Synthesis, biological evaluation and molecular docking study of 1,2,3-1H-triazoles having 4H-pyrano[2,3-d]pyrimidine as potential Mycobacterium tuberculosis protein tyrosine phosphatase B inhibitors
作者:Nguyen Dinh Thanh、Do Son Hai、Nguyen Thi Thu Ha、Do Tien Tung、Cao Thi Le、Hoang Thi Kim Van、Vu Ngoc Toan、Duong Ngoc Toan、Le Hai Dang
DOI:10.1016/j.bmcl.2018.12.009
日期:2019.1
2-amino-4H-pyran-3-carbonitriles, were synthesized in a three-component reaction from substituted benzaldehydes, malononitrile, and ethyl acetoacetate. These heterocycles have been converted subsequently into 4H-pyrano[2,3-d]pyrimidine ring by ring-closing reaction with acetic anhydride in the presence of the concentrated sulfuric acid as catalyst. The successive alkylation reaction of lactam NH bond on pyrimidine-4-one
由取代的苯甲醛,丙二腈和乙酰乙酸乙酯在三组分反应中合成了一些杂环,即2-氨基-4 H-吡喃-3-腈。通过在浓硫酸作为催化剂的存在下与乙酸酐进行闭环反应,这些杂环随后被转化为4H-吡喃并[2,3- d ]嘧啶环。在无水碳酸钾存在下,使用炔丙基溴在干燥的丙酮中,进行嘧啶-4-酮环上内酰胺NH键的连续烷基化反应。3-炔丙基-4H-吡喃并[2,3- d ]嘧啶化合物的点击化学已通过与四-O-乙酰基-α- d反应而完成-使用金属-有机骨架[受电子邮件保护]作为无水乙醇中的催化剂的吡喃葡萄糖基叠氮化物。筛选所有合成的1 H- 1,2,3-三唑8a-y的体外结核分枝杆菌蛋白酪氨酸磷酸酶B(MtbPtpB)抑制作用。活性最高的化合物8v,8x和8y的动力学研究表明,它们对MtbPtpB酶具有竞争性抑制作用。详细的结构-活性关系(SAR)的体外和计算机模拟研究表明,Arg63氨基酸与阴离子型对羟基的相互作用是通过