Using CCOC(=O)[C@H]1CC[C@H](O)CC1, Brc1ccc2[nH]ncc2c1 to produce CCOC(=O)[C@H]1CC[C@@H](n2ncc3cc(Br)ccc32)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.