Using Cc1nnc2c(NC(=O)OC(C)(C)C)cc(N(C)[C@@H](C)c3ccccc3)nn12 to produce Cc1nnc2c(N)cc(N(C)[C@@H](C)c3ccccc3)nn12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.