Using CCOC(=O)COc1ccc(OC(C)c2sc(-c3ccc(C(F)(F)F)cc3)nc2C)cc1C to produce Cc1cc(OC(C)c2sc(-c3ccc(C(F)(F)F)cc3)nc2C)ccc1OCC(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.