2-氨基-5-甲基-4-(三氟甲基)苯基氨基甲酸叔丁酯 、
3-[3-(2-ethyl-pyridin-3-yl)-phenyl]-3-oxo-propionic acid tert-butyl ester 以Obtained as an amorphous off-white substance (346 mg, 85%)的产率得到(2-{3-[3-(2-ethyl-pyridin-3-yl)-phenyl]-3-oxo-propionylamino}-5-methyl-4-trifluoromethyl-phenyl)-carbamic acid tert-butyl ester