acetamide,ethyl,piperazinyl,sulfonyl,phenyl,1-piperazin,1-piperazinyl
1-Piperazinyl
153468-00-91-Ethyl-8-difluoromethoxy-6-fluoro-1,4-didehydro-7-[4-(2-methoxyphenyl )-1-piperazinyl]-4-oxoquinoline-3-carboxylic acid
63422-71-9(D-)-alpha-[[(4-Ethyl-2,3-dioxo-1-piperazinyl) carbonyl]amino]-2-(4-hydroxyphenyl) acetic acid