title: p-Tolyl 2-O-benzoyl-3-O-benzyl-4,6-O-benzyl-idene-1-thio-α-l-idopyran-oside.
abstract: The title compound, C(34)H(32)O(6)S, is an ido-configured thio-glycoside building block for heparan sulfate fragments. It contains disordered tolyl and O-benzyl groups with occupancy ratios of 0.539 (13):0.461 (13) and 0.613 (13):0.387 (13), respectively, as determined from a weakly diffracting crystal. The fused rings adopt chair conformations with the mol-ecules packing into a three-dimensional network via C-H⋯O and three C-H⋯π inter-actions. The former inter-actions, occuring between mol-ecules related by a twofold axis, define an R(2) (2)(26) motif.
authors.affiliation: Carbohydrate Chemistry Team, Industrial Research Limited, PO Box 31-310, Lower Hutt, New Zealand 5040.
authors.forename: Graeme J
authors.initials: GJ
authors.lastname: Gainsford
authors.forename: Peter C
authors.initials: PC
authors.lastname: Tyler
authors.forename: Olga V
authors.initials: OV
authors.lastname: Zubkova