Protein Structure-Based Design, Synthesis, and Biological Evaluation of 5-Thia-2,6-diamino-4(3<i>H</i>)-oxopyrimidines: Potent Inhibitors of Glycinamide Ribonucleotide Transformylase with Potent Cell Growth Inhibition
作者:Michael D. Varney、Cindy L. Palmer、William H. Romines、Theodore Boritzki、Stephen A. Margosiak、Robert Almassy、Cheryl A. Janson、Charlotte Bartlett、Eleanor J. Howland、Rosanne Ferre
DOI:10.1021/jm9607459
日期:1997.8.1
The design, synthesis, biochemical, and biological evaluation of a novel series of 5-thia-2,6-diamino-4(3H)-oxopyrimidine inhibitors of glycinamide ribonucleotide transformylase (GART) are described. The compounds were designed using the X-ray crystal structure of human GART. The monocyclic 5-thiapyrimidinones were synthesized by coupling an alkyl thiol with 5-bromo-2, 6-diamino-4(3H)-pyrimidinone
设计,合成,生化和生物学评估的一系列新的5-thia-2,6-diamino-4(3H)-氧代嘧啶的甘氨酰胺核糖核苷酸转化酶(GART)抑制剂。使用人GART的X射线晶体结构设计了这些化合物。通过将烷基硫醇与5-bromo-2,6-二氨基-4(3H)-嘧啶酮20偶联来合成单环5-噻嘧啶酮。使用两种不同的合成途径,以消旋和非对映异构纯形式制备了双环化合物。发现这些化合物的人GART KiS范围为30 microM至2 nM。该化合物抑制了培养物中的L1210和CCRF-CEM细胞的生长,其效力低至低纳摩尔范围,并被发现对从头嘌呤生物合成途径具有选择性。最有效的抑制剂有2种 与谷氨酸部分相连的5-二取代噻吩环。将甲基取代基放置在噻吩环的4位上,得到化合物10、18和19,导致抑制剂的mFBP亲和力大大降低。