Using COCOCCc1ccc(C(O)c2c(C)cc(C)nc2OCc2ccccc2)cc1 to produce COCOCCc1ccc(Cc2c(C)cc(C)[nH]c2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.