Using CN(C)C=O, CCCc1c(Cc2ccc(-c3ccccc3C#N)cc2)c(=O)n(CC(O)C(C)(C)C)c2nc(C)nn12 to produce CCCc1c(Cc2ccc(-c3ccccc3C#N)cc2)c(=O)n(CC(OC)C(C)(C)C)c2nc(C)nn12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.