Using Br[Mg]c1ccccc1, O=C(O[C@H]1CN2CCC1CC2)C(=O)c1ccco1 to produce O=C(O[C@H]1CN2CCC1CC2)C(O)(c1ccccc1)c1ccco1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.