Phenylacetylene → N-[3-({2-({6-[(5R)-5-(2,2-Dimethyl-4H-1,3-benzodioxin-6-yl)-2-oxo-1,3-oxazolidin-3-yl]hexyl}oxy)ethoxy}methyl)phenyl]-N'-[3-(phenylethynyl)phenyl]urea

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Reaction Steps

A solution of N-[3-({2-({6-[(5R)-5-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-2-oxo-1,3-oxazolidin-3-yl]hexyl}oxy) ethoxy}methyl)phenyl]-N′-(3-iodophenyl)urea (393 mg) and phenylacetylene (77 mg) in DMF (6 ml) was treated with diisopropylethylamine (5 ml) and nitrogen was passed through the solution for 5 min. Copper (I) iodide (10 mg) and dichlorobis(triphenylphosphine)palladium(II) (47 mg) were added and the mixture was stirred under nitrogen at 20° for 21.5 h. The solvent was evaporated in vacuo and EtOAc (15 ml) was added. The supernatent solution was collected and the solvent evaporated in vacuo to give a residue which was purified by Biotage. Elution with dichloromethane-ethanol-ammonia (325:8:1) gave the title compound (328 mg). LCMS RT=3.93 min, ES+ve 718 (MH)+.

Provenance & Evidence