Using C=C1COc2c(F)c(F)cc3c(=O)c(C(=O)OCC)cn1c23 to produce C=C1COc2c(F)c(F)cc3c(=O)c(C(=O)O)cn1c23, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.