Five derivatives of methyl 3,4,6-triacetyl-2-deoxy-(3@-dialkylureido)-b-D-glucopyranoside were studied by 1H and 13C, NMR spectroscopy in solutions and by 13C NMR spectroscopy in the solid state. Sterically CDCl 3 crowded substituents such as n-hexyl and cylcohexyl change the chemical shifts of H-1,
ChemInform Abstract: Porcine Liver Esterase-Catalyzed Hydrolysis of Methyl Tri-O-acetyl-β-D-arabinopyranoside (I), Methyl Tri-O-acetyl-β-ribopyranoside (IV) and Methyl Tri-O-acetyl-β-D-ribofuranoside (VIII).
✍ Scribed by Jitka Moravcova; Karel Kefurt; Romana Hladuvkova; Jan Stanek
- Publisher
- John Wiley and Sons
- Year
- 2001
- Weight
- 32 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0931-7597
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📜 SIMILAR VOLUMES
5-Dcoxy-J,2-O-isopropylidene-S-C-(methoxyphenylphosphinyl)-~-O-~~thyl-n-D-ribofuranose (4) was prepared from 1,2-0-isopropylidene-3-O-methyl-a-D-ribo-pentodialdo-1,4-furanose by an addition reaction with methyl phenylphosphinate, followed by deoxygenation of the terminal HO-$H-P group of the adduct
Acylated ]3-o-xylopyranose derivatives are known to exist as a mixture of the 1C 4 and 4C I conformers in rapid equilibrium in solution [3]. Several conformations have also been reported for/3-D-xylopyranose derivatives in the solid state [4]. In the course of our study to investigate the functions