A series of tetraethyl 2,4,8,10-tetramethyl-6,12-diaryl-3,9-dioxahexacyclo[6.4.0.02,7.04,11.05,10]dodecane-1,5,7,11-tetracarboxylates (simplified as 3,9-dioxatetraasteranes) with C2-symmetric structural characteristics were synthesized through the [2 + 2] photocycloaddition of the diethyl 2,6-dimethyl-4-aryl-4H-pyran-3,5-dicarboxylates. Besides, their anti-human immunodeficiency virus (HIV)-1 activities were evaluated by enzyme-linked immunosorbent assay (ELISA) assay against HIV-1 (IIIB) replication in MT-4 cell culture. The result showed that the tested compounds exhibited potential activates with IC50 values less than 110 nM. Furthermore, docking study was carried out to study the binding mode of these compounds. The results indicated that the overall orientation of the inhibitors in the active site were similar to that of the cyclic urea AHA001 and a hydrogen bond with the protein residues might play a crucial role in their anti-HIV-1 activities. Such results will provide a theoretical foundation for further investigations on the biological activity of 3,9-dioxatetraasteranes.
一系列具有 C2 对称结构特征的 2,4,8,10-四甲基-6,12-二芳基-3,9-二氧杂六环[6.4.0.02,7.04,11.通过 2,6-二甲基-4-芳基-
4H-吡喃-3,5-二
甲酸二
乙酯的[2 + 2]光环加成反应,合成了具有 C2 对称结构特征的
十二烷-1,5,7,11-四
羧酸盐(简化为 3,9-二氧杂四
烷烃)。此外,还通过酶联免疫吸附试验(ELI
SA)评估了这些化合物在
MT-4
细胞培养中对 HIV-1 (IIIB) 复制的抗人类免疫缺陷病毒(HIV)-1 活性。结果表明,受试化合物具有潜在的活性,其 IC50 值小于 110 nM。此外,还对这些化合物的结合模式进行了对接研究。结果表明,
抑制剂在活性位点的整体取向与环状
脲 AHA001 相似,与蛋白质残基的氢键可能在它们的抗 HIV-1 活性中起着关键作用。这些结果将为进一步研究 3,9-二氧四
酰胺类化合物的
生物活性提供理论基础。