Using CC(C)(C)OC(=O)NC1CCCCC1N, CN(C(=O)CCl)c1ccc(C(=O)O)cc1 to produce CN(C(=O)CCl)c1ccc(C(=O)NC2CCCCC2NC(=O)OC(C)(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.