2,4-Diamino-5-methyl-6-substituted arylthio-furo[2,3-d]pyrimidines as novel classical and nonclassical antifolates as potential dual thymidylate synthase and dihydrofolate reductase inhibitors
作者:Aleem Gangjee、Hiteshkumar D. Jain、Jaclyn Phan、Xin Guo、Sherry F. Queener、Roy L. Kisliuk
DOI:10.1016/j.bmc.2009.11.029
日期:2010.1
A novel classical antifolate N-4-[(2,4-diamino-5-methyl-furo[2,3-d]pyrimidin-6-yl)thio]-benzoyl}-l-glutamic acid 5 and 11 nonclassical antifolates 6–16 were designed, synthesized, and evaluated as inhibitors of dihydrofolate reductase (DHFR) and thymidylate synthase (TS). The nonclassical compounds 6–16 were synthesized from 20 via oxidative addition of substituted thiophenols using iodine. Peptide
一种新型经典抗叶酸剂N -4-[(2,4-diamino-5-methyl-furo[2,3 - d ]pyrimidin-6-yl)thio]-benzoyl} -l -glutamic acid 5和 11 非经典抗叶酸剂6 - 16被设计、合成并评估为二氢叶酸还原酶 (DHFR) 和胸苷酸合酶 (TS) 的抑制剂。非经典化合物6-16是由20通过使用碘氧化加成取代的苯硫酚合成的。中间体酸21 的肽偶联,然后皂化得到经典的类似物5。化合物5据我们所知,第一个例子是 2,4-二氨基呋喃 [2,3- d ]嘧啶经典抗叶酸,它对人类 DHFR 和人类 TS 都具有抑制活性。与哺乳动物 DHFR 相比,经典类似物5是卡氏肺囊虫DHFR 和鸟分枝杆菌DHFR的纳摩尔抑制剂和显着选择性抑制剂,分别为 263 倍和 2107 倍。非经典类似物6-16对病原体 DHFR 或 TS 具有中等效力。该研究表明呋喃[2