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Ethyl 3-oxo-1-(phenylmethyl)-4-piperidinecarboxylate39514-19-742 % similar tert-Butyl 2-oxo-7-azaspiro[3.5]nonane-7-carboxylate203661-69-242 % similar 4-Oxo-piperidine-3-carboxylic acid ethyl ester67848-59-342 % similar 1-Boc-4-[methoxy(methyl)carbamoyl]piperidine139290-70-342 % similar Ethyl 1-benzyl-4-oxopiperidine-3-carboxylate hydrochloride1454-53-142 % similar tert-Butyl 3-carbamoylpyrrolidine-1-carboxylate122684-34-842 % similar (R)-1-Boc-3-cyanopyrrolidine132945-76-742 % similar (S)-1-Boc-3-cyanopyrrolidine132945-78-942 % similar (3S)-1-[(tert-Butoxy)carbonyl]pyrrolidine-3-carboxylic acid140148-70-542 % similar 1-Boc-3-cyanopyrrolidine476493-40-042 % similar 1-((tert-Butoxy)carbonyl)pyrrolidine-3-carboxylic acid59378-75-542 % similar (3R)-1-[(tert-Butoxy)carbonyl]pyrrolidine-3-carboxylic acid72925-16-742 % similar 1-Boc-4-(4-fluoro-phenylamino)-piperidine288573-56-841 % similar 1-Boc-4-(4-bromo-phenylamino)-piperidine443998-65-041 % similar 1-(tert-Butoxycarbonyl)-3,3-dimethyl-4-oxopiperidine324769-06-441 % similar 1-tert-Butyl 3-methyl azetidine-1,3-dicarboxylate610791-05-441 % similar 1,1-Dimethylethyl 9-oxo-3-azaspiro[5.5]undecane-3-carboxylate873924-08-441 % similar 4-P-Aminophenyl-1-boc-piperidine170011-57-141 % similar Ethyl 4-amino-1-piperidinecarboxylate58859-46-441 % similar Ethyl 4-hydroxypiperidine-1-carboxylate65214-82-641 % similar