3,4-Diaminopyrazolo[3,4-<i>d</i>]pyrimidines: a new three-component microwave-assisted synthesis and anti-leukemic properties
作者:Jia Hui Ng、Felicia Phei Lin Lim、Edward R. T. Tiekink、Anton V. Dolzhenko
DOI:10.1039/d3ob00350g
日期:——
the synthesis of N3,N4-disubstituted 3,4-diaminopyrazolo[3,4-d]pyrimidines was developed using a three-component reaction of 3,5-diaminopyrazole-4-carbonitriles with primary amines and orthoesters. The preparation of 116 examples demonstrated the good scope of the reaction, which tolerated variations in the substrate structure and was particularly efficient under microwave irradiation. The short reaction
使用 3,5-二氨基吡唑-4-腈与伯胺和原酸酯的三组分反应,开发了一种合成N 3 , N 4 -二取代 3,4-二氨基吡唑并 [3,4- d ] 嘧啶的简便方法. 116 个实例的制备证明了反应的良好范围,它可以容忍底物结构的变化,并且在微波辐射下特别有效。较短的反应时间和无需层析的产物分离增加了该方法的实用性。体外评估抗白血病活性使用 K562 和 Jurkat T 细胞,并使用非癌性 MRC5 细胞评估最活跃化合物的选择性。最有希望的化合物抑制 Jurkat T 细胞,GI 50值为 0.5 μM,选择性指数为 65。