Hydrochloric Acid → (S)-3-[4-(2-amino-6-{1-[2-(6-cyanopyridin-3-yl)-phenyl]-2,2,2-trifluoro-ethoxy}-pyrimidin-4-yl)-phenyl]-2-tert-butoxycarbonylamino-propionic acid

Participants

Reaction Conditions

Reaction Steps

A mixture of 5-[2-(2,2,2-trifluoro-1-hydroxy-ethyl)-phenyl]-pyridine-2-carbonitrile (46 mg, 0.165 mmol), (S)-3-[4-(2-amino-6-chloro-pyrimidin-4-yl)-phenyl]-2-tert-butoxycarbonylamino-propionic acid (59 mg, 0.15 mmol), cesium carbonate (195 mg, 0.6 mmol) and 1,4-dioxane (1 ml) was heated at 110° C. overnight. The reaction mixture was cooled to room temperature, then was poured into 5 ml of water. 1N HCl was added to adjust pH to 4.5, the aqueous phase was extracted with ethyl acetate (3×10 ml). The combined organic layer was washed with brine and dried over sodium sulfate. The solvent was evaporated to give 80 mg of crude (S)-3-[4-(2-amino-6-{1-[2-(6-cyanopyridin-3-yl)-phenyl]-2,2,2-trifluoro-ethoxy}-pyrimidin-4-yl)-phenyl]-2-tert-butoxycarbonylamino-propionic acid, yield 84%.

Provenance & Evidence