反应详情

In the same manner as described in Example 1, a mixture of 1-cyclopropyl-5,6,7,8-tetrafluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid, cis-2,6-dimethylpiperazine, and dimethylformamide was stirred at room temperature for 24 hours to give 1-cyclopropyl-5,6,8-trifluoro-7-(cis-3,5-dimethyl-1-piperazinyl)-1,4-dihydro-4-oxoquinoline-3-carboxylic acid, which was recrystallized from chloroform-ethanol, m.p. 259°-260° C.