作者:James R. Piper、John A. Montgomery
DOI:10.1021/jm00177a022
日期:1980.3
10-Deazaaminopterin, a potential antitumor agent now undergoing clinical trials, has been synthesized by a new approach involving the Wittig reaction. The ylide obtained by reaction of 6-(bromomethyl)-2,4-pteridinediamine with triphenylphosphine in Me2NAc, followed by treatment with NaOMe, underwent smooth reaction with diethyl N-(4-formylbenzoyl)-L-glutamate to give the vinyl precursor of the subject
10-脱氮氨基蝶呤是一种正在接受临床试验的潜在抗肿瘤药物,已通过涉及Wittig反应的新方法合成。通过在Me2NAc中将6-(溴甲基)-2,4-吡啶二胺与三苯膦反应,然后用NaOMe处理而获得的叶立德与N-(4-甲酰基苯甲酰基)-L-谷氨酸二乙酯进行平滑反应,得到主题化合物。该产物在环境条件下的催化氢化作用(在冰AcOH中为Pt)导致吸收3摩尔当量的H 2。根据紫外光谱数据,在酯化基团的皂化过程中暴露在空气中显然得到了7,8-二氢化合物,并且进一步用H2O2氧化导致了10-脱氮氨基蝶呤。