8271
Development of new cathepsin B inhibitors : combining bioisosteric replacements and structure - based design to explore the structure - activity relationships of nitroxoline derivatives .
 Chemical: nitroxoline
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: nitroxoline