Using CCOC(=O)c1c(C(C)(C)c2ccc(OC(C)C)c(OC)c2)[nH]c2cc(C#N)ccc12 to produce COc1cc2c(cc1O)C(=O)c1c([nH]c3cc(C#N)ccc13)C2(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.