5-amino-1,3-dimethyl-6-(methylamino)pyrimidine-2,4-dione

N,N'-羰基二咪唑

6-chloro-1,3-dimethyl-5-nitropyrimidine-2,4-dione

1,3-二甲基巴比妥酸

6-氯-1,3-二甲基脲嘧啶