Using CCOC(=O)c1ccc2c(c1)c1ncccc1c(=O)n2Cc1ccc(OC)cc1 to produce COc1ccc(Cn2c(=O)c3cccnc3c3cc(C(=O)O)ccc32)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.