Using CSCC[C@H](O)[C@H](O)[C@@H](N)Cc1ccccc1, CCCN(CCC)C(=O)c1cc(Br)cc(C(=O)O)c1 to produce CCCN(CCC)C(=O)c1cc(Br)cc(C(=O)N[C@@H](Cc2ccccc2)[C@@H](O)[C@H](O)CCSC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.