methyl 6-[2-(difluoromethoxy)phenyl]-3,4-dimethyl-2-oxo-1,6-dihydropyrimidine-5-carboxylate

3-甲基喹唑啉-2,4(1h,3h)-二酮

6-氯-3-甲基尿嘧啶

1,4-二甲基-1,3-二氢-5-苯基-2H-咪唑-2-酮

N,N"-1,2-乙烷二基二脲