tert-Butyl 2-methylpiperazine-1-carboxylate120737-78-2100 % similar 1,1-Dimethylethyl (2S)-2-methyl-1-piperazinecarboxylate169447-70-5100 % similar 1,1-Dimethylethyl (2S)-2-(2-methylpropyl)-1-piperazinecarboxylate674792-06-467 % similar 1,1-Dimethylethyl (2R)-2-ethyl-1-piperazinecarboxylate393781-70-966 % similar 1-Boc-2-piperazinecarboxylic acid1214196-85-663 % similar 1-(1,1-Dimethylethyl) 2-methyl 1,2-piperazinedicarboxylate129799-15-161 % similar tert-Butyl 2-methyl-4-oxopiperidine-1-carboxylate190906-92-457 % similar 1,1-Dimethylethyl (2S)-2-(phenylmethyl)-1-piperazinecarboxylate169447-86-356 % similar 1,1-Dimethylethyl 2-(phenylmethyl)-1-piperazinecarboxylate481038-63-556 % similar N-Boc-piperazine57260-71-655 % similar 1,1-Dimethylethyl (2R,5R)-5-(hydroxymethyl)-2-methyl-1-piperazinecarboxylate1403898-64-554 % similar tert-Butyl 1,4-diazepane-1-carboxylate112275-50-050 % similar tert-Butyl 3,8-diazabicyclo[3.2.1]octane-8-carboxylate149771-44-849 % similar Hexahydropyrrolo[3,4-C]pyrrole-2-carboxylic acid tert-butyl ester141449-85-648 % similar (1S,4S)-2-Boc-2,5-diazabicyclo[2.2.1]heptane113451-59-547 % similar tert-Butyl 3-methylpiperazine-1-carboxylate120737-59-947 % similar 4-N-Boc-4-N-methyl-aminopiperidine108612-54-047 % similar 3-(N-Boc-methylaminomethyl)azetidine1053655-53-045 % similar 1,1-Dimethylethyl (2S)-2-formyl-1-pyrrolidinecarboxylate69610-41-944 % similar 1,1-Dimethylethyl 1-pyrrolidinecarboxylate86953-79-944 % similar