4-Acetylpyridine → 1-(Pyridin-4-yl)-1-(2-(4-(trifluoromethyl)phenyl)thiazol-5-yl)ethanol

関与物質

反応条件

反応手順

To a stirred solution of DIPA (0.09 mL, 0.000655 mmol) in THF (7 mL) at −78° C. was added n-BuLi (0.54 mL, 0.000873 mmol) and the mixture stirred at 0° C. for 30 min. After the reaction mixture was cooled to −78° C., a solution of 2-(4-(trifluoromethyl)phenyl)thiazole (0.1 g, 0.000436 mmol) in THF (2 mL) was added dropwise over 30 min 1-(Pyridin-4-yl)ethanone (0.05 mL, 0.000480 mmol) in THF (2 mL) was then added and the reaction mixture was stirred for an additional 1 hour at −78° C. The work up and purification was done as described in Example 23, Step 2, to provide 1-(pyridin-4-yl)-1-(2-(4-(trifluoromethyl)phenyl)thiazol-5-yl)ethanol (0.12 g, 80%) as off-white solid in 99% HPLC purity. 1H NMR (400 MHz, DMSO-d6): δ 8.52 (dd, 2H), 8.07 (d, 2H), 7.90 (s, 1H), 7.80 (d, 2H), 7.50 (dd, 2H), 6.71 (s, 1H), 1.94 (s, 3H); LC-MS m/z calculated for [M+H]+ 351.07. found 351.1.

情報源と証拠