Using O=C(Nc1cccc2[nH]c(-c3cccc(C(F)(F)F)c3)nc12)OCc1ccccc1 to produce Nc1cccc2[nH]c(-c3cccc(C(F)(F)F)c3)nc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.