Orally Active CCR5 Antagonists as Anti-HIV-1 Agents: Synthesis and Biological Activity of 1-Benzothiepine 1,1-Dioxide and 1-Benzazepine Derivatives Containing a Tertiary Amine Moiety
作者:Masaki Seto、Yoshio Aramaki、Tomohiro Okawa、Naoki Miyamoto、Katsuji Aikawa、Naoyuki Kanzaki、Shin-ichi Niwa、Yuji Iizawa、Masanori Baba、Mitsuru Shiraishi
DOI:10.1248/cpb.52.577
日期:——
(hetero)arylmethyl groups as the 1-substituent on the 1-benzazepine ring together with the 2-(butoxy)ethoxy group led to further increase of activity. Among the 1-benzazepine derivatives, the isobutyl (6i), benzyl (6o) or 1-methylpyrazol-4-ylmethyl (6s) compounds were found to exhibit highly potent inhibitory effects, equivalent to the injectable CCR5 antagonist 1, in the HIV-1 envelope-mediated membrane fusion
通过化学修饰含有叔胺部分的1-苯并噻庚因1,1-二氧化物3和1-苯并ze庚因4铅化合物来进行口服活性CCR5拮抗剂的研究。在1-苯并噻吩环的7-苯基上的4-位用2-(C(2-4)烷氧基)乙氧基取代甲基导致口服时活性增强和药代动力学特性显着改善大鼠给药。引入C(2-4)烷基,苯基或(杂)芳基甲基作为1-苯并ze庚因环上的1-取代基与2-(丁氧基)乙氧基一起导致活性的进一步提高。在1-苯并ze庚因衍生物中,发现异丁基(6i),苄基(6o)或1-甲基吡唑-4-基甲基(6s)化合物具有很强的抑制作用,在HIV-1包膜介导的膜融合测定中,其等同于可注射的CCR5拮抗剂1。特别是,化合物6s对膜融合表现出最强的CCR5拮抗活性(IC(50)= 2.7 nM)和抑制作用(IC(50)= 1.2 nM),并且在大鼠中具有良好的药代动力学特性。描述了1-苯并噻庚因1,1-二氧化物和1-苯并ze庚因衍生物的合成及其生物学活性。