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4-Boc-1-fmoc-2-piperazinecarboxylic acid183742-23-645 % similar 1-(1,1-Dimethylethyl) 2-borono-1-pyrrolidinecarboxylate149682-75-745 % similar tert-Butyl (2R,5S)-2,5-dimethylpiperazine-1-carboxylate309915-46-645 % similar (2S,5R)-2,5-Dimethyl-piperazine-1-carboxylic acid tert-butyl ester548762-66-945 % similar D-1-N-Boc-prolinamide70138-72-645 % similar Boc-hyp(bzl)-oh54631-81-145 % similar Boc-N-methyl-L-alanine16948-16-645 % similar Boc-N-methyl-D-alanine19914-38-645 % similar N-Boc-(2R,3R,4S)-dolaproine120205-50-745 % similar tert-Butyl 3,8-diazabicyclo[3.2.1]octane-8-carboxylate149771-44-844 % similar Boc-MeTyr-OH82038-34-444 % similar 3,6-Diazabicyclo[3.1.1]heptane-6-carboxylic acid tert-butyl ester869494-16-644 % similar 1,1-Dimethylethyl (2R,5R)-5-(hydroxymethyl)-2-methyl-1-piperazinecarboxylate1403898-64-544 % similar tert-Butyl N-methyl-N-(piperidin-3-yl)carbamate172478-01-244 % similar tert-Butyl methyl((3R)-piperidin-3-yl)carbamate309962-67-244 % similar tert-Butyl 2-carbamoylpiperidine-1-carboxylate388077-74-544 % similar Boc-L-pro-ome59936-29-744 % similar Boc-D-pro-ome73323-65-644 % similar (S)-1-N-Boc-piperidine-2-carboxamide78058-41-044 % similar Boc-N-methyl-L-valine45170-31-844 % similar