(Diethylamino)sulfur trifluoride → HCID 57867598, compound

Participants

Reaction Steps

To a solution of 1-{2-[methyl(pyridin-3-yl)amino]pyridin-3-yl}-2,2-dipyridin-3-ylethanol (31 mg) in 1.5 mL of CH2Cl2 was added DAST (20 mg). After 2 h stirring at room temperature, then reaction was cooled to 0 C and quenched with saturated aqueous sodium bicarbonate. then partitioned between saturated aqueous sodium bicarbonate and CH2Cl2. The aqueous solution was extracted with CH2Cl2 (2×), and the combined organic solutions were dried (Na2SO4) and purified by reverse phase HPLC to give 6 mg of 3-(1-fluoro-2,2-dipyridin-3-ylethyl)-N-methyl-N-pyridin-3-ylpyridin-2-amine. 1H NMR (CDCl3) δ 8.48 (2H, t, J=4.9 Hz), 8.45 (1H, dd, J=4.9, 2.0 Hz), 8.33 (2H, d, 20.5 Hz), 8.22 (1H, d, J=3.9 Hz), 8.12 (1H, s), 7.55 (1H, dd, J=7.8, 1.7 Hz), 7.49 (1H, d, J=8.1 Hz), 7.46 (1H, dd, J=8.1, 1.7 Hz), 7.23-7.11 (4H, m), 7.02-7.00 (1H, m), 6.10 (1H, dd, J=46.4, 4.1 Hz), 4.32 (1H, dd, J=26.4, 5.1 Hz), 3.28 (3H, s).

Provenance & Evidence