Scheme 1.
a) Functionalization of pDTT using EDC coupling of protected dihydrocaffeic acid, followed by deprotection to reveal the catecholic moiety. b) Thiol‐induced/base‐catalyzed depolymerization of catechol‐modified poly(dithiothreitol) to produce catechol‐modified cDTT via cyclization reactions upon end‐cap removal.