Hydrochloric Acid → HCID 69673052, compound

Participants

Reaction Conditions

Reaction Steps

Bromine (0.13 mL, 2.6 mmol) was added to a solution of ethyl 6-cyclobutyl-2-(trifluoromethyl)pyrimidine-4-carboxylate (0.65 g, 2.4 mmol, from Step B) in acetic acid (2.0 mL) and the reaction was heated to 80° C. for one hour. The mixture was concentrated and the resulting oil was dissolved in THF (8.0 mL) and cooled to 0° C. A solution of lithium hydroxide, monohydrate (0.20 g, 4.7 mmol) in water (2.0 mL) was added. After stirring for 20 minutes, 1N HCl was added to achieve pH 4. Additional water was introduced and the product was extracted with six portions of 10% isopropanol in chloroform. The combined extracts were dried over sodium sulfate, filtered and concentrated to afford product which was used without further purification (0.64 g, 80%). H NMR (400 MHz, dmso) δ 8.27 (s, 1H), 3.17-2.97 (m, 2H), 2.92-2.71 (m, 2H), 2.34 (dtt, J=10.9, 9.1, 6.9 Hz, 1H), 1.84 (dtt, J=11.0, 8.6, 5.6 Hz, 1H); LCMS (M+H)+: 324.9, 326.7.

Provenance & Evidence