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. 2021 Aug 31;60(39):21543–21549. doi: 10.1002/anie.202108698

Scheme 1.

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.