Using CC(=O)N1CC=C(c2nccnc2C2CN(C(=O)c3nc4ccccc4[nH]3)C2)CC1 to produce CC(=O)N1CCC(c2nccnc2C2CN(C(=O)c3nc4ccccc4[nH]3)C2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.