Using CC[Mg]Br, CN(C(=O)C1CCN(Cc2ccccc2)C1)C1CCN(C(=O)OC(C)(C)C)CC1 to produce CN(C1CCN(C(=O)OC(C)(C)C)CC1)C1(C2CCN(Cc3ccccc3)C2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.