Using COc1cccc(N(C)c2nc(NC(=O)C(C)(C)C)nc3[nH]c4ccccc4c23)c1 to produce COc1cccc(N(C)c2nc(N)nc3[nH]c4ccccc4c23)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.