Using CCCCn1c(N)c(NC(=O)Cc2ccc(NC(C)=O)cc2)c(=O)[nH]c1=O to produce CCCCn1c(=O)[nH]c(=O)c2[nH]c(Cc3ccc(NC(C)=O)cc3)nc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.