(4S,5R)-5-(benzyloxymethyl)-4-methoxy-tetrahydro-furan-2-carbaldehyde

(2R,3S)-3-methoxy-hex-5-ene-1,2-diol

(S)-1-[(R)-2,2-dimethyl-1,3-dioxolan-4-yl]-but-3-enyl methyl ether

(2R,3S)-1-benzyloxy-3-methoxy-hex-5-en-2-ol