Using O=c1n(CC(O)CCl)c(=O)n(CC2CO2)n1CC1CO1, [F-] to produce O=c1n(CC(O)CF)c(=O)n(CC2CO2)n1CC1CO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.