Using COC(=O)Cc1ccc(NC(=O)N2CCc3ccccc32)c(OC)c1 to produce COc1cc(CC(=O)O)ccc1NC(=O)N1CCc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.