Benzamide derivatives, a process for preparing the same, and pharmaceutical compositions containing the same.

摘要

Benzamide derivatives of the formula:
<Chemistry id="chema01" num="0001"><Image id="ia01" he="20" wi="57" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein R, is a hydrogen atom, a methyl group of a methoxy group; R<Sub>2</Sub> is a straight-chain or branched-chain alkyl group having 2 to 8 carbon atoms, a substituted phenyl group, or group -NHR<Sub>4</Sub>, R<Sub>4</Sub> being a hydrogen atom, a straight-chain or branched-chain or cyclic alkyl group having 1 to 6 carbon atoms, or a phenyl group that may have a substituent on the nucleus; R<Sub>3</Sub> is a hydrogen atom or one or two alkyl groups having 1 to 4 carbon atoms and n is 0 or 1, a process for preparing these derivatives, and pharmaceutical compositions containing the same are provided.

The compounds of the above formula has the action to reduce the blood glucose level and, therefore, are useful as medicines.