Using CI, CCOC(=O)c1c(C)cc(OCc2cccc(OCc3ccc4ccccc4n3)c2)cc1O to produce CCOC(=O)c1c(C)cc(OCc2cccc(OCc3ccc4ccccc4n3)c2)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.