(6-{3-[Bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-hydroxy-pyrrolidin-1-yl}-6-oxo-hexyl)-carbamic Acid Benzyl Ester → 6-Amino-1-{3-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-hydroxy-pyrrolidin-1-yl}-hexan-1-one

Participants

Reaction Steps

Compound 64 (5.9 g, 8.84 mmol) was dissolved in methanol (10 mL) and purged with argon. To the solution was added 10% palladium on carbon (0.6 g). The flask was purged with hydrogen 2 times and stirred further at room temperature under hydrogen atmosphere for overnight. The disappearance of the starting material was confirmed by the TLC. The reaction mixture was filtered through a pad of Celite and washed with methanol. The combined organic layer was concentrated under reduced pressure to afford compound 65 (4.3 g, 92%) as white solid. This was used as such for the next step.

Provenance & Evidence