Methyl 2,3,6-tri-O-benzoyl-4-deoxy-4-methoxyamino-alpha-D-glucopyranoside.
The crystalline-state conformation of the title compound, C(29)H(29)NO(9), has been established unequivocally. The R absolute configuration is observed at the 4-methoxyamino moiety and the pyranose ring adopts essentially a perfect (4)C(1) chair. The torsion angle of the exocyclic hydroxymethyl group is shown to be gauche--gauche with respect to O1 and C4, respectively. The conformation along the methoxyamino bond is consistent with that observed for calicheamicin gamma(1)(I).
LEDSS, UMR CNRS 5616, Université Joseph Fourier, BP 53, 38041 Grenoble CEDEX 9, France.
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Renaudet
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Dumy
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Philouze
D018360:Crystallography, X-Ray; D006863:Hydrogen-Ion Concentration; D008958:Models, Molecular; D008968:Molecular Conformation; D009005:Monosaccharides / Q000737:chemistry*
D009005:Monosaccharides; C428928:methyl 2,3,6-tri-O-benzoyl-4-deoxy-4-methoxyamino-glucopyranoside