Which of the following reagents is used to protect the amino group in the selective synthesis of the dipeptide Ala-Val?

Question

Quizplus · Accepted Answer

Reagent II, Fmoc-OSu, is commonly used as a protecting group for the amino group in selective peptide synthesis. It can be easily removed under mild basic conditions to reveal the free amine without affecting other protected functional groups. Reagents I, III, IV, and V are not commonly used for amino group protection in peptide synthesis.

Which of the Following Reagents Is Used to Protect the Amino