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1,1-Dimethylethyl 5-oxo-2-azabicyclo[2.2.1]heptane-2-carboxylate198835-06-2100 % similar (1S,4S)-2-Boc-2,5-diazabicyclo[2.2.1]heptane113451-59-553 % similar tert-Butyl 2,5-diazabicyclo[2.2.1]heptane-2-carboxylate hydrochloride134003-84-253 % similar 2,5-Diaza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl ester198989-07-053 % similar 1,1-Dimethylethyl (2S,4R)-4-hydroxy-2-(hydroxymethyl)-1-pyrrolidinecarboxylate61478-26-051 % similar tert-Butyl 4-(2-Bromoacetyl)piperidine-1-carboxylate301221-79-446 % similar tert-Butyl (2S)-2-(hydroxymethyl)azetidine-1-carboxylate161511-85-945 % similar tert-Butyl 2-(hydroxymethyl)azetidine-1-carboxylate174346-82-845 % similar 3,6-Diazabicyclo[3.1.1]heptane-6-carboxylic acid tert-butyl ester869494-16-645 % similar (2S,4S)-N-Boc-4-methylpyrrolidine-2-carboxylic acid364750-81-245 % similar 1,2-Bis(1,1-dimethylethyl) (2S)-4-oxo-1,2-pyrrolidinedicarboxylate166410-05-544 % similar (2S,4R)-tert-Butyl 2-(hydroxymethyl)-4-(methylsulfonyloxy)pyrrolidine-1-carboxylate148017-07-644 % similar cis-tert-Butyl 5-oxohexahydrocyclopenta[c]pyrrole-2(1H)-carboxylate146231-54-144 % similar N-Boc-hexahydro-5-oxocyclopenta[C]pyrrole148404-28-844 % similar N-Boc-nortropinone185099-67-644 % similar 1,1-Dimethylethyl 3-acetyl-1-azetidinecarboxylate870089-49-944 % similar tert-Butyl 6-Oxa-3-azabicyclo(3.1.0)hexane-3-carboxylate114214-49-244 % similar 2-((2R)-1-((tert-Butoxy)carbonyl)pyrrolidin-2-yl)acetic acid101555-60-644 % similar N-Boc-cis-4-hydroxy-D-proline135042-12-544 % similar 1-(1,1-Dimethylethyl) (2S,4R)-4-hydroxy-1,2-pyrrolidinedicarboxylate13726-69-744 % similar