| abstract |
A compound having the activity of glucokinase activation and being useful for the prevention or treatment of diabetes, etc., represented by the formula: (I) [wherein X is a nitrogen atom, etc.; Y is an oxygen atom, etc.; R1 is an optionally substituted 5 to 6-membered heteroaryl group, etc.; R2 is a hydrogen atom or a fluorine atom; and the ring A is an optionally substituted monocyclic or bicyclic heteroaryl group of the formula: (II) ], or a pharmacologically acceptable salt thereof. |