Using C=CCOC[C@H]1C[C@@](CC(C)C)(C(=O)O)N(C(=O)c2ccc(C(C)(C)C)c(OC)c2)[C@H]1c1nccs1 to produce CCCOC[C@H]1C[C@@](CC(C)C)(C(=O)O)N(C(=O)c2ccc(C(C)(C)C)c(OC)c2)[C@H]1c1nccs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.