Using C1COCCO1, CC(C)(C)[Si](C)(C)OCc1cnc(Cl)c(Cl)c1 to produce C=Cc1ncc(CO[Si](C)(C)C(C)(C)C)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.