tetrahydro-1-acetyl-2,4,6-triphenyl-1,2,4,5-tetrazin-3(2H)-one

4-bromo-3-phenyloxadiazol-3-ium-5-olate

乙酸酐

1,4,5,6-tetrahydro-2,4,6-triphenyl-1,2,4,5-tetrazin-2(2H)-one

苯肼