Using CC(C)CS(=O)(=O)c1nc(C(=O)O)ccc1C1CC1, CC1(C)CCCN1 to produce CC(C)CS(=O)(=O)c1nc(C(=O)N2CCCC2(C)C)ccc1C1CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.