反应详情

8-Chloro-7-methoxy-2-(4-cyclobutylthiazol-2-yl)quinolin-4-ol 269b was synthesized from compound 268b (5.68 g, 1 eq.) as a beige solid in 84% yield, following the procedure as described for compound 218a (80° C. overnight). 1H NMR (DMSO-d6, 400 MHz): δ (ppm) 1.87-1.95 (m, 1H), 1.96-2.07 (m, 1H), 2.23-2.35 (m, 4H), 3.67-3.76 (m, 1H), 4.02 (s, 3H), 7.51 (s, 1H), 7.53 (d, J=9.30 Hz, 1H), 7.63 (s, 1H), 8.11 (d, J=9.30 Hz, 1H), 11.89 (br s, 1H); MS (ESI, EI+): m/z=347 (MH+).