2-[2-(2,4-Difluorophenyl)chroman-6-yloxy]-5-nitropyridine → 6-[2-(2,4-Difluorophenyl)chroman-6-yloxy]-pyridin-3-ylamine

Participants

Reaction Steps

6-[2-(2,4-Difluorophenyl)chroman-6-yloxy]-pyridin-3-ylamine was prepared as described for 5-amino-2-(2-phenylchroman-6-yloxy)pyridine in Example 26 starting from 845 mg of 2-[2-(2,4-difluorophenyl)chroman-6-yloxy]-5-nitropyridine (Example 69(d)). 1H NMR (400 MHz, d6-DMSO) δ: 7.58 (m, 1H), 7.51 (d, 1H, J 3.3 Hz), 7.30 (m, 1H), 7.15 (m, 1H), 7.05 (dd, 1H, J 8.3, 3.3 Hz), 6.84-6.73 (m, 3H), 6.70 (d, 1H, J 8.3 Hz), 5.27 (dd, 1H, J 10.3, 2.3 Hz), 5.01 (s, 2H), 2.97 (m, 1H), 2.73 (m, 1H), 2.13 (m, 1H), 2.03 (m, 1H).

Provenance & Evidence