Concept explainers
(a) On the basis of the following sequence of reactions, Emil Fischer was able to show that
(b) The configuration of L-(+)-cysteine can be related to that of L-(−-)-serine through the following reactions. Write Fischer projections for D and E:
(c) The configuration of L-(−-)-asparagine can be related to that of L-(−-)-serine in the following way. What is the structure of F?
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