3-氨基巴豆酸甲酯

ethyl 3-aminocrotonate

β-氨基巴豆酸甲酯

2-(m-nitro)phenyltetrahydro-(2H)-1,3-oxazines

methyl 7-(3-nitrophenyl)-5,8a-dimethyl-8-methoxycarbonyl-2,3,8,8a-tetrahydro-7H-oxazolo[3,2-a]pyridin-6-carboxylate