Design, synthesis and anti-acetylcholinesterase evaluation of some new pyrazolo[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidine derivatives
作者:Anis Romdhane、Abderrahim Ben Said、Maher Cherif、Hichem Ben Jannet
DOI:10.1007/s00044-016-1576-0
日期:2016.7
The target new hybrid molecule types pyrazolo[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidines phosphonates 4 and 2-(coumarin-3’’-yl)-7-phenylpyrazolo[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidines 5 were prepared via Michaelis–Arbuzov rearrangement (Arbuzov reaction) of pyrazolotriazolopyrimidines chloride 3a–c, with trialkyl phosphate and Knoevenagel reaction of 2-cyanomethyl derivatives 3d–f with salicylic aldehyde
目标新型杂合分子类型为吡唑并[4,3 - e ] -1,2,4-三唑并[1,5- c ]嘧啶膦酸酯4和2-(香豆素-3''-基)-7-苯基吡唑并[4]通过吡唑并三唑并嘧啶氯化物3a–c的Michaelis–Arbuzov重排(Arbuzov反应),磷酸三烷基酯和2-氰基甲基的Knoevenagel反应制备了,3- e -1,2,4-三唑并[1,5- c ]嘧啶5衍生物3d–f分别含有水杨醛。从氨基吡唑1开始,分两步获得前体3。目标化合物4和5通过1 H NMR,13 C NMR,31 P NMR,IR和HRMS完全表征。对化合物4和5的抗乙酰胆碱酯酶活性进行了评估,结果表明它们具有显着的活性(IC 50 = 1.73–39.86 µM),并对这些化合物的初步SAR进行了研究。