Synthesis of Novel Derivatives of 4-Amino-3-(2-Furyl)-5-Mercapto-1,2,4-Triazole as Potential HIV-1 NNRTIs
作者:Jingde Wu、Xinyong Liu、Xianchao Cheng、Yuan Cao、Defeng Wang、Zhong Li、Wenfang Xu、Christophe Pannecouque、Myriam Witvrouw、Erik De Clercq
DOI:10.3390/12082003
日期:——
A series of 5-alkylthio (2a-d), 4-arylideneamino (3a-d) and 4-arylideneamino- 5-alkylthio derivatives (4a-f) of 4-amino-3-(2-furyl)-5-mercapto-1,2,4-triazole (1) were synthesized by alkylation of the parent compound with alkyl halides and condensation with aldehydes, respectively. Sulfanyl dimers 5a-d and 4-iminomethyl dimer 6 were correspondingly prepared by reaction with alkane dibromides and 1,4-diformylbenzene. Mannich base 7 was also synthesized by aminomethylation of the 3-sulfanyltriazole 1 at the N1 position. The newly designed and synthesized substituted s-triazole derivatives were assayed for anti-HIV-1 activity by examination of their inhibition of HIV-1-induced cytopathogenicity in MT-4 cells and by determination of their inhibitory effect on HIV-1 reverse transcriptase. Compound 4e was found to be the most active inhibitor against HIV- 1 replication in cell culture (EC50 = 12 μM) and against HIV-1 reverse transcriptase (IC50 = 43.5 μM), which provided a good lead for further optimization.
合成了一系列5-烷基硫代(2a-d)、4-芳基亚胺氨基(3a-d)和4-芳基亚胺氨基-5-烷基硫代衍生物(4a-f),这些化合物是通过对父化合物4-氨基-3-(2-呋喃基)-5-巯基-1,2,4-噻唑(1)进行烷基化反应与烷基卤化物以及与醛的缩合反应而合成的。相应地,通过与烷烃二溴化物和1,4-二甲铵苯的反应合成了二硫醇二聚体5a-d和4-亚甲基二聚体6。还通过在N1位对3-硫代三唑1进行氨基甲基化反应合成了曼尼希碱7。新设计和合成的取代s-三唑衍生物通过检测其对HIV-1诱导的MT-4细胞细胞病理效应的抑制作用以及对HIV-1逆转录酶的抑制作用进行了抗HIV-1活性评估。化合物4e被发现是对细胞培养中HIV-1复制的最活跃抑制剂(EC50 = 12 μM),并且对HIV-1逆转录酶的抑制作用为(IC50 = 43.5 μM),为进一步优化提供了良好的线索。