Using C=C(CO)C[C@](C)(O)[C@H]1CC[C@H]2[C@@H](O[Si](C)(C)C(C)(C)C)CCC[C@@]21C, ClC(Cl)(Cl)Cl to produce C=C(CCl)C[C@](C)(O)[C@H]1CC[C@H]2[C@@H](O[Si](C)(C)C(C)(C)C)CCC[C@@]21C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.