3-(2,2-dimethyl-6-oxo-6H-[1,3]dioxin-4-yl)-benzonitrile 、
(3-amino-4'-cyano-biphenyl-4-yl)-carbamic acid tert-butyl ester 以Obtained as a light red solid (185 mg)的产率得到{4'-cyano-3-[3-(3-cyano-phenyl)-3-oxo-propionylamino]-biphenyl-4-yl}-carbamic acid tert-butyl ester