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Abstract:
The conformation of Xylβ1-(Manα1-3)2Manβ1-4Glcβ1-OCH2CH(N3)CH(OH) CHCHC13H27 tetrasaccharide glycoside in Me2SO-d6 was investigated with use of a distance mapping procedure based on rotating-frame NOE and hydrogen bond constraints, and Molecular Mechanics calculations. The Manα1-3Manβ linkage was found to be well defined in a single conformation, whereas some flexibility could he assumed for the remaining two glycosidic linkages. Similar conclusions, though based on a smaller number of constraints, were drawn for the title compound anchored in mixed D2O/dodecylphosphocholine-d38 micelles.