7-(3,4-bis-hydroxymethylpyrrolidin-1-yl)-1-cyclopropyl-6-fluoro-8-methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid 、
异丁酸酐 在
吡啶 作用下,
反应 5.0h,
生成 7-(3,4-bis-isobutyryloxymethylpyrrolidin-1-yl)-1-cyclopropyl-6-fluoro-8-methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid