Synthesis, crystal structure, and conformation of 1(S)-acetoxy-3--1-(methyl 2,3,4-tri-O-benzyl-6-deoxy-β-D-galactopyranosid-6-yl)propyne

Article abstract of DOI:10.1016/S0008-6215(00)90668-2

Condensation of 6-O-benzyl-7,8-dideoxy-1,2:3,4-di-O-isopropylidene-D-glycero-α-D-galacto-oct-7-ynopyranose with methyl 2,3,4-tri-O-benzyl-6-deoxy-β-D-galacto-heptodialdo-1,5-pyranoside afforded a 2:1 mixture of the 1S and 1R isomers (1a and 1b) of 3-<6(R)