Using CCOC(=O)COc1ccc(SCC=C(c2sccc2C)c2sccc2C)cc1C(F)(F)F to produce Cc1ccsc1C(=CCSc1ccc(OCC(=O)O)c(C(F)(F)F)c1)c1sccc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.