Using Cl[Mg]C1CCCCC1, C=C[C@H](OCc1ccccc1)[C@H]1CO1 to produce C=C[C@H](OCc1ccccc1)[C@H](O)CC1CCCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.