ethyl 3-methyl-1,1-dioxo-2H-1,2,6-thiadiazine-5-carboxylate

4-acetyloxolane-2,3-dione

ethyl 5-acetyl-2-oxo-1H-pyrimidine-6-carboxylate

4-乙酰基-1-(4-氯-2-氟苯基)-5-环己基-1,5-二氢-3-羟基-2H-吡咯-2-酮

2-chloro-3-[(E)-2-chloroprop-1-enyl]quinoxaline