乙基(2,2-二乙氧基乙基)氨基甲酸酯

2,4-二乙氧基-5-甲基嘧啶

2,3-dihydro-[1,3]thiazolo[3,2-a]pyrimidine-5,7-dione

4-(4-methoxyphenyl)hexan-3-one

diethyl 2-(diethoxymethyl)propanedioate