Fig. 1: Cyclic amine modification for peptide aldehyde synthesis.
From: Electrochemical synthesis of peptide aldehydes via C‒N bond cleavage of cyclic amines

A Representative peptide aldehyde biomolecules. B Skeletal diversification of cyclic amines (C) Shono-type oxidation. D This work: electro-oxidative ring-opening via C‒N bond cleavage. ABNO = 9-Azabicyclo[3.3.1]nonane N-oxyl.