(2-amino-4-trifluoromethoxy-phenyl)-carbamic acid tert-butyl ester 、
3-[3-(2-methyl-pyridin-4-yl)-phenyl]-3-oxo-propionic acid tert-butyl ester 以Obtained as an amorphous light yellow substance (275 mg, 69%)的产率得到(2-{3-[3-(2-methyl-pyridin-4-yl)-phenyl]-3-oxo-propionylamino}-4-trifluoromethoxy-phenyl)-carbamic acid tert-butyl ester