反应详情

6-(5-Aminopyridin-2-yloxy)-2-phenylchroman-4-one was prepared as described for 5-amino-2-(2-phenylchroman-6-yloxy)pyridine in Example 26 starting from 100 mg of 6-(5-nitropyridin-2-yloxy)-2-phenylchroman-4-one (Example 6). 1H NMR (400 MHz, CD3OD) δ: 7.62 (d, 1H, J 3.0 Hz), 7.51-7.49 (m, 2H), 7.42-7.33 (m, 3H), 7.25-7.18 (m, 3H), 7.06 (d, 1H, J 8.8 Hz), 6.76 (d, 1H, J 8.6Hz), 5.50 (dd, 1H, J 13.0, 2.9 Hz), 3.08 (dd, 1H, −17.0, 13.0 Hz), 2.82 (dd, 1H, J −17.0, 2.9 Hz).