piperazinecarbonylchloride,methyl,dioxo,1-piperazin,piperazine
1-Piperazin
887407-22-93-Quinolinecarboxylic acid,1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-7-(2-oxo-1-piperazinyl)-
63422-71-9(D-)-alpha-[[(4-Ethyl-2,3-dioxo-1-piperazinyl) carbonyl]amino]-2-(4-hydroxyphenyl) acetic acid
112984-60-86-Fluoro-1-methyl-4-oxo-7-(1-piperazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylic acid