Synthesis of N-[4-[1-Ethyl-2-(2,4-diaminofuro[2,3-<i>d</i>]pyrimidin-5-yl)ethyl]benzoyl]-<scp>l</scp>-glutamic Acid as an Antifolate
作者:Aleem Gangjee、Yibin Zeng、John J. McGuire、Roy L. Kisliuk
DOI:10.1021/jm010575m
日期:2002.4.1
N-[4-[1-Ethyl-2-(2,4-diaminofuro[2,3-d]pyrimidin-5-yl)ethyl]benzoyl]-L-glutamic acid 3 was designed and synthesized to investigate the effect of homologation of a C9-methyl to an ethyl on dihydrofolate reductase (DHFR) inhibition and on antitumor activity. Compound 3 was obtained via a concise seven step synthesis starting from palladium-catalyzed carbonylation of 4-propionylphenol, followed by a Wittig
设计并合成了N- [4- [1-乙基-2-(2,4-二氨基呋喃[2,3-d]嘧啶-5-基)乙基]苯甲酰基] -L-谷氨酸3,以研究其作用。在二氢叶酸还原酶(DHFR)抑制作用和抗肿瘤活性方面将C9-甲基与乙基同化。化合物3是通过简明的七步合成法制得的,该方法从钯催化的4-丙酰基苯酚的羰基化反应开始,然后与2,4-二氨基-5-(氯甲基)呋喃[2,3-d]嘧啶(6)进行Wittig反应。 ,催化氢化,水解和标准肽与L-谷氨酸二乙酯偶联。生物学结果表明,将C9-甲基延伸至C8-C9桥区域上的乙基(类似物3)使对重组人(rh)DHFR的抑制能力加倍(IC(50)= 0。与C9-甲基类似物1相比21微米),并且比C9-H类似物2效力高4倍。与1相比,化合物3对GI( 50)值<1.0 x 10(-8)M。化合物3也是胸苷胸苷酸合酶的弱抑制剂。化合物1和3是人类叶酰聚谷氨酸合成酶(FPGS)的有效底物