Hydrochloric Acid → HCID 67097869, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of tert-butyl [(2R)-2-hydroxy-2-phenylethyl][2-(4-iodophenoxy)ethyl]carbamate (250 mg) and [3-(cyclohexylamino)-4-[[[(3-hydroxypropyl)sulfonyl]amino]-carbonyl]phenyl]boronic acid (258 mg) in toluene (3.0 ml) and ethanol (750 μl) were added 1,1′-bis(diphenylphosphino)ferrocene (29 mg), sodium carbonate aqueous solution (2M, 830 μl) and [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium (38 mg) at room temperature under nitrogen and stirred at 75° C. for 2 hours. The reaction mixture was poured into 0.5N hydrochloric acid (20 ml) and ethyl acetate (20 ml), added active carbon and stirred at room temperature for 30 minutes. The mixture was filtered and separated the organic layer. The organic layer was washed with brine, dried over magnesium sulfate and concentrated in vacuo. The residue was purified with silica gel column chromatography to give tert-butyl [2-[[3′-(cyclohexylamino)-4′-[[[(3-hydroxypropyl)sulfonyl]amino]carbonyl]-4-biphenylyl]oxy]ethyl][(2R)-2-hydroxy-2-phenylethyl]-carbamate (127 mg).

Provenance & Evidence