FPID can be used to synthesize dipeptides from various standard amino acids, including sterically hindered amino acids, and the pentapeptide leu-enkephalin in protected form. It also can be used to the solid-phase peptide synthesis 

References:

[2] Liu, D.; Guo, Y.; Qu, J.; Zhang, C. Recyclable hypervalent-iodine-mediated solid-phase peptide synthesis and cyclic peptide synthesis. Beilstein J. Org. Chem. 2018, 14, 1112–1119.