1-Piperazinecarboxylic acid, 4-[[4-(2-methoxy-2-oxoethyl)phenyl]methyl]-2-methyl-, 1,1-dimethylethyl ester, (2S)-
1,1-Dimethylethyl (2S)-4-[[4-(2-methoxy-2-oxoethyl)phenyl]methyl]-2-methyl-1-piperazinecarboxylate
(S)-tert-Butyl 4-(4-(2-methoxy-2-oxoethyl)benzyl)-2-methylpiperazine-1-carboxylate
1-Piperazinecarboxylic acid 4-[[4-(2-methoxy-2-oxoethyl)phenyl]methyl]-2-methyl-, 1,1-dimethylethyl ester (2S)-