| 摘要 |
PROBLEM TO BE SOLVED: To provide an industrially excellent method for producing an optically active piperazine derivative useful as a production intermediate for an N,N- substituted cyclic amine derivative useful as a medicine. SOLUTION: This optically active piperazine derivative expressed by the following general formula (I) is obtained by resolving a (±)-piperazine derivative using an optically active carboxylic acid. |
