Using COC(=O)C1C2CCCC(CC2)C1Nc1nc(-c2n[nH]c3ncc(F)cc23)ncc1F to produce O=C(O)C1C2CCCC(CC2)C1Nc1nc(-c2n[nH]c3ncc(F)cc23)ncc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.