piperazinecarboxylic,methyl,nitroethyl,ethyl,ester,1-piperazin,1-piperazinecarboxylic,piperazine
1-Piperazin
63422-71-9(D-)-alpha-[[(4-Ethyl-2,3-dioxo-1-piperazinyl) carbonyl]amino]-2-(4-hydroxyphenyl) acetic acid
899424-69-22H-1,4-Benzothiazine-6-carboxylic acid,3,4-dihydro-2-[4-(4-methoxyphenyl)-1-piperazinyl]-3-oxo-, methyl ester
104965-12-05-Pyrimidinecarbonitrile,2-[4-(4-amino-6,7-dimethoxy-2-quinazolinyl)-1-piperazinyl]-1,4-dihydro-4-oxo-, hydrochloride
1027327-15-67-(4-{[3-(2,6-Difluorophenyl)-5-methyl-1,2-oxazol-4-yl]carbonyl}- 1-piperazinyl)-6-fluoro-4-oxo-4H-[1,3]thiazeto[3,2-a]quinoline-3- carboxylic acid