Pyrazole → HCID 66879745, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 0.24 g of 2-(3-fluoropyridin-4-yl)-5-(trifluoromethyl)benzoxazole, 0.14 g of pyrazole, 0.69 g of potassium carbonate and 4 ml of DMF was stirred while heating at 50° C. for two hours. Water was added to the reaction mixture, followed by extraction with ethyl acetate twice. The combined organic layers were washed with a saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 0.22 g of 2-[3-(pyrazole-1-yl)pyridin-4-yl]-5-(trifluoromethyl)benzoxazole (hereinafter, referred to as “active compound 58”).

Provenance & Evidence