Using COC(=O)c1ccc(CC(C)NCC(O)c2ccc(OCc3ccccc3)c(CS(C)(=O)=O)c2)cc1 to produce COC(=O)c1ccc(CC(C)NCC(O)c2ccc(O)c(CS(C)(=O)=O)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.