| abstract |
The present invention provides a fused polycyclic compound of the following formula, analogues thereof and pharmaceutically acceptable salts thereof; and agents for increasing the sugar-transporting capacity, hypoglycemic agents and pharmaceutical compositions containing the above compounds. This fused polycyclic compound has high medicinal properties and few side-effects, and a therapeutic effect on diabetes. n nwherein R represents an alkoxy group, R′ represents an oxazolylpropionyl group or a thiazolylpropionyl group, and R″ represent a hydrogen atom. |