, in most cases, the R-enantiomer was superior to the Rac-mixture, which was better than the corresponding S-enantiomer. The results indicated that the R-enantiomer is the most favorable configuration as an efficient HIV-1 inhibitor. Molecular modeling studies suggested a structural basis for the enantioselectivity of RT towards this class of molecules.
在此,我们报道了基于吲哚-烷基三氟丙酮酸衍生物的高效HIV-1逆转录酶(RT)抑制剂的开发,通过TZM-bl细胞 assay进行。已经比较了两种对映体及其相应的消旋混合物的抑制活性。TZM-bl细胞对这些吲哚衍生物中的(R)-构型表现出强烈的立体选择性辨别。在这些吲哚衍生物中,活性最强的化合物R-12,带有一个5-NO2取代基,在TZM-bl细胞中对HIV病毒类型HIV-1IIIB进行测试时,得到了最好的结果,其EC50值为0.019 μM,CC50值为210.697 μM,SI(选择性指数,CC50/EC50)值为11089。细胞测试表明,在大多数情况下,R-对映体优于消旋混合物,后者又优于相应的S-对映体。结果表明,R-对映体是最有利于作为高效HIV-1抑制剂的构型。分子建模研究为RT对这类分子的立体选择性提供了结构基础。