((2R,3S)-1-Benzyl-3-hydroxy-pyrrolidin-2-yl)-acetic acid ethyl ester

((2R,3R)-3-(benzoyloxy)-1-benzylpyrrolidin-2-yl)methyl benzoate

(2R,3S)-N-benzyl-3-hydroxy-2-hydroxymethylpyrrolidine

(+)-(1R,5R)-2-oxa-6-azabicyclo[3.3.0]octan-3-one hydrochloride

ethyl 2-((3aR,6aR)-2-oxohexahydro-4H-furo[3,2-b]pyrrol-4-yl)acetate