Using CC(C)(C)n1ncc(OCc2ccc(COCCO[Si](C)(C)C(C)(C)C)cc2)c(Cl)c1=O to produce CC(C)(C)n1ncc(OCc2ccc(COCCO)cc2)c(Cl)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.