反应详情

Starting from the compound 199 and following the procedure described above for the compound 155a (scheme 28, example 109), title compound 200 was obtained in 3% yield. 1H NMR (400 MHz, DMSO-d6) δ ppm: 12.38 (s, 1H), 11.74 (s, 1H), 9.94 (s, 1H), 8.46 (d, 1H, J=5.3 Hz), 7.81 (s, 1H), 7.72 (d, 2H, J=9.0 Hz), 7.69 (dd, 2H, J=6.7/1.8 Hz), 7.34-7.27 (m, 7H), 6.86 (dd, 2H, J=6.7/1.8 Hz), 6.61 (d, 1H, J=5.5 Hz), 3.82 (s, 2H). LRMS (M+1) 512.1 (100%).