Phosphorylating agent and method for forming phosphodiester bond using the same

摘要

A phosphorylating agent represented by the following general formula [1]: <IMAGE> [1] wherein R represents a protective group of the phosphoric acid; and X represents a heterocyclic residue represented by the following general formula [2]: <IMAGE> [2] wherein Y represents a single bond or an oxygen or sulfur atom; Z represents a heterocyclic nucleus comprising at least one nitrogen atom as a ring-forming element and may be condensed with another aromatic ring; and W represents one or more substituents other than a hydrogen atom. The phosphorylating agent is stable, can rapidly proceed phosphodiester bond-forming reactions in good selectivity under mild conditions and thus makes it possible to perform a reaction even in a relatively large scale.