tert-butyl (4-(2-fluoro-4-iodoanilino)-5-{[(3-hydroxypropyl)amino]carbonyl}-2-oxo-1(2H)-pyridinyl)acetate 、
sodium hydroxide 、 、
甲醇乙酸乙酯 以
乙醇 为溶剂,
以to give (4-(2-fluoro-4-iodoanilino)-5-{[(3-hydroxypropyl)amino]carbonyl}2-oxo-1(2H)-pyridinyl)acetic acid as a white solid (86%), m.p. (EtOAc/MeOH) 199-202° C的产率得到(4-(2-fluoro-4-iodoanilino)-5-{[(3-hydroxypropyl)amino]carbonyl}-2-oxo-1(2H)-pyridinyl)acetic acid