3-(2,2-dimethyl-6-oxo-6H-[1,3]dioxin-4-yl)-benzonitrile 、
(3-amino-2',4'-difluoro-biphenyl-4-yl)-carbamic acid tert.-butyl ester 以Obtained as an orange oil (95 mg)的产率得到{3-[3-(3-cyano-phenyl)-3-oxo-propionylamino]-2',4'-difluoro-biphenyl-4-yl}-carbamic acid tert-butyl ester