2-甲基-2-丙基[2-氨基-4-(三氟甲基)苯基]氨基甲酸酯 、
3-[3-(6-ethyl-pyridin-3-yl)-phenyl]-3-oxo-propionic acid tert-butyl ester 以Obtained as an amorphous yellow substance (296 mg, 75%)的产率得到(2-{3-[3-(6-ethyl-pyridin-3-yl)-phenyl]-3-oxo-propionylamino}-4-trifluoromethyl-phenyl)-carbamic acid tert-butyl ester