N-acetyl-N-(1-acetyl-6-oxo-2,3-dihydropyridin-5-yl)acetamide

1-(2-methyl-5,6-dihydro-[1,3]oxazolo[5,4-b]azepin-4-yl)ethanone

N-(1-acetyl-7-oxo-3,4-dihydro-2H-azepin-6-yl)acetamide

1-Acetyl-3-diacetylamino-1,5,6,7-tetrahydro-2H-azepin-2-on

N-(1-acetyl-8-oxo-2,3,4,5-tetrahydroazocin-7-yl)acetamide