Using CCC[Mg]Br, COc1cc(-c2ccccc2)ccc1C1=NC(C)(C)CO1 to produce CCCc1cc(-c2ccccc2)ccc1C1=NC(C)(C)CO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.