Using COC(=O)c1ccc(-c2nc3cc(-c4c(F)cncc4F)c(-c4cccnc4)nc3[nH]2)cc1 to produce O=C(O)c1ccc(-c2nc3cc(-c4c(F)cncc4F)c(-c4cccnc4)nc3[nH]2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.