Using CCOC(=O)C(=CNC(C)CO)C(=O)c1c(F)c(F)c(C2CC2)c(F)c1F to produce CCOC(=O)c1cn(C(C)CO)c2c(F)c(C3CC3)c(F)c(F)c2c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.