The present invention provides a method of producing a pyridine derivative
having a substituent at the 2-position of a heterocyclic structure
conveniently and with fine selectivity. The present invention relates to
a production method of a pyridine derivative having a substituent at the
2-position of a heterocyclic structure, which is represented by the
formula (III), which includes reacting a 2-sulfonylpyridine derivative of
the formula (I) with an organometallic compound of the formula (II) and
the like, and the like: ##STR00001## wherein each symbol is as defined
in the Description.