Synthesis and evaluation of new potential HIV-1 non-nucleoside reverse transcriptase inhibitors. New analogues of MKC-442 containing Michael acceptors in the C-6 position
作者:Lene Petersen、Carsten H. Jessen、Erik B. Pedersen、Claus Nielsen
DOI:10.1039/b307800k
日期:——
beta-unsaturated aldehydes and oxidation of the alcohols formed to give the alkenoyl analogues 1a-3a. Analogues 1b-3b containing an allyloxymethyl group in the N-1 position instead of the ethoxymethyl group could not be synthesised due to isomerisation of the allylic group during the metallation reaction. The NMR data for compounds 1a-3a showed a hindered rotation, which was more pronounced for the 6-cyclohexenylcarbonyl
为了研究针对HIV-1突变体(Y181C)的活性,合成了能够进行迈克尔加成反应的MKC-442的类似物。假定与Cys181的巯基可能共价结合,则可以提高活性。将1-乙氧基甲基-5-乙基-1H-嘧啶-2,4-二酮(5)的C-6位置锂化,然后与α,β-不饱和醛反应并氧化形成的醇,得到链烯酰基类似物1a-3a。由于在金属化反应过程中烯丙基的异构化,所以不能合成在N-1位含有烯丙氧基甲基而不是乙氧基甲基的类似物1b-3b。化合物1a-3a的NMR数据显示旋转受阻,对于6-环己烯基羰基衍生物3a,它比对于丙烯基衍生物1a和2a更明显。对于醇8和酮2a-3a,观察到对野生型HIV-1的中等活性。但是,没有观察到针对Y181C突变体的活性。