The stereochemistry of the new chiral centre C7 in the title galactosyl alpha -aminoester diastereomer product, C(25)H(37)NO(7), has been established as S. The pyranose ring has a twist-boat conformation due to the presence of the two isopropylidene ketal moieties. The molecule contains no intramolecular hydrogen bond.
机构:
Department of Chemistry, University of Dundee, Dundee DD1 4HN, United KingdomDepartment of Chemistry, University of Dundee, Dundee DD1 4HN, United Kingdom
Barnes, J.C.
Brimacombe, J.S.
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机构:
Department of Chemistry, University of Dundee, Dundee DD1 4HN, United KingdomDepartment of Chemistry, University of Dundee, Dundee DD1 4HN, United Kingdom