2,2-diphenyl-3-sulfanylpropanoic acid

2,2-diphenyl-3-phenylsulfanyl-propionic acid

2,2,2',2'-tetyraphenyl-3,3'-dithiodipropionic acid

N,N'-di-t-butyl-2,2,2',2'-tetraphenyl-3,3'-dithiodipropionamide

5-bromo-2-t-butyl-4,4-diphenylisothiazolidin-3-one