Using COc1cc(NC(=O)c2ccc(-c3ccccc3)cc2)ccc1C(=O)O to produce O=C(Nc1ccc(C(=O)O)c(O)c1)c1ccc(-c2ccccc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.