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(3aS,4R,6aR)-4-(hydroxydiphenylmethyl)-2,2-dimethyl-tetrahydro-[1,3]dioxolo[4,5-c]pyrrol-5-ol

methyl 2-(diphenylmethylene)pyrrolidine-1-carboxylate

methyl (5-hydroxy-4-oxo-5,5-diphenylpentyl)carbamate

3-(diphenylhydroxymethyl)morpholine