反应详情

Compound 4c was synthesized from 3c in 98% yield using the procedure described for 4a. 1H NMR (DMSO-d6): δ 12.0 (br s, 1H), 7.39 (m, 2H), 7.29 (m, 3H), 7.18 (d, J=8.5 Hz, 1H), 6.80 (d, J=8.5 Hz, 1H), 3.64 (s, 3H), 3.18 (s, 3H), 2.78 (t, J=7.5 Hz, 2H), 2.50 (t, J=7.5 Hz, 2H).