2-(furan-2-yl)-[1,2,4]triazolo[1,5-c]quinazolin-5-amine

7-氯-2,4-喹唑啉二胺

2,4-diamino-6-phenylpyrimidine-5-carbonitrile

6,8-diamino-1H-pyrimido[5,4-g]pteridine-2,4-dione

2-amino-5-butyl-6-phenyl-1H-pyrimidin-4-one