Draw the structure of any ?-D-ketoheptose in the open chain form, and answer the following questions (you must use either Haworth projection or chair conformation in each of the points below):
a) how many asymmetric carbon atoms does the above sugar have ?
b) how many stereoisomers of this sugar can theoretically exist ?
c) draw the structure an ANOMER of your initial molecule
d) draw the structure an ENANTIOMER of your initial molecule
e) draw the structure an EPIMER (other than anomer) of your initial molecule
f) draw the structure of a DIASTEREOMER (other than anomer or epimer) of your initial molecule
g) draw the structure of the STRUCTURAL ISOMER of your initial molecule
h) draw the structure of your initial molecule in the furanose form
i) draw the structure of a non-reducing disaccharide that may be obtained from linking your ketopyranose and ketofuranose forms
j) draw the structure of the STRUCTURAL ISOMER to your non-reducing disaccharide that possesses a different functional group.