苯甲醛

5-amino-1,3-dimethyl-6-(5-phenyltetrazol-2-yl)uracil

5-苯基四氮唑

5-amino-6-chloro-1,3-dimethylpyrimidine-2,4-dione

6-azido-1,3-dimethylpyrimidine-2,4-dione