二氢尿嘧啶

1,3-二乙基硫脲

1,3-diethyl-5,5-diphenyl-2-thioxoimidazolidin-4-one

isopropyl 3-(4,6-diethyl-2-oxo-3a,6a-diphenyl-5-thioxooctahydroimidazo[4,5-d]imidazol-1-yl)propanoate