methanone,ethyl,piperazinyl,quinoxalinyl,phenyl,1-piperazin,1-piperazinyl
Piperazinyl
63422-71-9(D-)-alpha-[[(4-Ethyl-2,3-dioxo-1-piperazinyl) carbonyl]amino]-2-(4-hydroxyphenyl) acetic acid
626208-26-2Acetamide,2-amino-N-[(1R)-1-[(4-chlorophenyl)methyl]-2-oxo-2-[4-[2-[[[2-(2-thienyl)ethyl]amino]methyl]phenyl]-1-piperazinyl]ethyl]-
112984-60-86-Fluoro-1-methyl-4-oxo-7-(1-piperazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylic acid