5-氯-2,3-二苯基吡嗪

3-chloro-5,6-diphenyl-1H-pyrazin-2-one

3-硝基-5,6-二苯基-1H-吡嗪-2-酮

1-methyl-5,6-diphenylpyrazin-2-one

5-methoxy-2,3-diphenylpyrazine