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. Author manuscript; available in PMC: 2014 Apr 16.
Published in final edited form as: Chembiochem. 2008 Jun 16;9(9):1450–1461. doi: 10.1002/cbic.200700724

Scheme 1.

Scheme 1

Possible mechanisms for the oxidative cleavage of resveratrol. Shown are two proposed mechanisms for oxidative cleavage with CCO enzymes. A dioxygenase mechanism results in both aldehyde cleavage products labeled with isotopic 18O when the reactions are performed in an 18O atmosphere. The monooxygenase mechanism results in a single isotopic 18O labeled cleavage product when reactions are performed in an 18O atmosphere.