Using CC(C)(C)OC(=O)N1CCC[C@H]1C(=O)O, Cc1c(N)cccc1C(=O)O to produce Cc1c(NC(=O)[C@@H]2CCCN2C(=O)OC(C)(C)C)cccc1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.