3-(4-chlorophenyl)-6-methyl-1,3-oxazine-2,4-dione

2,2,6-三甲基-4H-1,3-二英-4-酮

乙酰乙酸叔丁酯

3-phenyl-3,4-dihydro-6-methyl-2H-1,3-oxazine-2,4-dione

1-吗啉基-1-环己烯