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4-Thiocarbamoyl-piperazine-1-carboxylic acid tert-butyl ester196811-66-2100 % similar 1,1-Dimethylethyl 1-pyrrolidinecarboxylate86953-79-961 % similar tert-Butyl 4-carbamothioylpiperidine-1-carboxylate214834-18-160 % similar 1-Boc-4-methylpiperazine53788-49-160 % similar N-Boc-piperazine57260-71-660 % similar 1,1-Dimethylethyl 1-piperidinecarboxylate75844-69-859 % similar 4-(2-Amino-ethyl)-piperazine-1-carboxylic acid tert-butyl ester192130-34-058 % similar N-Boc-diethanolamine103898-11-956 % similar N-Boc-N,N-bis(2-chloroethyl)amine118753-70-156 % similar tert-Butyl 4-oxopiperidine-1-carboxylate79099-07-356 % similar 1-Boc-4-methyl-piperidin-4-OL406235-30-155 % similar tert-Butyl 4-aminopiperidine-1-carboxylate87120-72-755 % similar 1-(tert-Butoxycarbonyl)piperidine-4-carboxamide91419-48-655 % similar 1-Boc-4-methylenepiperidine159635-49-154 % similar tert-Butyl 1,4-diazepane-1-carboxylate112275-50-054 % similar tert-Butyl 4-(2-hydroxyethyl)piperazine-1-carboxylate77279-24-454 % similar tert-Butyl 4,4-difluoropiperidine-1-carboxylate281652-10-653 % similar 1-Boc-4-(aminomethyl)piperidine144222-22-053 % similar 1-Boc-4-methylaminopiperidine147539-41-153 % similar tert-Butyl 4-hydroxypiperidine-1-carboxylate109384-19-251 % similar