Synthesis of 4-aminopyrazolo[3,4-d]pyrimidine derivatives from 5-acetyl-6-amino-4-methylsulfanyl- or 5-acetyl-6-amino-4-methylsulfonylpyrimidines
作者:A. V. Komkov、V. A. Voronkova、A. S. Shashkov、V. A. Dorokhov
DOI:10.1007/s11172-012-0046-1
日期:2012.2
synthesis of 5-acetyl-6-amino-4-methylsulfanylpyrimidines substituted at the exocyclic nitrogen atom, which were further oxidized with m-chloroperbenzoic acid to the corresponding methylsulfonylpyrimidines. Reactions of hydrazines with these pyrimidines containing vicinal Ac and MeS (or MeSO2) groups were used for the preparation of new 4-aminopyrazolo[3,4-d]pyrimidine derivatives.
二乙酰乙烯酮 N,S-乙缩醛用于合成环外氮原子取代的 5-乙酰基-6-氨基-4-甲基硫基嘧啶,再用间氯过苯甲酸将其进一步氧化成相应的甲基磺酰基嘧啶。肼与这些含有邻位 Ac 和 MeS (或 MeSO2) 基团的嘧啶的反应用于制备新的 4-氨基吡唑并 [3,4-d] 嘧啶衍生物。