Question

1. Review. Using your notes and the nomenclature packet for carbohydrates and lipids, name the follow monosaccharide derivatives (e.g. mannose-4-phosphate, glucitol). (8 pts - 2 ea.) a) LON (goH oH yo HA OH 2. Review. Draw the following monosaccharide derivatives. Assume all sugars are in their normal ring forms. (6 pts - 2 ea.) a) fructose-2-phosphate c) D-mannonic acid b) B-D-2-amino-2-deoxyribose

Answer 1

1) a) it is a reduced form of D-mannose means when you reduced D-mannose by NaBH4 reagent then it's give mannitol.

So name of give carbohydrate is (mannitol)

b) it is a cyclic form of D-MANNOSE and 6-member ring name called pyranose and at anomeric carbon OH group above side so it's called Bita.

Name is ( bita-D-mannopyranose)

c) at four position phasphate group is present and it is a derivative of galactose.

Name is ( Galactose-4-phosphate)

d) it is drived from erythrose so it's name is.

(4alpha-3-deoxy-1alpha-erythrofuranose)

2-

- a a) fructose - 2- phosphate 애 NO. 6 O 5 HD. 4 3 O Pogle OA 빙 $ - D-2-amino -2-deoxyribose H~ OH 0 P 애 NH), ) D-mannonic acid NO! 10K 내 A O 애