Investigations of possible prodrug structures for 2-(2-mercaptophenyl)tetrahydropyrimidines: reductive conversion from anti-HIV agents with pyrimidobenzothiazine and isothiazolopyrimidine scaffolds
作者:Shiho Okazaki、Shinya Oishi、Tsukasa Mizuhara、Kazuya Shimura、Hiroto Murayama、Hiroaki Ohno、Masao Matsuoka、Nobutaka Fujii
DOI:10.1039/c5ob00301f
日期:——
3,4-Dihydro-2H,6H-pyrimido[1,2-c][1,3]benzothiazin-6-imine (PD 404182) and 3,4-dihydro-2H-benzo[4,5]isothiazolo[2,3-a]pyrimidine are the heterocyclic antiretroviral agents against human immunodeficiency virus type 1 (HIV-1) infection. On the basis of similar structure–activity relationships of anti-HIV activities toward the early-stage of viral infection between these unique scaffolds, the transformations
3,4-二氢-2 H,6 H-嘧啶[1,2- c ] [1,3]苯并噻嗪-6-亚胺(PD 404182)和3,4-二氢-2 H-苯并[4,5]异噻唑啉[2,3- a]嘧啶是针对人类1型免疫缺陷病毒(HIV-1)感染的杂环抗逆转录病毒药物。基于这些独特支架之间抗HIV活性对病毒感染早期阶段的相似结构-活性关系,研究了生物测定条件下的转化。异噻唑并嘧啶骨架中独特的S–N键在GSH存在下于还原条件下立即裂解,生成硫酚衍生物。观察到PD 404182相似地快速转化为相同的硫酚衍生物,这表明嘧啶并苯并噻嗪和异噻唑并嘧啶骨架可以作为常见生物活性硫酚衍生物的前药形式发挥作用。