Using CCOC(=O)c1c(C)nn2c(OCc3c(F)cccc3F)cc(CC)cc12 to produce CCc1cc(OCc2c(F)cccc2F)n2nc(C)c(C(=O)O)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.