1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → 3-{4-[6-(4-tert-butylphenylcarbamoyl)-1H-indol-2-yl]-3,5-dimethylphenyl}-propionic acid methyl ester

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-[4-(2-methoxycarbonylethyl)-2,6-dimethylphenyl]-1H-indole-6-carboxylic acid (100 mg, 280 μmol), 4-tert-butylaniline (45 μL, 290 μmol), EDCI (82 mg, 430 μmol) and HOBT (42 mg, 310 μmol) in THF (10 mL) was heated in a microwave apparatus at 150° C. for 3 h. The solvent was removed under reduced pressure and the residue was chromatographed using a 10-60% gradient of heptane/ethyl acetate to give 3-{4-[6-(4-tert-butylphenylcarbamoyl)-1H-indol-2-yl]-3,5-dimethylphenyl}-propionic acid methyl ester. MS (m/z) 484.3 (M+1); Retention time=1.50 min (Method 10).

Provenance & Evidence