Using CCOC(=O)C=Cc1cc2nccc(Oc3cc4ccccc4nc3C)c2cc1OC to produce CCOC(=O)CCc1cc2nccc(Oc3cc4ccccc4nc3C)c2cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.