Using COC(=O)c1nc(C)n(C)c1C(=O)NCCc1nc2ccccc2n1C to produce Cc1nc(C(=O)O)c(C(=O)NCCc2nc3ccccc3n2C)n1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.