反应详情

Starting from the compound 183 and following the procedure described above for the synthesis of compound 159 (scheme 30, step 4, example 121), title compound 184 was obtained in 66% yield. 1H NMR (400 MHz, DMSO-d6) δ ppm: 8.45(d, J=5.6 Hz, 1H), 8.33(s, 1H), 8.00(s, 1H), 7.85-7.75(m, 1H), 7.69(s, 1H), 7.39(t, J=8.4 Hz, 1 H), 7.35-7.28(m, 1H), 7.28-7.22(m, 1H), 7.22(d, J=7.6 Hz, 1H), 6.97(d, J=8.4 Hz, 1H), 6.89(t, J=7.6 Hz, 1H), 6.57(d, J=5.6 Hz, 1H), 4.19(t, J=6.4 Hz, 2H), 3.82(s, 2H), 3.77(s, 3H), 2.88(t, J=6.4 Hz, 2H), 2.28(s, 3H).