Using CCOC(=O)CC(C)(C)n1cc(-c2ncnc3c2ccn3COCC[Si](C)(C)C)cn1 to produce CC(C)(CCO)n1cc(-c2ncnc3c2ccn3COCC[Si](C)(C)C)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.