Using NCC12CC3CC(CC(C3)C1)C2, O=C(O)c1cc(O)ccc1Cl to produce O=C(NCC12CC3CC(CC(C3)C1)C2)c1cc(O)ccc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.