作者:Vítězslav Bambuch、Miroslav Otmar、Radek Pohl、Milena Masojídková、Antonín Holý
DOI:10.1016/j.tet.2006.12.008
日期:2007.2
C-Functionalization of pyrrolo[3,2-d]pyrimidine scaffold in positions 2, 4, and 7 using cross-coupling reactions was performed. Thus, 2-(5-(benzyloxymethyl)-2,4-dichloro-5H-pyrrolo[3,2-d]pyrimidin-7-yl)ethanol, a versatile synthetic precursor for 9-deazapurines and 4,6-diazaindoles, was prepared by vinylation of the corresponding iodide followed by hydroboration of the double bond. A synthesis of 9-(1
使用交叉偶联反应在位置2、4和7上进行吡咯并[3,2- d ]嘧啶骨架的C功能化。因此,2-(5-(苄氧基甲基)-2,4-二氯-5 H-吡咯并[3,2 - d ]嘧啶-7-基)乙醇是9-脱氮嘌呤和4,6-二氮杂吲哚的通用合成前体通过相应碘化物的乙烯基化,然后双键的氢硼化来制备α-己内酰胺。开发了抗病毒DHPA的9-(1,2-二羟乙基)-9-脱氮杂腺嘌呤(9-脱氮-1'-nor同类)的合成。另外,在吡咯并[3,2- d ]嘧啶支架的7位上的末端三键的甲基铝化中观察到异常的区域选择性,导致转化为(Z)-丙-1-烯。