Using CCO, CC(=Cc1ccc(C(CNS(=O)(=O)c2ccc(Cl)cc2)Cc2cccnc2)cc1)C(=O)O to produce CCOC(=O)C(C)=Cc1ccc(C(CNS(=O)(=O)c2ccc(Cl)cc2)Cc2cccnc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.