Design and Synthesis of Classical and Nonclassical 6-Arylthio-2,4-diamino-5-ethylpyrrolo[2,3-<i>d</i>]pyrimidines as Antifolates
作者:Aleem Gangjee、Yibin Zeng、Tina Talreja、John J. McGuire、Roy L. Kisliuk、Sherry F. Queener
DOI:10.1021/jm070165j
日期:2007.6.1
The classical antifolate N-4-[(2,4-diamino-5-ethyl-7H-pyrrolo[2,3-d]pyrimidin-6-yl)sulfanyl]benzoyl}-l-gl utamic acid (2) and 15 nonclassical analogues (3-17) were synthesized as potential dihydrofolate reductase (DHFR) inhibitors and as antitumor agents. 5-Ethyl-7H-pyrrolo[2,3-d]pyrimidine-2,4-diamine (20) served as the key intermediate to which various aryl thiols and a heteroaryl thiol were appended
经典的抗叶酸N- 4-[(2,4-二氨基-5-乙基-7H-吡咯并[2,3-d]嘧啶-6-基)硫烷基]苯甲酰基} -1-gl utamic酸(2)和合成了15种非经典类似物(3-17)作为潜在的二氢叶酸还原酶(DHFR)抑制剂和抗肿瘤剂。5-乙基-7H-吡咯并[2,3-d]嘧啶-2,4-二胺(20)是关键中间体,通过氧化加成反应在6-位连接了各种芳基硫醇和杂芳基硫醇。经典的类似物2是通过将苯甲酸衍生物18与1-谷氨酸二乙酯偶联,然后进行皂化而合成的。经典化合物2是人类DHFR的优异抑制剂(IC50 = 66 nM),也是培养中几个肿瘤细胞生长的两位数纳摩尔(<100 nM)抑制剂。