Using CCOC(=O)c1ccc(C(C)Oc2cc(C)c(-c3ccc(C(C)(C)C)cc3)c(C)c2)s1 to produce Cc1cc(OC(C)c2ccc(C(=O)O)s2)cc(C)c1-c1ccc(C(C)(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.