Using CC(C)(O)C1CCNCC1, O=C(O)c1nc2c(N3CCOCC3)nc(Cl)nc2s1 to produce CC(C)(O)C1CCN(C(=O)c2nc3c(N4CCOCC4)nc(Cl)nc3s2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.