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1-Boc-L-azetidine-2-carboxylic acid51077-14-643 % similar 1,1-Dimethylethyl (2S)-2-formyl-1-pyrrolidinecarboxylate69610-41-943 % similar N-(tert-Butoxycarbonyl)-D-prolinal73365-02-343 % similar tert-Butyl 4-aminopiperidine-1-carboxylate87120-72-742 % similar tert-Butyl (2S)-2-carbamothioylpyrrolidine-1-carboxylate101410-18-842 % similar (1S,4S)-2-Boc-2,5-diazabicyclo[2.2.1]heptane113451-59-542 % similar tert-Butyl 2-methylpiperazine-1-carboxylate120737-78-242 % similar tert-Butyl 2,5-diazabicyclo[2.2.1]heptane-2-carboxylate hydrochloride134003-84-242 % similar 1,1-Dimethylethyl (2S)-2-methyl-1-piperazinecarboxylate169447-70-542 % similar (R)-1-N-Boc-2-methylpiperazine170033-47-342 % similar tert-Butyl 2-methyl-4-oxopiperidine-1-carboxylate190906-92-442 % similar 1,1-Dimethylethyl 5-oxo-2-azabicyclo[2.2.1]heptane-2-carboxylate198835-06-242 % similar 2,5-Diaza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl ester198989-07-042 % similar Azetidine-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester255882-72-542 % similar 1-Piperidinecarboxylicacid,2-methyl-4-oxo-,1,1-dimethylethylester,(2R)-(9ci)790667-43-542 % similar 1,1-Dimethylethyl 1-pyrrolidinecarboxylate86953-79-941 % similar 1-tert-Butoxycarbonyl-4-piperidinecarboxaldehyde137076-22-341 % similar tert-Butyl N-(3-aminopropyl)-N-methylcarbamate150349-36-341 % similar 4-(2-Amino-ethyl)-piperazine-1-carboxylic acid tert-butyl ester192130-34-041 % similar 1-Boc-3-(amino)azetidine193269-78-241 % similar