Using C[Mg]I, C[C@]12CCC(=O)C=C1C=C[C@@H]1[C@@H]2CC[C@]2(C)[C@@H](O)C[C@H]3C[C@@]312 to produce C[C@@H]1CC2=CC(=O)CC[C@]2(C)[C@H]2CC[C@]3(C)[C@@H](O)C[C@H]4C[C@]43[C@H]12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.