2-[4-[4-(carboxymethoxy)phenyl]sulfonylphenoxy]acetic acid

1-methoxy-4-(4-methoxyphenyl)sulfonylbenzene

2,6-dichloro-4-(3,5-dichloro-4-hydroxyphenyl)sulfonylphenol

二苯砜

[4-[4-(trifluoromethylsulfonyloxy)phenyl]sulfonylphenyl] trifluoromethanesulfonate