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4-(4-Aminophenyl)piperazine-1-carboxylic acid tert-butyl ester170911-92-9100 % similar tert-Butyl 4-(4-bromophenyl)piperazine-1-carboxylate352437-09-371 % similar 4-[4-(tert-Butoxycarbonyl)piperazin-1-yl]benzoic acid162046-66-467 % similar 4-P-Aminophenyl-1-boc-piperidine170011-57-164 % similar 4-(4-tert-Butoxycarbonylpiperazinyl)phenylboronic acid, pinacol ester470478-90-164 % similar tert-Butyl 4-(6-aminopyridin-3-yl)piperazine-1-carboxylate571188-59-560 % similar (S)-tert-Butyl 3-(4-aminophenyl)piperidine-1-carboxylate1171197-20-856 % similar 3-(4-Amino-phenyl)-piperidine-1-carboxylic acid tert-butyl ester875798-79-156 % similar 6-Amino-2-N-boc-1,2,3,4-tetrahydro-isoquinoline164148-92-955 % similar tert-Butyl 7-amino-3,4-dihydroisoquinoline-2(1H)-carboxylate171049-41-555 % similar 1,1-Dimethylethyl 4-(6-nitro-3-pyridinyl)-1-piperazinecarboxylate571189-16-755 % similar 1,1-Dimethylethyl 1-pyrrolidinecarboxylate86953-79-951 % similar N-Boc-N,N-bis(2-chloroethyl)amine118753-70-151 % similar 1-Boc-4-methylpiperazine53788-49-151 % similar N-Boc-piperazine57260-71-651 % similar tert-Butyl 4-benzylpiperazine-1-carboxylate57260-70-551 % similar 1-Boc-4-(2-carboxyphenyl)piperazine444582-90-551 % similar 4-(2-Amino-ethyl)-piperazine-1-carboxylic acid tert-butyl ester192130-34-050 % similar 4-Thiocarbamoyl-piperazine-1-carboxylic acid tert-butyl ester196811-66-250 % similar 1,1-Dimethylethyl 1-piperidinecarboxylate75844-69-850 % similar