Benzoic acid (1R,4R,6S)-7-azido-1-[(S)-(4-methoxy-benzyloxy)-((2S,4R)-4-methyl-6-oxo-tetrahydro-pyran-2-yl)-methyl]-4,6-dimethyl-3-oxo-heptyl ester

(S)-(4-Methoxy-benzyloxy)-((2S,4R)-4-methyl-6-oxo-tetrahydro-pyran-2-yl)-acetaldehyde

(4R,6S)-6-[(1R,2R,5R,7S)-8-Azido-2-hydroxy-1-(4-methoxy-benzyloxy)-5,7-dimethyl-4-oxo-octyl]-4-methyl-tetrahydro-pyran-2-one