Using COC(=O)c1c(NS(=O)(=O)c2ccccc2F)ccc2c1C(=O)CCC2, COC(OC)OC to produce COC(=O)c1c(NS(=O)(=O)c2ccccc2F)ccc2c1C(OC)=CCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.