exo-N-[2-(4-Azido-2,3,5,6-tetrafluorobenzamido)ethyl]-dC: a novel intermediate in the synthesis of dCTP derivatives for photoaffinity labelling
作者:Crina Cismaş、Thanasis Gimisis
DOI:10.1016/j.tetlet.2007.12.083
日期:2008.2
alternative route for the synthesis of a photoaffinity labelling (PAL) dCTP derivative is reported. This method involves the intermediacy of exo-N-[2-(4-azido-2,3,5,6-tetrafluorobenzamido)ethyl]-dC. The latter is prepared from the coupling of known N-(2-aminoethyl)-4-azido-2,3,5,6-tetrafluorobenzamide, prepared in an improved three-step sequence, with an activated 4-triazolyl derivative of dU, followed by
报道了合成光亲和标记(PAL)dCTP衍生物的另一种途径。该方法涉及exo - N- [2-(4-叠氮基-2,3,5,6-四氟苯甲酰胺基)乙基] -dC的中间体。后者是由已知的N-(2-氨基乙基)-4-叠氮基2,3,5,6-四氟苯甲酰胺与dU的活化的4-三唑基衍生物偶联而成的,该偶联物以改进的三步顺序制备,然后解除保护。19 F NMR光谱证明在进行合成转化中非常有用,并且可以控制任何不希望的叠氮化物还原。