| 摘要 |
The present invention provides a compound of the general formula: <IMAGE> in which - R1 represents a halogen or a hydrogen atom, or a hydroxy or methoxy group, - R2 represents a hydrogen atom, a lower alkyl radical, a phenyl-lower alkyl radical, a lower alkanoyl radical or a p-toluenesulphonyl group, and - n represents 1 or 2, in the racemic form or as an optical isomer, or salts thereof and a process for their preparation. These compounds are useful in the treatment of diabetes. |
