5-chloro-1-oxido-2-phenylpyrazin-1-ium

3-phenyl-2H-1,4-benzoxazin-2-ol

2,5-二氯-3-苯基吡嗪

5-phenyl-[1,2,5]oxadiazolo[3,4-b]pyrazine

trimethyl-(1-phenyl-2-trimethylsilyloxyethenoxy)silane