phosphorylating agent, bis[2-(p-nitrophenyl)ethyl] phosphorochloridate (3), has been prepared and is used for 3′- and/or 5′-phosphorylations of nucleosides. The resulting bis[2-(p-nitrophenyl)ethyl] phosphotriesters are versatile synthons in oligonucleotide synthesis leading finally to 3′- and/or 5′-terminated monophosphates in excellent yields.
已经制备了一种新型的通用
磷酸化试剂双[2-(对
硝基苯基)乙基]
氯代
磷酸酯(3),并将其用于核苷的3'-和/或5'-
磷酸化。所得的双[2-(对
硝基苯基)乙基]
磷酸三酯是寡核苷酸合成中的通用合成子,最终以优异的产率产生了3'-和/或5'-封端的单
磷酸酯。