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tert-Butyl (3S)-3-ethylpiperazine-1-carboxylate928025-56-342 % similar 4-Benzyloxycarbonylamino-piperidine-1,4-dicarboxylic acid mono-tert-butyl ester288154-16-541 % similar tert-Butyl (R)-3-formylpyrrolidine-1-carboxylate191347-94-141 % similar (S)-tert-Butyl 3-formylpyrrolidine-1-carboxylate191348-04-641 % similar (+-)-1-(tert-Butoxycarbonyl)pyrrolidine-3-carboxaldehyde59379-02-141 % similar tert-Butyl 4,7-diazaspiro(2.5)octane-4-carboxylate674792-08-641 % similar 1-Boc-azetidine-3-ylmethanol142253-56-341 % similar cis-tert-Butyl 5-oxohexahydrocyclopenta[c]pyrrole-2(1H)-carboxylate146231-54-141 % similar N-Boc-hexahydro-5-oxocyclopenta[C]pyrrole148404-28-841 % similar N-Boc-(ethylamino)acetaldehyde315718-06-041 % similar 1-Boc-3-(aminomethyl)azetidine325775-44-841 % similar 1,1-Dimethylethyl 3-acetyl-1-azetidinecarboxylate870089-49-941 % similar 4-(4-Aminophenyl)piperazine-1-carboxylic acid tert-butyl ester170911-92-941 % similar (R)-3-Hydroxymethyl-piperazine-1-carboxylic acid tert-butyl ester278788-66-241 % similar 4-N-Boc-2-hydroxymethylpiperazine301673-16-541 % similar 1,1-Dimethylethyl (3S)-3-(hydroxymethyl)-1-piperazinecarboxylate314741-40-741 % similar tert-Butyl 4-(4-bromophenyl)piperazine-1-carboxylate352437-09-341 % similar 1-((tert-Butoxy)carbonyl)-3-methylpiperidine-3-carboxylic acid534602-47-641 % similar tert-Butyl 3-(hydroxymethyl)pyrrolidine-1-carboxylate114214-69-640 % similar tert-Butyl (3R)-3-(hydroxymethyl)pyrrolidine-1-carboxylate138108-72-240 % similar