2-(4-methyl-1-naphthalenyl)-4H-pyrido[3,2-d][1,3]oxazin-4-one 、
3-氨甲基-吗啉-4-碳酸叔丁酯 以provided crude tert-butyl 3-{[({3-[(4-methyl-1-naphthoyl)amino]pyridin-2-yl}carbonyl)amino]methyl}morpholine-4-carboxylate, which的产率得到tert-butyl 3-([((3-[(4-methyl-1-naphthoyl)amino]pyridin-2-yl)carbonyl)amino]methyl)morpholine-4-carboxylate