| abstract |
The following fused-ring compounds, analogs thereof or pharmaceutically acceptable salts thereof have a glucose transport enhancing action and a hypoglycemic action, and are effective in preventing and / or treating diabetes and the like. (In the formula, R is a methoxy group, Y is a (2-thiazolyl) -2-ethylcarbonyl group, R 10 and R 13 are hydrogen atoms, and R 11 and R 12 are methyl groups.) |