Using O=C(O)c1cccc(S(=O)(=O)Nc2c(F)cc(F)cc2F)c1, CC1(C)OCC(C(O)CN)O1 to produce CC1(C)OCC(C(O)CNC(=O)c2cccc(S(=O)(=O)Nc3c(F)cc(F)cc3F)c2)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.