diphenyl ((4R,5R)-5-(benzo[d][1,3]dioxol-5-yl)-4-phenyl-2-thioxooxazolidin-4-yl)phosphonate

diphenyl ((4R,5S)-4-phenyl-5-(thiophen-2-yl)-2-thioxooxazolidin-4-yl)phosphonate

diphenyl ((4R,5R)-4-phenyl-5-((E)-styryl)-2-thioxooxazolidin-4-yl)phosphonate