反应详情

Following the procedures described above for the synthesis of compound 119 (Scheme 1, Example 1, steps 4 and 5) but replacing compound 117 with the compound 153, and TFA for HCl/dioxane, title compound 154 was obtained as a beige solid. 1H NMR: (DMSO) δ (ppm): 9.42 (s, 1H), 8.72 (d, J=2.3 Hz, 1H), 8.05 (dd, J=8.8, 2.3 Hz, 1H), 7.65 (d, J=6.5 Hz, 1H), 7.13 (d, J=7.8 Hz, 1H), 6.95 (td, J=7.6, 1.4 Hz, 1H), 6.77 (dd, J=8.0, 1.2 Hz, 1H), 6.58 (td, J=7.5, 1.4 Hz, 1H), 6.49 (d, J=8.8 Hz, 1H), 4.87 (s, 2H), 4.17 (q, J=5.7 Hz, 1H), 4.08 (t, J=4.6 Hz, 2H), 3.67 (q, J=5.7 Hz, 1H), 3.57-3.55 (m, 1H), 3.50-3.47 (m, 3H). 3.3 (m, overlap with water, 1H), 3.25 (s, 3H), 2.22-2.14 (m, 1H), 1.96-1.88 (m, 1H). LRMS (ESI): (calc.) 399.2; (obt.) 400.3 (M+H)+.