.. Draw Haworth projections for the following: (a) CHO in a-furanose form. Name the sugar. H-C- OH но-с—н H-C-OH CH,OH (b) The L isomer of (a) (c) a-D-GlcNAc (d) (d) a-D-Fructofuranose
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- An oligosaccharide isolated from an organism is found tocontain two glucose residues and one galactose residue.Exhaustive methylation followed by hydrolysis producedtwo glucoses with methoxy groups at positions 2, 3,and 6 and galactose with methoxy groups at positions2, 3, 4, and 6. What is the structure of the originaloligosaccharide?For D-lyxose i. Draw an epimer at C3. ii. Draw a diastereomer that is not an epimer. iii. Draw the anomers of -D-lyxofuranose and -D-lyxopyranose. iv. Draw the product as Haworth projection when reacted with methanol catalysed by acid.Treatment of D-glucose with NaBH4 gives an alditol A. What L-aldohexose also yields A when treated with NaBH4?
- The cyclic form of this sugar would be A) alpha-anomer as the -CH2OH and the hemiacetal -OH are trans B) beta-anomer as the -CH2OH and the hemiacetal -OH are cis C) beta-anomer as the -CH2OH and the hemiacetal -OH are trans D) alpha-anomer as the -CH2OH and the hemiacetal -OH are cis1. Draw the Haworth Projection of β-D-allofuranose and its enantiomer.5-Deoxyglucose will close to a?