[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][CH2:10][C@@H:9]1[C@@H:13]([OH:37])[C@@H:14]([N:22](CC1C=CC=CC=1)CC1C=CC=CC=1)[CH2:15][C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[H][H]>CO.[OH-].[OH-].[Pd+2]>[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][CH2:10][C@@H:9]1[C@@H:13]([OH:37])[C@@H:14]([NH2:22])[CH2:15][C:16]1[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=1)=[O:7])([CH3:4])([CH3:2])[CH3:3]Dissolve 2-(R)-(2-(S)-dibenzylamino-1-(S)-hydroxy-3-phenylpropyl)-pyrrolidine-1-carboxylic acid tert-butyl ester (0.75 g, 1.49 mmol) in methanol (20 mL). Add 20% palladium hydroxide on carbon (0.33 g) and stir 1 h under one atmosphere of hydrogen gas. Filter through filter agent and concentrate to give the title compound as a white foam (0.45 g, 93%).
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