Water → HCID 42630777, compound

Participants

Reaction Steps

A solution of trimethylaluminium (2 M in toluene, 1.1 mL, 2.2 mmol) was added dropwise (exothermic) to a solution of 2,2,2-trifluoroethylamine (250 mg, 2.2 mmol) in dioxane (10 mL) and the resulting mixture was stirred at room temperature for 1 h. Then a solution of 6-[3-(3,4-difluoro-phenyl)-5-methyl-isoxazol-4-ylmethoxy]-nicotinic acid methyl ester (200 mg, 0.56 mmol) in dioxane (10 mL) was added. The resulting mixture was then heated at 85-95° C. for 16 h and then cooled to room temperature and then poured into water and extracted with ethyl acetate which was then washed with brine, dried over sodium sulfate and evaporated. Purification by chromatography (SiO2, heptane:ethyl acetate=95:5 to 1:1) afforded the title compound (150 mg, 63%) which was obtained as a white solid. MS: m/e=482.2 [M+H]′.

Provenance & Evidence