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tert-Butyl 3-methyl-4-oxopiperidine-1-carboxylate181269-69-2100 % similar 3-Bromo-4-oxo-piperidine-1-carboxylic acid tert-butyl ester188869-05-868 % similar 1,1-Dimethylethyl 3-fluoro-4-oxo-1-piperidinecarboxylate211108-50-868 % similar 1-tert-Butyl 3-methyl 4-oxopiperidine-1,3-dicarboxylate161491-24-361 % similar 1-(1,1-Dimethylethyl) 3-ethyl 4-oxo-1,3-piperidinedicarboxylate98977-34-559 % similar tert-Butyl 4-oxopiperidine-1-carboxylate79099-07-355 % similar 1-Boc-4-methylenepiperidine159635-49-154 % similar N-Boc-hexahydro-1H-azepin-4-one188975-88-454 % similar tert-Butyl 3-methylpiperazine-1-carboxylate120737-59-953 % similar (S)-4-N-Boc-2-methylpiperazine147081-29-653 % similar (R)-4-Boc-2-methylpiperazine163765-44-453 % similar 3-Oxopyrrolidine-1-carboxylic acid tert-butyl ester101385-93-753 % similar (S)-3-Hydroxypyrrolidine-1-carboxylic acid tert-butyl ester101469-92-552 % similar 3-Hydroxypyrrolidine-1-carboxylic acid tert-butyl ester103057-44-952 % similar tert-Butyl (3R)-3-hydroxypyrrolidine-1-carboxylate109431-87-052 % similar (S)-(-)-1-tert-Butoxycarbonyl-3-aminopyrrolidine147081-44-552 % similar (R)-tert-Butyl 3-aminopyrrolidine-1-carboxylate147081-49-052 % similar tert-Butyl 3-aminopyrrolidine-1-carboxylate186550-13-052 % similar (S)-1-N-Boc-3-isopropylpiperazine475272-54-952 % similar 1,1-Dimethylethyl 1-pyrrolidinecarboxylate86953-79-951 % similar