(3aR,4R,5S,5aR,8aR,8bR)-2,2,7,7-tetramethylhexahydrobenzo[1,2-d:3,4-d']bis([1,3]dioxole)-4,5-diol

methyl 2,3,4-tri-O-benzyl-α-D-galacto-hexodialdo-1,5-pyranoside

(E)-methyl 6-O-acetyl-2,3,4-tri-O-benzyl-α-D-galacto-hex-5-enopyranoside

(Z)-methyl 6-O-acetyl-2,3,4-tri-O-benzyl-α-D-galacto-hex-5-enopyranoside