反应详情

Following the procedure described above for the compound 28a (example 8, step 2) but replacing amine 9 for amine 18, title compound 28c was obtained in 24% yield. 1H NMR (DMSO-d6) δ (ppm): 10.58 (s, 1H), 9.62 (s, 1H), 8.49 (d, 1H), 8.05 (dd, 1H), 7.85 (m, 2H), 7.77 (s, 1H), 7.48 (t, 1H), 7.41 (m, 2H), 7.05 (m, 2H), 6.90 (m, 2H) 6.63 (dd, 1H), 3.88 (s, 3H), 3.84 (s, 3H), 3.63 (s, 2H). MS (m/z): 531.8 (M+H).