N-[2-(diethylamino)ethyl]-3-oxobutanamide

3-氧代丁酸 4-甲氧基苄基酯

N-acetyl-N-methyl-3-oxobutanamide

6-methyl-2,3-diphenyl-2H-1,3-oxazin-4-one

3-heptyl-6-methyl-1,3-oxazine-2,4-dione