potassium tert-butylate; N-[2'-(dicyclohexylphosphino)-1,1'-biphenyl-2-yl]-N,N-dimethylamine; tris(dibenzylideneacetone)dipalladium (0) in toluene T=80°C; Buchwald-Hartwig amination; 16 h;

cesium fluoride; tri-cyclo-hexyl-phosphine; palladium diacetate in tetrahydrofuran T=55°C; Suzuki coupling; 16 h;

1,3-bis-(diphenylphosphino)propane; triethylamine; tris(dibenzylideneacetone)dipalladium (0) in N,N-dimethyl-formamide T=80°C; Heck coupling; 16 h; Title compound not separated from byproducts.;