反应详情

7-(t-Butoxycarbonyl-3-pyrrolidinyloxy)-1-cyclopropyl-5-amino-6,8-difluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid (105 mg), 0 5 ml of concentrated hydrochloric acid and 2 xl of acetic acid were used. The compound was treated in a similar manner to Example 1-(2) and recrystallized from ethanol, whereby 82 mg of the title compound was obtained.

1. customrecrystallized from ethanol