Using CCOC(=O)c1cn2c3c(c(F)c(F)c(N)c3c1=O)OC1(CCC1)C2 to produce Nc1c(F)c(F)c2c3c1c(=O)c(C(=O)O)cn3CC1(CCC1)O2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.