benzyl 3-formyl-3-phenylpyrrolidine-1-carboxylate

1-((benzyloxy)carbonyl)-3-phenylpyrrolidine-3-carboxylic acid

3-benzyloxy-1-benzyloxycarbonyl-4-hydroxy-4-phenyl piperidine

benzyl 3-(benzylcarbamoyl)-3-phenylpyrrolidine-1-carboxylate

3-benzyl 1-tert-butyl 4,5-dihydro-1H-pyrrole-1,3-dicarboxylate