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| >> Sialic Acids
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Neuraminic acid may be
visualized
as the addition of pyruvic acid (3 carbon sugar acid) to
the amino sugar 2-amino-2-deoxy-mannose. The aldehyde of mannose becomes chiral, in R configuration. The pyranose
cyclic form arises when the carbonyl of C2 forms a hemiacetal with the hydroxyl of C6. Carbons C7, C8, and C9, together
outside the ring, are called the glycerol substituent. It should be noted that the term "Sialic Acids" refers
to the group of sugars including Neuraminic Acid and its derivatives, not to a specific sugar.
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