Using CI, COc1c(C)c(C(=O)c2ccc(N)c(C(=O)O)c2)n2ccccc12 to produce COC(=O)c1cc(C(=O)c2c(C)c(OC)c3ccccn23)ccc1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.