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(E)-Ethyl 3-(pyrrolidin-1-yl)acrylate65651-80-133 % similar 1-Boc-3-oxopiperazine76003-29-733 % similar 1,1-Dimethylethyl 1-pyrrolidinecarboxylate86953-79-933 % similar tert-Butyl (3S)-3-ethylpiperazine-1-carboxylate928025-56-333 % similar 1-tert-Butyl 4-ethyl 3-oxopiperidine-1,4-dicarboxylate71233-25-533 % similar 1-(1,1-Dimethylethyl) 3-ethyl 4-oxo-1,3-piperidinedicarboxylate98977-34-533 % similar Ethyl 5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-A]pyrazine-3-carboxylate723286-68-833 % similar Benzyl 3-oxopiperazine-1-carboxylate78818-15-233 % similar (R)-Piperidine-3-carboxylic acid ethyl ester hydrochloride37675-19-733 % similar tert-Butyl 4,7-diazaspiro(2.5)octane-4-carboxylate674792-08-633 % similar tert-Butyl 4,7-diazaspiro(2.5)octane-7-carboxylate886766-28-533 % similar Ethyl 2-piperidinecarboxylate15862-72-333 % similar Ethyl 2-piperidinecarboxylate35677-84-033 % similar Ethyl 2-oxopyrrolidine-3-carboxylate36821-26-833 % similar 1-(4-Ethoxyphenyl)piperazine46415-29-633 % similar Ethyl sorbate2396-84-132 % similar Ethyl 2-hydrazinyl-2-oxoacetate35196-48-632 % similar Ethyl 2-chloro-2,2-difluoroacetate383-62-032 % similar N,N-Dimethyl-2-(piperazin-1-yl)acetamide39890-43-232 % similar 1-((Pyrrolidine-1-carbonyl)methyl)piperazine39890-45-432 % similar