Provide the structure of the major organic product of the reaction below. 
Definitions:
Histidine
An essential amino acid in humans, involved in the growth and repair of tissues and the production of histamine.
Organic Products
Compounds containing carbon that are produced as a result of organic reactions.
Amino Acid Analyzer
A device that is used for the identification and quantification of amino acids in a sample, typically using chromatographic techniques.
Amino Acids
Organic compounds containing both amino and carboxyl groups, serving as the building blocks of proteins.
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