Benzyl 2-[4-((E)-2-methoxycarbonylvinyl)-2,6-dimethylphenyl]-1H-indole-6-carboxylate → 2-[4-(2-Methoxycarbonylethyl)-2,6-dimethylphenyl]-1H-indole-6-carboxylic acid

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Reaction Steps

A mixture of benzyl 2-[4-((E)-2-methoxycarbonylvinyl)-2,6-dimethylphenyl]-1H-indole-6-carboxylate (950 mg, 2.16 mmol) and 10% palladium on carbon (95 mg) in 100 mL of 1:1 ethyl acetate/ethanol was stirred under a hydrogen balloon for 18 h. The catalyst was filtered through Celite and the filtrate was removed under reduced pressure to leave the title compound. MS: m/z 352.2 (M+1); Retention time=1.35 min (Method 10).

Provenance & Evidence