6,7,9-tri-O-acetyl-4,8-anhydro-2,3,5-trideoxy-5-benzyloxycarbonylamino-D-glycero-D-ido-nononic acid tert-butyl ester

4,8-anhydro-5-[(R)-3-(benzyloxytetradecanoyl)amino]-2,3,5-trideoxy-7,9-O-isopropylidene-D-glycero-D-ido-nononic acid tert-butyl ester

6,7,9-tri-O-acetyl-4,8-anhydro-5-[(R)-3-(benzyloxytetradecanoyl)amino]-2,3,5-trideoxy-D-glycero-D-ido-nononic acid tert-butyl ester

4,8-anhydro-5-[(R)-3-(benzyloxytetradecanoyl)amino]-2,3,5-trideoxy-7,9-O-isopropylidene-6-O-[(R)-3-(tetradecanoyloxy)tetradecanoyl]-D-glycero-D-ido-nononic acid tert-butyl ester