Influenza Neuraminidase Inhibitors Possessing a Novel Hydrophobic Interaction in the Enzyme Active Site: Design, Synthesis, and Structural Analysis of Carbocyclic Sialic Acid Analogues with Potent Anti-Influenza Activity
作者:Choung U. Kim、Willard Lew、Matthew A. Williams、Hongtao Liu、Lijun Zhang、S. Swaminathan、Norbert Bischofberger、Ming S. Chen、Dirk B. Mendel、Chun Y. Tai、W. Graeme Laver、Raymond C. Stevens
DOI:10.1021/ja963036t
日期:1997.1.1
the presence of a large hydrophobic pocket in the region corresponding to the glycerol subsite of sialic acid. The high antiviral potency observed for 6h appears to be attributed to a highly favorable hydrophobic interaction in this pocket. The practical synthesis of 6 starting from (-)-quinic acid is also described.
描述了作为流感神经氨酸酶 (NA) 过渡态抑制剂的新型碳环的设计、合成和体外评估。8 (IC50 = 6.3 microM) 与 9 (IC50 > 200 microM) 的抗病毒活性表明,碳环类似物中的双键位置在 NA 抑制中起着重要作用。一系列碳环类似物 6a-i 的结构-活性研究确定 3-戊氧基部分是 C3 位置的明显最佳基团,对 NA 抑制的 IC50 值为 1 nM。与 NA 结合的 6h 的 X 射线晶体结构显示,在与唾液酸的甘油亚位点相对应的区域中存在大的疏水口袋。在 6 小时内观察到的高抗病毒效力似乎归因于该口袋中非常有利的疏水相互作用。