Using Nc1ccc2c(c1)CC1(C2)C(=O)Nc2ncccc21, CCOC(=O)c1cc(Cl)ncn1 to produce CCOC(=O)c1cc(Nc2ccc3c(c2)CC2(C3)C(=O)Nc3ncccc32)ncn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.