Using O=C1CCC(=O)N1Br, CC(C)CCC[C@@H](C)CCC[C@@H](C)CCO to produce CC(C)CCC[C@@H](C)CCC[C@@H](C)CCBr, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.