Guo Huanfang, Zhuang Xiaomei, Qian Keduo, Sun Lianqi, Wang Xiaofeng, Li Hua, Lee Kuohsiung, Xie Lan
Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China.
Acta Pharm Sin B. 2012 Apr 1;2(2):213-219. doi: 10.1016/j.apsb.2012.02.008.
3-Hydroxymethyl-4-methyl-DCK (, HMDCK) was discovered previously as a potent HIV non-nucleoside reverse transcriptase inhibitor (NNRTIs) (EC: 0.004 μM, TI: 6225) with a novel mechanism of action. It exerts anti-HIV activity by inhibiting the production of HIV-1 double-stranded viral DNA from a single-stranded DNA intermediate, rather than blocking the generation of single-stranded DNA from a RNA template, which is the mechanism of action of current HIV-1 RT inhibitors. However, the insufficient metabolic stability of limits its further clinical development. In the current study, a series of ester prodrugs of was designed and synthesized to explore the new drug candidates as NNRTIs. The l-alanine ester prodrug exhibited desirable pharmacokinetic properties and and showed improved oral bioavailability of 26% in rat, and would be a potential clinical candidate as a new anti-AIDS drug.
3-羟甲基-4-甲基-DCK(HMDCK)先前被发现是一种有效的HIV非核苷逆转录酶抑制剂(NNRTIs)(EC:0.004μM,TI:6225),具有新颖的作用机制。它通过抑制从单链DNA中间体产生HIV-1双链病毒DNA来发挥抗HIV活性,而不是像目前HIV-1 RT抑制剂的作用机制那样阻断从RNA模板产生单链DNA。然而,其代谢稳定性不足限制了它的进一步临床开发。在当前的研究中,设计并合成了一系列HMDCK的酯前药,以探索作为NNRTIs的新候选药物。L-丙氨酸酯前药表现出理想的药代动力学性质,在大鼠体内口服生物利用度提高了26%,将是一种潜在的新型抗艾滋病临床候选药物。