Using O=C(CCC12CC3CC(CC(C3)C1)C2)c1ccccc1Cl, C1N2CN3CN1CN(C2)C3 to produce O=C1c2c(Cl)cccc2CC1CC12CC3CC(CC(C3)C1)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.