反应详情

A mixture of EXAMPLE 31C (100 mg), (E)-styrylboronic acid (39 mg), and bis(triphenylphosphine)palladium(II) dichloride (8 mg) in 7:3:3 dimethoxyethane:ethanol: 1N aqueous LiOH (2 mL) was heated under microwave conditions (CEM Discover) at 130° C. for 30 minutes The mixture was quenched with 1 NHCl and extracted with ethyl acetate. The extract was dried (Na2SO4), filtered, and concentrated. The concentrate was purified by reverse phase HPLC (Zorbax SB-C18, 20-100% acetonitrile/water/0.1% trifluoroacetic acid) to afford the title compound. 1H NMR (400 MHz, DMSO-d6) δ 13.59 (br, 1H), 8.24 (m, 1H), 8.15 (d, 1H), 7.94 (m, 1H), 7.87 (m, 1H), 7.69 (d, 1H), 7.59 (m, 2H), 7.53 (m, 2H), 7.46 (m, 1H), 7.40 (m, 3H), 7.28 (m, 3H), 7.21 (m 1H), 6.87 (d, 1H), 4.87 (t, 2H), 4.17 (t, 2H), 2.34 (m, 2H).

1. customwas quenched with 1 NHCl
2. extractionextracted with ethyl acetate
3. dry with materialThe extract was dried (Na2SO4)
4. filtrationfiltered
5. concentrationconcentrated
6. customThe concentrate was purified by reverse phase HPLC (Zorbax SB-C18, 20-100% acetonitrile/water/0.1% trifluoroacetic acid)