| 摘要 |
A fused heterocyclic derivative represented by the general formula (I) (wherein R1 is hydrogen, OH, etc.; R2 is hydrogen, halogeno, or alkyl; R3 and R4 each is hydrogen, OH, halogeno, etc.; Q is alkylene, etc.; ring A is aryl or heteroaryl; and G is the group represented by the formula (G1) or (G2)), (G1) (G2) a pharmacologically acceptable salt of the derivative, or a prodrug of either. They have excellent inhibitory activity against human SGLT and are useful as preventive or therapeutic agents for diseases attributable to hyperglycemia, such as diabetes, postprandial hyperglycemia, impaired glucose tolerance, complications of diabetes, and obesity.
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