(3R,4S)-3-aminomethyl-4-trifluoromethyl-pyrrolidine-1-carboxylic acid [2-fluoro-4-(2-oxo-2H-pyridin-1-yl)-phenyl]-amide trifluoro acetate 、
2-氯噻吩-5-甲酸 以to give (3R,4S)-3-{[(5-chloro-thiophene-2-carbonyl)-amino]-methyl}-4-trifluoromethyl-pyrrolidine-1-carboxy-lic acid[2-fluoro-4-(2-oxo-2H-pyridin-1-yl)-phenyl]-amide的产率得到(3R,4S)-3-{[(5-chloro-thiophene-2-carbonyl)-amino]-methyl}-4-trifluoromethyl-pyrrolidine-1-carboxy-lic acid[2-fluoro-4-(2-oxo-2H-pyridin-1-yl)-phenyl]-amide