(3S,4R)-4-[(5-chloro-thiophene-2-carbonyl)-amino]-pyrrolidine-3-carboxylic acid ethyl ester hydrochloride 、 2-Bromo-[2-fluoro-4-(2-oxopyridin-1-yl)-phenyl]-acetamide 以
四氢呋喃 为溶剂,
以to give (3S,4R)-4-[(5-chloro-thiophene-2-carbonyl)-amino]-1-{[2-fluoro-4-(2-oxo-2H-pyridin-1-yl)-phenyl-carbamoyl]-methyl}-pyrrolidine-3-carboxylic acid ethyl ester的产率得到(3S,4R)-4-[(5-chloro-thiophene-2-carbonyl)-amino]-1-{[2-fluoro-4-(2-oxo-2H-pyridin-1-yl)-phenyl-carbamoyl]-methyl}-pyrrolidine-3-carboxylic acid ethyl ester