Cesium carbonate → 4-[(1R)-1-[4-bromo-2-(3-methylpyrazol-1-yl)phenyl]-2,2,2-trifluoro-ethoxy]-6-chloro-pyrimidin-2-amine

Participants

Reaction Conditions

Reaction Steps

To a solution of (R)-1-(4-bromo-2-(3-methyl-1H-pyrazol-1-yl)phenyl)-2,2,2-trifluoroethanol (160 mg, 0.2 mmol, Intermediate 1) in dioxane (2 mL) was added 2-amino-4,6-dichloropyrimidine (100 mg, 0.16 mmol) and Cs2CO3 (48 μg, 0.16 mmol). The reaction was heated to 80° C. for 16 h, cooled to RT, and filtered. The solvent was removed in vacuo and the residue was dissolved in a mixture of CH2Cl2 and heptane, concentrated to half the volume, filtered, and concentrated again in vacuo. Purification via normal phase silica gel chromatography (CH2Cl2/Heptane) provided 4-[(1R)-1-[4-bromo-2-(3-methylpyrazol-1-yl)phenyl]-2,2,2-trifluoro-ethoxy]-6-chloro-pyrimidin-2-amine as an off-white solid.

Provenance & Evidence