The purpose of the present invention is to provide a glucokinase activator
useful as a pharmaceutical agent such as an agent for the prophylaxis or
treatment of diabetes, obesity and the like.
The present invention provides a glucokinase activator containing a
compound represented by the formula (I):
##STR00001##
wherein R.sup.1 is a hydrogen atom or a halogen atom; R.sup.2 is a group
represented by
##STR00002##
wherein each symbol is defined in the specification,or a salt thereof or a
prodrug thereof.