Using CCOC(=O)c1cc(-c2ccc(SC)cc2)n(-c2ccc(F)cc2)n1 to produce CSc1ccc(-c2cc(C(=O)O)nn2-c2ccc(F)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.