Efficient synthesis and preliminary biological evaluations of trifluoromethylated imidazo[1,2-<i>a</i>]pyrimidines and benzimidazo[1,2-<i>a</i>]pyrimidines
作者:Badr Jismy、Mohamed Akssira、Damijan Knez、Gérald Guillaumet、Stanislav Gobec、Mohamed Abarbri
DOI:10.1039/c9nj01982k
日期:——
Fluoromethylated imidazo[1,2-a]pyrimidines and benzimidazo[1,2-a]pyrimidines were synthesized through Michael addition/intramolecular cyclization reaction by condensation of 2-amino imidazole derivatives with ethyl 4,4,4-trifluorobut-2-ynoate and using C–O bond activation. The synthons thus obtained can be functionalized by forming new chemical bonds, including C–C, C–N and C–S, to provide easy access
氟甲基化的咪唑并[1,2- a ]嘧啶和苯并咪唑并[1,2- a ]嘧啶是通过2-氨基咪唑衍生物与4,4,4-三氟丁-2-酸乙酯缩合的迈克尔加成/分子内环化反应合成的并使用C–O键激活。如此获得的合成子可通过形成新的化学键(包括C–C,C–N和C–S)进行功能化,以轻松获得各种新型三氟甲基化的咪唑并[1,2- a ]嘧啶和苯并咪唑并[1] ,2- α ]嘧啶的收率好至极好。初步生物学评估显示,许多衍生物均显示出微摩尔IC 50 抗单胺氧化酶B和丁酰胆碱酯酶的价值,这是神经退行性疾病领域的两个重要目标。