[CH3:1][O:2][CH2:3][CH2:4][N:5]([CH2:10][C:11]([O:13]CC1C=CC=CC=1)=[O:12])[CH2:6][CH2:7][O:8][CH3:9]>CO.[Pd]>[CH3:1][O:2][CH2:3][CH2:4][N:5]([CH2:10][C:11]([OH:13])=[O:12])[CH2:6][CH2:7][O:8][CH3:9]A solution of Example 81A (19.4 g; 69 mmol) and 10% Pd/C (3.5 g) in methanol (150 mL) at room temperature was stirred under 4 atm of H2 for 17 hours, filtered through diatomaceous earth (Celite®), and concentrated to provide the desired product.
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