Using CC(CCCCOS(C)(=O)=O)=C(F)F, O=C(O)c1ccc2nsnc2c1 to produce CC(CCCCOC(=O)c1ccc2nsnc2c1)=C(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.