作者:Joseph I. Degraw、Hiroaki Tagawa、Pamela H. Christie、John A. Lawson、Edward G. Brown、Roy L. Kisliuk、Yvette Gaumont
DOI:10.1002/jhet.5570230101
日期:1986.1
The synthesis of 5,10-dideazaaminopterin by two independent routes is described. Condensation of the piperidine enamine of 4-p-carbomethoxyphenylbutyraldehyde (4) with ethoxymethylenemalononitrile followed by treatment of the resultant arylethylenaminomalononitrile (5) with methanolic ammonia produced 2-amino-3-cyano-5-p-carbomethoxyphenethylpyridine (6). Cyclization of the aminocyanopyridine with
描述了通过两个独立的途径合成5,10-二氮杂氨基蝶呤。4-对-甲氧基甲氧基苯基丁醛的哌啶烯胺(4)与乙氧基亚甲基丙二腈的缩合,然后用甲醇氨处理所得的芳基乙烯基丙二腈(5),产生2-氨基-3-氰基-5-对-甲氧基甲氧基苯乙基吡啶(6)。用胍将氨基氰基吡啶环化,得到4-氨基-4-脱氧-5,10-二脱氮杂戊酸(8)。蝶呤中间体与谷氨酸的偶联产生目标5,10-二氮杂min蝶呤(10)。