7-[4-(2,3-Dihydro-1,4-benzodioxine-6-sulfonyl)piperazin-1-yl]-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid 1g

7-[4-(2,3-Dihydro-1,4-benzodioxine-6-sulfonyl)piperazin-1-yl]-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid 1g