Using COC(=O)c1cccc(-c2cnccc2C(=O)N(C(C)C)C(C)C)c1N to produce COC(=O)c1cccc2c1[nH]c(=O)c1ccncc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.