Using c1cc2cnc(-c3cnn(C(CC4CC4)C4CCCC4)c3)nc2[nH]1 to produce CCCC(C1CCCC1)n1cc(-c2ncnc3[nH]ccc23)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.