SYNTHESIS AND BIOLOGICAL ACTIVITY OF 4-SUBSTITUTED 1-[1-(2-HYDROXYETHOXY)- METHYL-1,2,3-TRIAZOL-(4 & 5)-YLMETHYL]-1<i>H</i>-PYRAZOLO[3,4-d]PYRIMIDINES
作者:O. Moukha-Chafiq、M. L. Taha、H. B. Lazrek、C. Pannecouque、M. Witvrouw、E. De Clercq、J. L. Barascut、J. L. Imbach
DOI:10.1081/ncn-100107191
日期:2001.12.31
The chemical synthesis of some 4-substituted 1-[1-(2-hydroxyethoxy)methyl-1,2,3-triazol-(4 and 5)-ylmethyl]-1H-pyrazolo[3,4-d]pyrimidines 12a,b, 13a,b and 14–23 as acyclic nucleosides is described. Treatment of (2-acetoxyethoxy)methylbromide with sodium azide afforded (2-acetoxyethoxy)methylazide 9. The heterocycles 6a,b were alkylated, separately, with propargyl bromide to obtain, regioselectively
一些4-取代的1- [1-(1-(2-羟基乙氧基)甲基] 1,2,3-三唑-(4和5)-基甲基] -1H-吡唑并[3,4-d]嘧啶12a的化学合成, b,13a,b和14-23作为无环核苷进行了描述。用叠氮化钠处理(2-乙酰氧基乙氧基)甲基溴,得到(2-乙酰氧基乙氧基)甲基叠氮化物9。将杂环6a,b分别与炔丙基溴烷基化,以区域选择性地获得4-(甲基和苄基)硫基-1-(丙-2-炔基)-1H-吡唑并[3,4-d]嘧啶7a,b。这些N1-烷基化产物通过1,3-偶极环加成反应与化合物9缩合,在分离和脱保护后获得1,4和1,5-区域异构体12a,b和13a,b。脱保护的无环核苷12a和13a用作制备4-氨基(14和15),4-甲基氨基(16和17),4-苄基氨基(18和19)的前体,4-甲氧基(20和21)和4-羟基(22和23)类似物。评价化合物7a,b和所有去保护的无环核苷对MT-4细胞中HIV