O,S-dimethyl (S)-phenylphosphonothioate

diethyl sodium phosphite

[chloro(ethoxy)phosphoryl]benzene

(2R,3R,4R,5S,6R)-4,5-dimethoxy-6-(methoxymethyl)-3-(methylamino)tetrahydro-2H-pyran-2-yl ethyl phenylphosphonate

diethyl phosphite potassium salt