Using C[C@@H]1NC(C)(C)COC1=O, Cc1ccc([Mg]Br)cc1 to produce Cc1ccc([C@]2(O)OCC(C)(C)N[C@H]2C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.