Using O=C(O)/C=C/c1ccc(-c2nc3c(=O)n(CC4CCCCC4)c(=O)n(CC4CCCCC4)c3[nH]2)cc1 to produce O=C(O)CCc1ccc(-c2nc3c(=O)n(CC4CCCCC4)c(=O)n(CC4CCCCC4)c3[nH]2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.