Using Nc1ncnc2[nH]cnc12, CC(C)(C)OC(=O)N1CCCC(O)C1 to produce CC(C)(C)OC(=O)N1CCCC(n2cnc3c(N)ncnc32)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.