Toluene-4-sulfonic acid (2S,3S,4R)-2,3,4-tris-benzyloxy-5,5-bis-ethylsulfanyl-pentyl ester

(2R,3S,4S)-2,3,4-tris(benzyloxy)-1,1-bis(ethylsulfanyl)-5-(trityloxy)pentane

(2R,3S,4S)-1,1-bis(ethylsulfanyl)-5-(trityloxy)pentane-2,3,4-triol

(2R,3S,4S,5S)-dimethyl 2-acetoxy-3,4,5-tribenzyloxy-1,1-cyclohexane dicarboxylate