Using NC1=NCCN1, CC(=CC(=O)NC(C)(C)C)OC(=O)c1nc(Cl)c(N)nc1N to produce Nc1nc(N)c(C(=O)NC2=NCCN2)nc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.