Using COc1cccc(C(=O)Cl)c1[Se]Cc1ccccc1, Nc1ccccc1 to produce COc1cccc(C(=O)Nc2ccccc2)c1[Se]Cc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.