Using NCCCO, O=CCCc1ccc(Cl)c(C(=O)NCC23CC4CC(CC(C4)C2)C3)c1 to produce O=C(NCC12CC3CC(CC(C3)C1)C2)c1cc(CCCNCCCO)ccc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.