反应详情

As described in Example 6B Step 2, to a solution of 1-{3-[6,7-bis(2-methoxyethoxy)quinazolin-4-ylthio]phenyl}-3-(5-tert-butylisoxazol-3-yl)urea in CH2Cl2 and MeOH was added 1.0 M HCl/Et2O solution (2 eq.), to afford 1-{3-[6,7-bis(2-methoxyethoxy)quinazolin-4-ylthio]phenyl}-3-(5-tert-butylisoxazol-3-yl)urea hydrochloride as solid (0.098 g, 40%). 1H NMR (300 MHz, DMSO-d6) δ 9.66 (s, 1H), 9.23 (s, 1H), 8.72 (s, 1H), 7.85 (s, 1H), 7.52 (d, 1H), 7.44 (t, 1H), 7.44 (s, 1H), 7.38 (s, 1H), 7.28 (d, 1H), 6.49 (s, 1H), 4.35 (m, 4H), 3.78 (m, 4H), 3.37 (s, 3H), 3.35 (s, 3H), 1.28 (s, 9H); LC-MS (ESI) m/z 568 (M+H)+.