Benzyl 5-{3-[(1S)-2-methoxy-1-methylethoxy]-5-[(triisopropylsilyl)oxy]phenyl}-1H-pyrrole-2-carboxylate → 5-{3-[(1S)-2-Methoxy-1-methylethoxy]-5-[(triisopropylsilyl)oxy]phenyl}-1H-pyrrole-2-carboxylic acid

Participants

Reaction Steps

Benzyl 5-{3-[(1S)-2-methoxy-1-methylethoxy]-5-[(triisopropylsilyl)oxy]phenyl}-1H-pyrrole-2-carboxylate (34.40 g, 64.0 mmol) synthesized in Example (106b) was dissolved in ethanol (320 mL), and a 10% palladium carbon catalyst (3.54 g) was added, followed by stirring for 2 hours under hydrogen atmosphere. The palladium carbon catalyst was removed by Celite filtration, and the solvent was distilled off under reduced pressure to afford the desired compound (27.31 g, yield 95%) as a white solid.

Provenance & Evidence