Using CC(CCOS(C)(=O)=O)=C(F)F, Cc1nc(C2CCCCC2)sc1C(=O)O to produce CC(CCOC(=O)c1sc(C2CCCCC2)nc1C)=C(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.