Using CC(C)(C)OC(=O)NCC(=O)O, Nc1nc2cc(OS(=O)(=O)c3ccc(NC4CCCC4)cc3)ccc2[nH]1 to produce CC(C)(C)OC(=O)NCC(=O)Nc1nc2cc(OS(=O)(=O)c3ccc(NC4CCCC4)cc3)ccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.