patients infected with HCV. We have synthesized a P3 aza-peptide analog of a potent macrocyclic tripeptide inhibitor closely related to BILN 2061. This aza-derivative was found to be >2 orders of magnitude less active than the parent macrocycle in both isolated enzyme (HCV NS3-4A) and HCV subgenomic replicon assays. NMR studies of P3 aza-peptides revealed these compounds adopt a beta-turn conformation
BILN 2061是丙型肝炎病毒
NS3-4A
蛋白酶的大环三肽
抑制剂,在临床上已显示出可有效治疗感染HCV的患者的功效。我们已经合成了与BILN 2061密切相关的强效大环三肽
抑制剂的P3氮杂肽类似物。在这两种分离的酶(HCV -4A)中,发现该氮杂衍
生物的活性均比亲本大环化合物低2个数量级。和HCV亚
基因组复制子检测。对P3氮杂肽的NMR研究表明,这些化合物采用通过分子内H键相互作用稳定的β-转构象。这些结构的分子模型表明P3氮杂残基呈D样构型。因此,