Inhibitors of HIV-1 attachment. Part 9: An assessment of oral prodrug approaches to improve the plasma exposure of a tetrazole-containing derivative
作者:Kap-Sun Yeung、Zhilei Qiu、Zheng Yang、Lisa Zadjura、Celia J. D’Arienzo、Marc R. Browning、Steven Hansel、Xiaohua Stella Huang、Betsy J. Eggers、Keith Riccardi、Ping-Fang Lin、Nicholas A. Meanwell、John F. Kadow
DOI:10.1016/j.bmcl.2012.10.125
日期:2013.1
7-(2H-Tetrazol-5-yl)-1H-indole 3 was found to be a potent inhibitor of HIV-1 attachment but the compound lacked oral bioavailability in rats. The cause of the low exposure was believed to be poor absorption attributed to the acidic nature of the tetrazole moiety and, in an effort to address this liability, three more lipohilic tetrazole analogs, N-acetoxymethyl 4, N-pivaloyloxymethyl 5, and N-methyl
发现7-(2 H-替他唑-5-基)-1 H-吲哚3是HIV-1附着的有效抑制剂,但该化合物在大鼠中缺乏口服生物利用度。该低曝光的原因被认为是吸收差归因于四唑部分的酸性性质,并且在为了解决这个责任,三个亲脂性的四唑类似物,Ñ -acetoxymethyl 4,Ñ -pivaloyloxymethyl 5,和Ñ -甲基6被评估为大鼠中潜在的口服前药。前药5在提高体内3的血浆浓度方面无效,但化合物4提供了3的血浆浓度的15倍增强。最有趣的是,与母体给药相比,类似物6的口服给药使大鼠中母体的血浆浓度显着增加。这代表了甲基四唑的新实例,该甲基四唑用作游离的含NH四唑的化合物的前药。