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. Author manuscript; available in PMC: 2016 Dec 1.
Published in final edited form as: Angew Chem Int Ed Engl. 2015 Nov 4;54(49):14638–14658. doi: 10.1002/anie.201505017

Scheme 11.

Scheme 11

(A) Stoichiometric DDQ-mediated oxidative cyclization reaction towards the synthesis of Zampanolide,[45] and (B) subsequently developed DDQ-catalyzed conditions employing 2.0 equiv CAN as terminal oxidant.[46]