8274
We present here the structure - based design and synthesis of new cathepsin B inhibitors using the cocrystal structure of 5 - nitro - 8 - hydroxyquinoline in the cathepsin B active site .
 Chemical: 5 - nitro - 8 - hydroxyquinoline
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: 5 - nitro - 8 - hydroxyquinoline