The reaction of activated RNA species with aqueous fluoride ion: a convenient synthesis of nucleotide 5′-phosphorofluoridates and a note on the mechanism
作者:Michael F. Aldersley、Prakash C. Joshi、Herbert M. Schwartz、Anthony J. Kirby
DOI:10.1016/j.tetlet.2014.01.051
日期:2014.2
The chemistry of 5′-phosphorimidazolides of ribonucleosides is extended to include their reaction with alkali metal fluorides in aqueous solution. High yields of 5′-phosphorofluoridates are formed, especially with potassium fluoride, but no detectable oligomerization products were formed. A combination of HPLC, mass spectrometry, synthesis, kinetics, and NMR confirms the identities of the products
核糖核苷的5'-磷酰胺基咪唑化物的化学作用得以扩展,包括它们与水溶液中的碱金属氟化物的反应。形成了高产率的5'-氟代磷酸酯,尤其是氟化钾,但未形成可检测到的低聚产物。HPLC,质谱,合成,动力学和NMR的结合证实了产物的身份。适当控制pH值可在较短的反应时间内获得更高的收率。该新方法与涉及非水化学或带有三磷酸核苷酸的水化学的其他合成路线形成了鲜明的对比。