Using C=Cc1cccc(OC)c1NC(=O)CC1c2ccccc2Oc2ccccc21 to produce CCc1cccc(OC)c1NC(=O)CC1c2ccccc2Oc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.