Using CN(c1nc(Nc2cnn(C)c2)ncc1Cl)C1CC2CN(C(=O)OC(C)(C)C)CC2C1 to produce CN(c1nc(Nc2cnn(C)c2)ncc1Cl)C1CC2CNCC2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.