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

Participants

Reaction Conditions

Reaction Steps

(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), 180 mg) and 4-bromo-2-methylbenzonitrile (72 mg) in acetonitrile (8 mL) were treated with an aqueous solution of sodium carbonate (2M, 0.348 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 (127 mg).

Provenance & Evidence