title: Crystal and molecular structures of diglycosyl disulfide derivatives.
abstract: The crystal and molecular structures of S-(2,3,4,6-tetra-O-acetyl-beta-d-glucopyranosyl)-S'-(2,3,4,6-tetra-O-acetyl-beta-d-galactopyranosyl)disulfide (1) and the mono-sulfoxide (3) of bis(2,3,4,6-tetra-O-acetyl-beta-d-glucopyranosyl)disulfide (2) are described. Comparison of 2 and 3, containing -S-S- and -S-S(O)- bonds, respectively, allows to delineate structural differences brought about by the different oxidation states of one of the sulfur atoms in carbohydrate disulfides.
authors.affiliation: Department of Chemistry, University of Antofagasta, Casilla 170 Antofagasta, Chile.
authors.forename: Ivan
authors.initials: I
authors.lastname: Brito
authors.forename: Matías
authors.initials: M
authors.lastname: López-Rodríguez
authors.forename: Attila
authors.initials: A
authors.lastname: Bényei
authors.forename: László
authors.initials: L
authors.lastname: Szilágyi
mesh_terms: D003460:Crystallization; D018360:Crystallography, X-Ray; D004220:Disulfides / Q000737:chemistry*; D013454:Sulfoxides / Q000737:chemistry; D013865:Thioglycosides / Q000737:chemistry*
chemical_list: D004220:Disulfides; C516677:S-(2,3,4,6-tetra-O-acetylglucopyranosyl)-S'-(2,3,4,6-tetra-O--acetylgalactopyranosyl)disulfide S-oxide; C516676:S-(2,3,4,6-tetra-O-acetylglucopyranosyl)-S'-(2,3,4,6-tetra-O-acetylgalactopyranosyl)disulfide; D013454:Sulfoxides; D013865:Thioglycosides