Using COC(=O)CC1(Cn2c(C(=O)c3cc(C)cc(C#N)c3)c(C(C)C)c(=O)[nH]c2=O)CC1 to produce Cc1cc(C#N)cc(C(=O)c2c(C(C)C)c(=O)[nH]c(=O)n2CC2(CC(=O)O)CC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.