wild-type C-South African (C-SA) HIV-1 protease. Three compounds are reported herein, two of which displayed IC50 values of less than 1.00 μM. A comparative MM-PB(GB)SA binding free energy of solvation values of PCU-lactam and lactone models and their enantiomers as well as the PCU-lactam-NH-EAIS and lactone-CO-EAIS peptide inhibitors and their corresponding diastereomers complexed with South African HIV
背景技术针对野生型C-南非(C-
SA)HIV-1
蛋白酶设计,合成并评估了新型五
环十一烷(PCU)-内酯-CO-EAIS肽
抑制剂。本文报道了三种化合物,其中两种显示的IC50值小于1.00μM。比较的MM-PB(GB)
SA结合PCU-内酰胺和内酯模型及其对映异构体以及PCU-内酰胺-NH-EAIS和内酯-CO-EAIS肽
抑制剂及其对应的非对映异构体的溶剂化值的自由能进行了南非HIV
蛋白酶(C-
SA)。这将使我们能够合理化PCU-内酰胺-NH-EAIS和PCU-内酯-CO-EAIS肽的抑制浓度(IC50)之间的显着差异。结果与PCU-内酯模型相比,PCU-内酰胺模型显示出更多的负溶剂化结合自由能。对于PCU肽
抑制剂观察到了相同的趋势,这与PCU-内酰胺-NH-EAIS肽(IC50 = 0.076μM)和PCU-内酯-CO-EAIS肽
抑制剂(IC50 = 0.850μM)的实验活性相对应)。此外