Using COC(=O)c1cc2c(C)ccc(C)c2[nH]1, C=CC(=O)OC to produce COC(=O)C=Cc1c(C(=O)OC)[nH]c2c(C)ccc(C)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.