Using Nc1ccccc1NC(=O)c1ccc(C=C2Cc3ccccc3C2=O)cc1 to produce Nc1ccccc1NC(=O)c1ccc(CC2Cc3ccccc3C2O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.