Using Fc1ccc(S)cc1, Cc1ccc(S(=O)(=O)Oc2ccc3c(c2)CCCC3=O)cc1 to produce O=C1CCCc2cc(Sc3ccc(F)cc3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.