Acetonitrile → 2-Amino-3-(4-{6-[1-(3,4-difluoro-phenyl)-2,2,2-trifluoro-ethoxy]-pyridin-4-yl}-phenyl)-propionic acid

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

An Emrys process vial (2-5 ml) for microwave was charged with 4-chloro-6-[1-(3,4-difluoro-phenyl)-2,2,2-trifluoro-ethoxy]-pyrimidine (33 mg, 0.1 mmol), 4-borono-L-phenylalanine (31 mg, 0.15 mmol), 1 ml of acetonitrile and 0.7 ml of water. Aqueous sodium carbonate (0.3 ml, 1M) was added to above solution followed by 5 mol % of dichlorobis(triphenylphosphine)-palladium(II). The reaction vessel was sealed and heated to 150° C. for 5 minutes by microwave. After cooling, the reaction mixture was evaporated to dryness. The residue was dissolved in 2.5 ml of methanol, then purified with Prep-LC to give 10 mg of 2-amino-3-(4-{6-[1-(3,4-difluoro-phenyl)-2,2,2-trifluoro-ethoxy]-pyridin-4-yl}-phenyl)-propionic acid, yield 21%. 1H-NMR (400 MHz, CD3OD): δ 3.11 (m, 1H), 3.27 (m, 1H), 4.19 (dd, 1H), 6.78 (q, 1H), 7.26 (m, 2H), 7.35 (d, 3H), 7.49 (m, 2H), 8.02 (d, 2H), 8.66 (s, 1H).

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