Which of the following tripeptides is formed when alanine is treated with (BoC)₂O and proline is treated with benzyl alcohol/acid first and the resulting intermediates are reacted in the presence of DCC followed by treatment with aqueous NaOH. The dipeptide is then reacted with the benzyl ester of leucine in the presence of DCC followed by treatment with trifluoroacetic acid and then aqueous NaOH?

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Quizplus · Accepted Answer

The sequence of reactions described leads to the formation of a tripeptide with the specific sequence of amino acids starting with alanine (Ala), followed by proline (Pro), and ending with leucine (Leu). The use of (BoC)₂O (a protecting group) for alanine and the subsequent steps are designed to control the order of peptide bond formation, ensuring Ala is at the N-terminus, followed by Pro, and Leu at the C-terminus.

Which of the Following Tripeptides Is Formed When Alanine Is