Nonnucleoside HIV-1 Reverse-Transcriptase Inhibitors, Part 5. Synthesis and Anti-HIV-1 Activity of Novel 6-Naphthylthio HEPT Analogues
作者:Guang-Fu Sun、Xu-Xiang Chen、Fen-Er Chen、Yue-Ping Wang、Erik De Clercq、Jan Balzarini、Christophe Pannecouque
DOI:10.1248/cpb.53.886
日期:——
As part of a series of studies to discover new HIV reverse-transcriptase inhibitors, various novel 6α- and 6β-naphthylthio 1-[(2-hydroxyethoxy)methyl]-6-(phenylthio) thymine (HEPT) derivatives were synthesized, and in vitro anti-HIV-1 activity was evaluated. The results revealed that most of 6α-naphthylthio HEPT derivatives (7a—w) showed good activity [for 7e, IC50 value of 0.048 μM and selectivity index (SI) value of 735; for 7h, IC50 value of 0.057 μM and SI value of 579; for 7k, IC50 value of 0.063 μM and SI value of 565], 6β-naphthylthio HEPT derivatives (8a—f) showed low activity, but the introduction of α nitro group to the C-1 position of the 6β-naphthyl ring in the 6β-naphthylthio series (11a—c) resulted in a dramatic increase in anti-HIV-1 activity.
作为发现新的 HIV 逆转录酶抑制剂的一系列研究的一部分,合成了各种新型 6α- 和 6β- 萘硫基 1-[(2-羟乙氧基)甲基]-6-(苯硫基)胸腺嘧啶(HEPT)衍生物,并对其体外抗 HIV-1 活性进行了评估。结果表明,大多数 6α-naphthylthio HEPT 衍生物(7a-w)都表现出良好的活性[7e 的 IC50 值为 0.048 μM,选择性指数(SI)值为 735;7h 的 IC50 值为 0.057 μM,选择性指数(SI)值为 579;7k 的 IC50 值为 0.063 μM,选择性指数(SI)值为 0.063 μM,SI 值为 565],6β-萘硫基 HEPT 衍生物(8a-f)的活性较低,但在 6β-萘硫基系列(11a-c)的 6β-萘环的 C-1 位上引入 α 硝基后,抗 HIV-1 活性显著提高。