Using COc1ccc(C=O)cc1OC, COC(=O)c1cccc2oc(C)nc12 to produce COC(=O)c1cccc2oc(/C=C/c3ccc(OC)c(OC)c3)nc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.