Using O=C1c2ccccc2C(Cl)N1c1ccc2ccc(Cl)nc2n1, CN1CCC(C(=O)O)CC1 to produce CN1CCC(C(=O)OC2c3ccccc3C(=O)N2c2ccc3ccc(Cl)nc3n2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.