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N-Boc-3,4-dehydro-L-proline methyl ester74844-93-247 % similar 1-tert-Butyl 3-methyl piperazine-1,3-dicarboxylate129799-08-245 % similar 1-(1,1-Dimethylethyl) 3-methyl (3S)-1,3-piperazinedicarboxylate314741-39-445 % similar 1-(1,1-Dimethylethyl) 3-methyl (3R)-1,3-piperazinedicarboxylate438631-77-745 % similar 1,1-Dimethylethyl 2-oxo-1-pyrrolidinecarboxylate85909-08-642 % similar tert-Butyl 4-(2-methoxy-2-oxoethyl)piperidine-1-carboxylate175213-46-442 % similar 1,2-Bis(1,1-dimethylethyl) (2S)-4-oxo-1,2-pyrrolidinedicarboxylate166410-05-542 % similar tert-Butyl 2-oxopiperidine-1-carboxylate85908-96-941 % similar L-Glutamic acid 5-tert-butyl methyl ester hydrochloride6234-01-141 % similar tert-Butyl 6-Oxa-3-azabicyclo(3.1.0)hexane-3-carboxylate114214-49-241 % similar tert-Butyl 3-((methoxycarbonyl)methyl) azetidine-1-carboxylate497160-14-241 % similar Methyl cis-4-(boc-amino)cyclohexanecarboxylate146307-51-940 % similar 1-(1,1-Dimethylethyl) 2-borono-1-pyrrolidinecarboxylate149682-75-740 % similar 1-Boc-3-(amino)azetidine193269-78-240 % similar (S)-(-)-1-tert-Butoxycarbonyl-3-aminopyrrolidine147081-44-540 % similar (R)-tert-Butyl 3-aminopyrrolidine-1-carboxylate147081-49-040 % similar tert-Butyl 3-aminopyrrolidine-1-carboxylate186550-13-040 % similar tert-Butyl N-methyl-N-(4-oxocyclohexyl)carbamate400899-84-540 % similar tert-Butyl 2,4-dioxopiperidine-1-carboxylate845267-78-940 % similar 1-tert-Butyl 4-ethyl piperidine-1,4-dicarboxylate142851-03-439 % similar