Using C[Mg+], Cn1cncc1C(=O)c1ccc(C#N)c(Oc2ccc3ccccc3c2)c1 to produce Cn1cncc1C(C)(O)c1ccc(C#N)c(Oc2ccc3ccccc3c2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.