(2S,3R,4R,4aS,6R,7S,8aR)-7-Methoxy-2-[(2R,3S)-3-(4-methoxy-benzyloxy)-tetrahydro-pyran-2-ylmethyl]-6-methoxymethyl-4a-methyl-octahydro-pyrano[3,2-b]pyran-3,4-diol

(R)-2-((2S,3S,4R,4aR,6R,7S,8aR)-7-Methoxy-6-methoxymethyl-4a-methyl-3,4-bis-triethylsilanyloxy-octahydro-pyrano[3,2-b]pyran-2-ylmethyl)-dihydro-pyran-3-one