Abstract

The chemical synthesis of disulfide-rich peptides such as toxins can be accomplished by using numerous orthogonal cysteine-protecting groups. Herein we report the use of the Hmboff/on protecting group for directed disulfide bond formation. Its combination with classical Trt, Acm, and Mob groups was studied for the synthesis of NMB-1 and phlotoxin-1 toxins highlighting new orthogonal strategies for directed disulfide bond formation.

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