反应详情

A mixture of 2-{[(3,5-dichloropyridin-4-yl)methyl]sulfanyl}-6-(trifluoromethyl)-pyrimidin-4-ol (see, e.g., Example 120; 1.0 g, 2.8 mmol) and a sodium methoxide solution (25% wt., 2.6 mL) in dimethyl sulfoxide (10 mL) was stirred at 70° C. overnight. Water (100 mL) was added, and the pH of the mixture was adjusted to around 6 with 2N HCl. The mixture was extracted with EtOAc (3×75 mL). The organic extracts were combined, dried over MgSO4, filtered, evaporated, and dried in vacuo to afford 2-{[(3-chloro-5-methoxypyridin-4-yl)methyl]sulfanyl}-6-(trifluoromethyl)pyrimidin-4-ol (912 mg. 93%); 1H NMR (500 MHz, DMSO-d6): δ 3.97 (s, 3H), 4.59 (s, 2H), 6.68 (s (br), 1H), 8.32 (s, 1H), 8.39 (s, 1H); M+ 352.

1. extractionThe mixture was extracted with EtOAc (3×75 mL)
2. dry with materialdried over MgSO4
3. filtrationfiltered
4. customevaporated
5. customdried in vacuo