A New and Efficient Synthesis of Pyrrolo[2,3-<i>d</i>]pyrimidine Anticancer Agents: Alimta (LY231514, MTA), Homo-Alimta, TNP-351, and Some Aryl 5-Substituted Pyrrolo[2,3-<i>d</i>]pyrimidines
作者:Edward C. Taylor、Bin Liu
DOI:10.1021/jo030248h
日期:2003.12.1
primary nitro Michael adduct. Spontaneous intramolecular cyclization of the resulting aldehyde with the pyrimidine 6-amino group yields the corresponding pyrrolo[2,3-d]pyrimidine. A series of previously unknown 5-arylpyrrolo[2,3-d]pyrimidines was prepared by the same methodology from the above pyrimidines and nitrostyrenes. It has been found that the intermediate primary nitro Michael adduct can be prepared
已经通过一种新方法制备了Alimta以及均Alimta,Alimta的非桥接类似物以及TNP-351,该方法涉及将适当的1-硝基烯烃与2,6-二氨基-3H-嘧啶-4-酮进行迈克尔加成反应。或2,4,6-三氨基嘧啶,然后进行Nef反应,生成伯硝基迈克尔加合物。所得醛与嘧啶6-氨基的自发分子内环化反应产生相应的吡咯并[2,3-d]嘧啶。用相同的方法由上述嘧啶和硝基苯乙烯制备一系列以前未知的5-芳基吡咯并[2,3-d]嘧啶。已经发现,可以通过在含乙酸铵的乙酸中对芳基醛,硝基甲烷和6-氨基嘧啶的混合物进行超声处理而一步制备中间体伯硝基迈克尔加合物。