Using C=CCn1cc(Cc2ccc(C(=O)OC)cc2OC)c2cc(/C=C(\C)C(=O)NCCC)ccc21 to produce C=CCn1cc(Cc2ccc(C(=O)O)cc2OC)c2cc(/C=C(\C)C(=O)NCCC)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.