Using C#CCC(C1CCCC1)n1cc(-c2ncnc3[nH]ccc23)cn1 to produce CCCC(C1CCCC1)n1cc(-c2ncnc3[nH]ccc23)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.