2,2'-diacetoxy-5,5'-di-tert-butyl-3,3'-bis[(2S,4S)-3-(4-methylbenzenesulfonyl)-4-(1-methylethyl)-1,3-oxazolidinyl]biphenyl

5,5'-di-tert-butyl-3,3'-bis[(2R,4R)-4-ethyl-3-(2,4,6-trimethylbenzenesulfonyl)-1,3-oxazolidinyl]biphenyl-2,2'-diol

5,5'-di-tert-butyl-3,3'-bis[(2S,4S,5S)-3-(4-methoxybenzenesulfonyl)-4-methyl-5-phenyl-1,3-oxazolidinyl]-biphenyl-2,2'-diol

5,5'-di-tert-butyl-3,3'-bis[(2R,4R)-4-ethyl-3-(4-methylbenzenesulfonyl)-1,3-oxazolidinyl]biphenyl-2,2'-diol

5,5'-di-tert-butyl-3,3'-bis[(2S,4S)-3-(4-methylbenzenesulfonyl)-4-(1-methylethyl)-1,3-oxazolidinyl]biphenyl-2,2'-diol