Using COc1ccc2c(c1)CCC([C@@H]1CC[C@H](O)[C@@]1(C)CC(=O)O)C2, COC(C)(C)OC to produce COC(=O)C[C@]1(C)[C@@H](O)CC[C@H]1C1CCc2cc(OC)ccc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.