methyl 2-O-pivaloyl-3-O-benzyl-5-O-tert-butyldimethylsilyl-D-glucuronate di(ethylthio)acetal

methyl 2-O-pivaloyl-3-O-benzyl-4-O-levulinoyl-5-O-tert-butyldimethylsilyl-D-glucuronate di(ethylthio)acetal

methyl 2-O-pivaloyl-3-O-benzyl-4-O-levulinoyl-D-glucuronate di(ethylthio)acetal

(2S,3S,4R)-3-(benzyloxy)-5,5-bis(ethylthio)-1-oxo-4-(pivaloyloxy)pentan-2-yl 4-oxopentanoate

(2R,3S,4R,5S)-3-(benzyloxy)-5-cyano-1,1-bis(ethylthio)-4,5-dihydroxypentan-2-yl pivalate