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5-Oxo-L-proline 1,1-dimethylethyl ester35418-16-7100 % similar Methyl pyroglutamate4931-66-264 % similar Methyl 5-oxopyrrolidine-2-carboxylate54571-66-364 % similar N-(tert-Butoxycarbonyl)-L-glutamic acid 1-tert-butyl ester24277-39-263 % similar L-Pyroglutamic acid ethyl ester7149-65-761 % similar Dimethyl N-(tert-Butoxycarbonyl)-L-glutamate59279-60-652 % similar Pyroglutamic acid149-87-150 % similar (+)-Pyroglutamic acid4042-36-850 % similar L-Pyroglutamic acid98-79-350 % similar trans-4-tert-Butoxycarbonyl-cyclohexane carboxylic acid1021273-74-448 % similar 5-(1,1-Dimethylethyl) hydrogen N-[(1,1-dimethylethoxy)carbonyl]-L-glutamate13726-84-647 % similar (R)-4-Amino-5-(tert-butoxy)-5-oxopentanoic acid25456-76-247 % similar 1-(1,1-Dimethylethyl) hydrogen L-glutamate45120-30-747 % similar Fasoracetam110958-19-545 % similar N2-[(1,1-Dimethylethoxy)carbonyl]-N-9H-xanthen-9-yl-L-glutamine55260-24-744 % similar Boc-L-glutamine13726-85-744 % similar 1-(Phenylmethyl) hydrogen N-((1,1-dimethylethoxy)carbonyl)-L-glutamate30924-93-744 % similar tert-Butyl (2R)-5-oxopyrrolidine-2-carboxylate205524-46-543 % similar Boc-D-glu-otbu73872-71-643 % similar tert-Butyl Piperidine-4-carboxylate138007-24-643 % similar