Using CCC(c1c(C)ccc2[nH]nc(-c3ccccc3)c12)N1C(=O)c2ccccc2C1=O to produce CCC(N)c1c(C)ccc2[nH]nc(-c3ccccc3)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.