反应详情

A mixture of EXAMPLE 135B (30 mg), 2-(trifluoromethyl)phenylboronic acid (15.3 mg), tetrakis(triphenylphosphine)palladium(0) (3.1 mg) and cesium fluoride (16.3 mg) in dimethoxyethane (1.4 ml) and methanol (0.7 ml) was heated at 100° C. in a microwave reactor (CEM Discover) for 30 minutes and was concentrated. The residue was purified by flash chromatography, eluting with 0%-100% dichloromethane in hexane, to provide ethyl 5-(benzyloxy)-1-(3-(naphthalen-1-yloxy)propyl)-3-(2-(trifluoromethyl)phenyl)-1H-indole-2-carboxylate. This ester was hydrolyzed with aqueous NaOH in tetrahydrofuran and methanol to provide the title compound. 1H NMR (500 MHz, dimethyl sulfoxide-d6) δ 12.67 (s, 1H), 8.04-8.40 (m, 1H), 7.87 (d, J=7.32 Hz, 1H), 7.82 (d, J=7.63 Hz, 1H), 7.69 (t, J=7.32 Hz, 1H), 7.57-7.65 (m, 2H), 7.44-7.56 (m, 3H), 7.26-7.41 (m, 7H), 6.97 (dd, J=9.00, 2.29 Hz, 1H), 6.85 (d, J=7.93 Hz, 1H), 6.55 (d, J=2.14 Hz, 1H), 4.83-4.98 (m, 4H), 4.05-4.24 (m, 2H), 2.28-2.40 (m, 2H).

1. concentrationwas concentrated
2. customThe residue was purified by flash chromatography
3. washeluting with 0%-100% dichloromethane in hexane