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3-Ethynyl-1-azetidinecarboxylic acid tert-butyl ester287193-01-541 % similar 4-[(tert-Butoxy)carbonyl]piperazine-2-carboxylic acid128019-59-041 % similar (S)-4-N-Boc-piperazine-2-carboxylic acid848482-93-941 % similar 1,1-Dimethylethyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-piperidinecarboxylate1048970-17-740 % similar 1-Boc-piperidine-3-carboxaldehyde118156-93-740 % similar tert-Butyl 3-carbamoylpyrrolidine-1-carboxylate122684-34-840 % similar (R)-1-Boc-3-cyanopyrrolidine132945-76-740 % similar (S)-1-Boc-3-cyanopyrrolidine132945-78-940 % similar (3S)-1-[(tert-Butoxy)carbonyl]pyrrolidine-3-carboxylic acid140148-70-540 % similar 1,1-Dimethylethyl 3,3-difluoro-4-hydroxy-1-pyrrolidinecarboxylate1434141-81-740 % similar tert-Butyl 4-(3-hydroxypropyl)tetrahydro-1(2H)-pyridinecarboxylate156185-63-640 % similar [1-(tert-Butoxycarbonyl)piperidin-4-yl]acetic acid157688-46-540 % similar Hexahydro-pyrrolo[3,4-B]pyrrole-1-carboxylic acid tert-butyl ester185693-02-140 % similar 3-Bromo-4-oxo-piperidine-1-carboxylic acid tert-butyl ester188869-05-840 % similar tert-Butyl 3-fluoro-4-oxopiperidine-1-carboxylate211108-50-840 % similar tert-Butyl 4-carbamothioylpiperidine-1-carboxylate214834-18-140 % similar tert-Butyl 4-(2-Bromoacetyl)piperidine-1-carboxylate301221-79-440 % similar 1-Boc-3-cyanopyrrolidine476493-40-040 % similar 1-((tert-Butoxy)carbonyl)pyrrolidine-3-carboxylic acid59378-75-540 % similar (S)-1-Boc-2-isopropylpiperazine674792-05-340 % similar