| 摘要 |
<p>A compound having a structure represented by the following general formula (I): (I) (A is a cyclic group, etc.; R1 and R2 each is alkyl, hydroxymethyl, etc.; and n is 1 or 2); or a pharmacologically acceptable salt or ester of the compound. They are highly active and safe and are useful as a therapeutic agent and/or preventive agent for diabetes, etc.</p> |
