(2-amino-5-ethoxy-4-trifluoromethyl-phenyl)-carbamic acid tert.-butyl ester 、
3-[3-(2-ethyl-pyridin-3-yl)-phenyl]-3-oxo-propionic acid tert-butyl ester 以Obtained as an amorphous yellow substance (294 mg, 69%)的产率得到(5-ethoxy-2-{3-[3-(2-ethyl-pyridin-3-yl)-phenyl]-3-oxo-propionylamino}-4-trifluoromethyl-phenyl)-carbamic acid tert-butyl ester