Using Cn1nnc(-c2ccccn2)c1C=O, Cc1nc(C)c(C(=O)O)s1 to produce Cc1nc(CC(O)c2c(-c3ccccn3)nnn2C)sc1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.