Using Cc1c(CN2CCc3c(c4ccccc4n3C)C2=O)ncn1C(=O)OCc1ccccc1 to produce Cc1[nH]cnc1CN1CCc2c(c3ccccc3n2C)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.