反应详情

温度

70 °C

To a solution of EXAMPLE 149B (22 mg) in tetrahydrofuran (2 ml) and methanol (2 ml) was added 10% NaOH 0.3 ml. The reaction was heated at 70° C. for 24 hours, cooled, acidified with diluted aqueous HCl and concentrated. The residue was purified by RPHPLC to provide the title compound. 1H NMR (400 MHz, dimethyl sulfoxide-d6) δ 8.83 (s, 1H), 8.20-8.23 (m, 1H), 7.85-7.88 (m, 1H), 7.45-7.55 (m, 5H), 7.34-7.40 (m, 2H), 7.28-7.34 (m, 1H), 7.17 (td, J=7.36, 1.23 Hz, 1H), 7.04 (dd, J=7.52, 1.38 Hz, 1H), 6.85 (d, J=7.36 Hz, 1H), 6.75 (dd, J=8.90, 2.45 Hz, 1H), 6.37 (d, J=2.15 Hz, 1H), 4.84 (t, J=7.52 Hz, 2H), 4.15 (t, J=5.68 Hz, 2H), 2.63-2.87 (m, 1H), 2.25-2.41 (m, 2H), 1.02 (d, J=6.75 Hz, 3H), 0.96 (d, J=7.06 Hz, 3H).

1. temperaturecooled
2. concentrationconcentrated
3. customThe residue was purified by RPHPLC