Using CC(c1ccccc1)n1cc(-c2cn(C(=O)OC(C)(C)C)c3ncc(-c4cnn(C)c4)cc23)nn1 to produce CC(c1ccccc1)n1cc(-c2c[nH]c3ncc(-c4cnn(C)c4)cc23)nn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.