methanone,methylphenyl,piperazinyl,pyridinyl,1-piperazin,1-piperazinyl
1-Piperazin
83734-78-51-Piperazinecarboxylic acid,4-[(1,2,3,4-tetrahydro-2-oxo-6-quinolinyl)carbonyl]-, ethyl ester
112984-60-86-Fluoro-1-methyl-4-oxo-7-(1-piperazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylic acid