N,N'-[(1S,2S)-1,2-Diphenyl-1,2-ethanediyl]bis(2-diphenylphosphinobenzamide)
(S)-N,N'-(1,1'-Binaphthalene]-2,2'-diyl)bis(2-diphenylphosphinobenzamide)
N,N'-[(1R,2R)-1,2-Diphenyl-1,2-ethanediyl]bis[2-diphenylphosphinobenzamide]
(R)-N,N'-(1,1'-Binaphthalene]-2,2'-diyl)bis(2-diphenylphosphinobenzamide)
