Using [NH4+], CCOC(=O)C=CCn1c(C(=O)c2cc(C)cc(C#N)c2)c(C(C)C)c(=O)[nH]c1=O to produce Cc1cc(C#N)cc(C(=O)c2c(C(C)C)c(=O)[nH]c(=O)n2CC=CC(N)=O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.