Using CCN(CC)CCSc1nnc(N)s1, CC(C)(C)c1cc(C(=O)O)cc(C(C)(C)C)c1 to produce CCN(CC)CCSc1nnc(NC(=O)c2cc(C(C)(C)C)cc(C(C)(C)C)c2)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.