Using CCCn1cnc2nc(-c3ccc(O)cc3)n(COCC[Si](C)(C)C)c2c1=O to produce CCCn1cnc2nc(-c3ccc(O)cc3)[nH]c2c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.