piperazineacetamide,methyl,naphthalenyl,1-piperazin,piperazine
1-Piperazin
76610-92-9(6R,7S)-7-[[(2R,3S)-2-(4-Ethyl-2,3-dioxo-1-piperazinylcarbonylamino)-3-hydroxybutyryl]amino]-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
63422-71-9(D-)-alpha-[[(4-Ethyl-2,3-dioxo-1-piperazinyl) carbonyl]amino]-2-(4-hydroxyphenyl) acetic acid