Using CCOC(=O)Cn1nc(C(=O)OCC)cc1OCc1cc(F)cc(C(F)(F)F)c1 to produce CCOC(=O)c1cc(OCc2cc(F)cc(C(F)(F)F)c2)n(CC(=O)O)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.