Using CC(C)N(CCSc1nnc(N)s1)C(C)C, CC(C)(C)c1ccc(C(=O)O)cc1 to produce CC(C)N(CCSc1nnc(NC(=O)c2ccc(C(C)(C)C)cc2)s1)C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.