Using O=Cc1ccc(Cl)c(Cl)c1, CC(C)CC(c1ccc(S(C)(=O)=O)cc1)c1cc2cc(C(=O)NC(C)C)cnc2[nH]1 to produce O=C(CC1CCCC1)c1ccc(Cl)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.