Using COCC(O)(C(Nc1cc(F)cc2[nH]c(=O)ccc12)c1ccc(OC)c(F)c1Cl)C(F)(F)F to produce O=c1ccc2c(NC(c3ccc(O)c(F)c3Cl)C(O)(CO)C(F)(F)F)cc(F)cc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.