((2S,3S,4R,5R,6R)-4,5-Bis-benzyloxy-3-hydroxy-6-triisopropylsilanyloxymethyl-tetrahydro-pyran-2-yl)-acetaldehyde

(2S,3R,4R,5R,6R)-2-Allyl-4,5-bis-benzyloxy-6-triisopropylsilanyloxymethyl-tetrahydro-pyran-3-ol

(2S,4S,5R,6R)-2-Allyl-4,5-bis-benzyloxy-6-triisopropylsilanyloxymethyl-dihydro-pyran-3-one