反应详情

tert-Butyl 7-(4-((5-fluoropyridin-2-yl)methoxy)-2-oxopyridin-1(2H)-yl)-5-methyl-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate (415 mg, 0.823 mmol) was deprotected and converted to the dihydrochloride according to procedure of Example 30 (steps e and g) to provide the title compound (328 mg, 84%) as a white solid: mp 174-180° C.; 1H NMR (500 MHz, CD3OD) δ 8.70 (s, 1H), 8.00 (dt, J=8.4, 2.8 Hz, 1H), 7.91-7.88 (m, 2H), 7.63 (d, J=8.4 Hz, 1H), 7.55 (s, 1H), 7.11 (dd, J=8.3, 1.7 Hz, 1H), 6.69 (dd, J=7.5, 2.7 Hz, 1H), 6.45 (d, J=2.6 Hz, 1H), 5.46 (s, 2H), 4.49 (s, 2H), 3.75 (s, 3H), 3.68 (t, J=6.1 Hz, 2H), 3.22 (t, J=6.1 Hz, 2H); ESI MS m/z 405 [M+H]+; HPLC (Method B) 95.5% (AUC), tR=10.9 min.