Using CC1=NN(c2ccc3c(=O)n(CC(C)C)c(CNC(=O)OC(C)(C)C)c(-c4ccccc4)c3c2)CO1 to produce CC1=NN(c2ccc3c(=O)n(CC(C)C)c(CN)c(-c4ccccc4)c3c2)CO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.