Using COC(=O)c1cccc(Cc2ccc(N3CC(=O)NS3(=O)=O)c(OCc3ccccc3)c2)c1 to produce O=C1CN(c2ccc(Cc3cccc(C(=O)O)c3)cc2OCc2ccccc2)S(=O)(=O)N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.