Using O=C(N1CCCC(c2nc(-c3cnc(-c4ccccc4)nc3)c[nH]2)C1)C(F)(F)F to produce OC(N1CCCC(c2nc(-c3cnc(-c4ccccc4)nc3)c[nH]2)C1)C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.