Sodium Carbonate → HCID 10225311, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 5′-bromo-2′-hydroxyacetophenone, diboron pinacol ester (1.25 eq), potassium acetate (3 eq) and [1,1′-bis (diphenylphosphino)ferrocene]dichloropalladium(II) (0.05 eq) in N,N-dimethylformamide (10 mmol) was stirred at 80° C. for 3 hours and cooled down. A solution of N-Isopropyl-1-(3-bromophenyl)-1,4-dihydro[1,8]naphthyridin-4-one-3-carboxamide from Example 1, Step 4 (0.75 eq) in N,N-dimethylformamide (7 ml/mmol), [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(1) (0.05 eq) and 2M aqueous sodium carbonate (8.5 eq) were added and the resulting mixture was stirred at 80° C. for 2.5 hours. The cooled mixture was partitioned between ethyl acetate and water and the product from the organic phase was chromatographed on silica gel eluting with 60% ethyl acetate in hexane to afford the title compound as a light yellow solid.

Provenance & Evidence