Using COc1cc(/C=C/C=C/C(=O)N2CCN(C(=O)/C=C/C=C/c3cc(OC)c(OC)c(OC)c3)C(CN3C(=O)c4ccccc4C3=O)C2)cc(OC)c1OC to produce COc1cc(/C=C/C=C/C(=O)N2CCN(C(=O)/C=C/C=C/c3cc(OC)c(OC)c(OC)c3)C(CN)C2)cc(OC)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.