| abstract |
A fused polycyclic compound represented by the following formula, an analogue thereof, and a pharmaceutically acceptable salt of either; and a sugar transportation enhancer, hygroglycemic agent, and medicinal composition each containing any of these. The fused polycyclic compound is highly effective in treatments for diabetes and is reduced in side effects. (I) (In the formula, R represents alkoxy, R' represents oxazolylpropoxy or thiazolylpropoxy, and R' represents hydrogen.) |