Using C[Mg]Cl, N#C/C=C1\c2ccccc2CCc2cc(C=O)ccc21 to produce CC(O)c1ccc2c(c1)CCc1ccccc1/C2=C\C#N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.