Using C[Si](C)(C)CCOCCl, O=C1CCC(c2cc(F)ccc2F)(S(=O)(=O)c2ccc(Cl)cc2)CC1 to produce C[Si](C)(C)CCOCC1CC(c2cc(F)ccc2F)(S(=O)(=O)c2ccc(Cl)cc2)CCC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.