Using CC[C@H](C)[C@@H](C=O)NS(=O)(=O)c1ccc(Cl)s1, BrC1=CCCCC1 to produce CC[C@H](C)[C@H](NS(=O)(=O)c1ccc(Cl)s1)[C@@H](O)C1C=CCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.