Using CCC(=O)Nc1ccc(Sc2nc(Nc3cc(C)n[nH]3)cc(C(=O)OC)n2)cc1 to produce CCC(=O)Nc1ccc(Sc2nc(CO)cc(Nc3cc(C)n[nH]3)n2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.