Using C[Mg]I, C=C(C)C(CC/C(C)=C/CCC(C)=CC=O)O[Si](C)(C)C(C)(C)C to produce C=C(O)C=C(C)C=C/C=C(\C)CCC(O[Si](C)(C)C(C)(C)C)C(=C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.