Synthesis of dinucleoside phosphates and their analogs by the boranophosphotriester method using azido-based protecting groups
作者:Toshihide Kawanaka、Mamoru Shimizu、Takeshi Wada
DOI:10.1016/j.tetlet.2007.01.064
日期:2007.3
backbone-modified analogs were synthesized in good yields by the boranophosphotriester method in solution. The oligodeoxyriobonucleoside boranophosphates, fully protected with 2-(azidomethyl)benzoyl groups, were converted to the various backbone-modified DNA analogs via the corresponding H-phosphonate intermediates. A new efficient protecting group for the O6-position of 2′-deoxyguanosine, 4-[(2-azidom
通过硼三磷酸硼酸酯方法在溶液中以高收率合成了寡脱氧核糖核苷酸及其骨架修饰的类似物。用2-(叠氮基甲基)苯甲酰基充分保护的寡脱氧核糖核苷硼酸磷酸酯通过相应的H-膦酸酯中间体转化为各种骨架修饰的DNA类似物。还开发了一种新的2'-脱氧鸟苷的O 6位有效保护基,即4-[((2-叠氮基甲基)苯甲酰氧基]苄基(AZBn)。发现通过在二恶烷–2-巯基乙醇–H 2 O中用MePPh 2处理可以快速去除AZBn组。