purin,amine,piperazinyl,1-piperazin,1-piperazinyl
1-Piperazin
139653-75-11-Piperazinecarboxylic acid,4-[2-ethyl-9-(2,2,2-trifluoroethyl)-9H-purin-6-yl]-, 1,1-dimethylethyl ester
63422-71-9(D-)-alpha-[[(4-Ethyl-2,3-dioxo-1-piperazinyl) carbonyl]amino]-2-(4-hydroxyphenyl) acetic acid