(5E)-2,6-diamino-5-[(4-chlorophenyl)hydrazinylidene]pyrimidin-4-one

5-氯甲基呋喃并[2,3-d]嘧啶-2,4-二胺

2-amino-4-oxo-1H-pyrido[2,3-d]pyrimidine-6-carbaldehyde

2,6-diamino-5-prop-2-enyl-1H-pyrimidin-4-one