Using CC(C)(C)Cc1c(CC(C)(C)C(=O)O)n(Cc2ccc(Cl)cc2)c2ccc(OCc3ccc4sc(Cl)c(Cl)c4n3)cc12 to produce OCc1ccc2sc(Cl)c(Cl)c2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.