Aspartame, an artificial sweetener a peptide having the following structure CH_(2)C_(6)H_(5)),(" |"),(H_(2)N-CH-CONH-CH-COOCH_(3)),(" |"),(CH_(2)-COOH) . (i) Identify, the four functional groups. (ii) Write the zwitter ion structure. (iii). Write the structures of amino acids obtained as a result of hydrolysis of aspartame. (iv) Which of amino acids formed is more hydrophobic?

Explanation

i) Various functiónal groups are
-CONH '_i^ - ' 'substituted amide (it is a peptide linktage) 'because'
'-NH_2 dot 1^circ'.amino. group
- COOH carboxyl group" éster group?
ii) 'zwitter ion structure, is
iii)
'sqrt because CH_2 COOH'
2-Amino-1, 4-butane 2 -Amino dioicacid. ' 3' -phenyl projpanoic acid
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