| 摘要 |
The present invention is directed to a hypoglycemic agent which comprises as an active ingredient a dihydrochalcone derivative of the formula ¢I!: (see formula I) wherein Ar is an aryl group, R1 is hydrogen atom or an acyl group, R2 is hydrogen atom, an acyl group or .alpha.-D-glucopyranosyl group, or R1 and R2 may combine together to form a substituted methylene group, R3 and R4 are each hydrogen atom or an acyl group, and a group of the formula: OR5 is a protected or unprotected hydroxy group or a lower alkoxy group, or a pharmaceutically acceptable salt thereof.
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