Structure-based design of inhibitors of purine nucleoside phosphorylase. 3. 9-Arylmethyl derivatives of 9-deazaguanine substituted on the arylmethyl group
作者:Mark D. Erion、Shri Niwas、Jerry D. Rose、Subramaniam Ananthan、Mark Allen、John A. Secrist、Y. Sudhakar Babu、Charles E. Bugg、Wayne C. Guida
DOI:10.1021/jm00076a004
日期:1993.11
in the design of a potent series of mammalian purine nucleoside phosphorylase (PNP) inhibitors. Enhanced potency was achieved by designing substituted 9-(arylmethyl)-9-deazaguanine analogs that interact favorably with all three of the binding subsites of the PNP active site, namely the purine binding site, the hydrophobic pocket, and the phosphate binding site. The most potent PNP inhibitor prepared
X射线晶体学和计算机辅助分子建模(CAMM)研究有助于设计一系列有效的哺乳动物嘌呤核苷磷酸化酶(PNP)抑制剂。通过设计取代的9-(芳基甲基)-9-脱氮鸟嘌呤类似物可实现增强的效力,所述类似物可与PNP活性位点的所有三个结合亚位,即嘌呤结合位点,疏水口袋和磷酸盐结合位点良好地相互作用。我们研究中制备的最有效的PNP抑制剂(S)-9- [1-(3-氯苯基)-2-羧乙基] -9-脱氮鸟嘌呤(18b)的IC50为6 nM,而相应的(R)-异构体的效力降低了30倍。