乙酰乙酸丁酯

1-(5-bromopentyl)-3,6-dimethylpyrimidine-2,4-dione

1-(2-hydroxyethyl)-3,6-dimethylpyrimidine-2,4-dione

N-乙酰丙酮吗啉

N-甲基-4-吗啉羧酰胺