Concept explainers
a)
Interpretation:
To identify the amino acid that is a catabolic precursor of the given α-keto acids:

Answer to Problem 17VC
Explanation of Solution
Catabolism of proteins occurs by a discrimination of α – amino acids according to the following reaction:
The retro symmetric strategy is used to derive synthons and starting materials.
b)
Interpretation:
To identify the amino acid that is a catabolic precursor of the given α-keto acids:

Answer to Problem 17VC
The corresponding α amino acid precursor is respectively:
Explanation of Solution
Catabolism of proteins occurs by a discrimination of α – amino acids according to the following reaction:
Thus, the α – keto acid derives its structure from its precursor parent amino acid by replacing the segment by
.
This proves the above assigned structures for the α – amino acids.
The retro symmetric strategy is used to derive synthons and starting materials.
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Chapter 29 Solutions
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