Sodium Carbonate → (S)-tert-Butyl 4-(1-amino-3-(3'-cyano-4'-methylbiphenyl-4-yl)-1-oxopropan-2-ylcarbamoyl)tetrahydro-2H-pyran-4-ylcarbamate

関与物質

反応条件

反応手順

(S)-tert-Butyl 4-(1-amino-1-oxo-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)propan-2-ylcarbamoyl)tetrahydro-2H-pyran-4-ylcarbamate (Example 16, step (i), 200 mg) and 5-bromo-2-methylbenzonitrile (80 mg) in acetonitrile (8 mL) were treated with an aqueous solution of sodium carbonate (2M, 0.387 mL) and nitrogen was bubbled through the mixture. 1,1 bis(Di-tert-butylphosphino)ferrocene palladium dichloride (5 mg) was added and the mixture was heated at 85° C. for 18 h. The mixture was concentrated and purified by chromatography on silica eluting with 50 to 100% ethyl acetate/isohexane to afford the sub-titled compound (154 mg).

情報源と証拠