Using Cc1cn(COCC[Si](C)(C)C)c2cnn(COCc3ccccc3)c(=O)c12 to produce Cc1cn(COCC[Si](C)(C)C)c2cn[nH]c(=O)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.