10101
Now , inhibition studies showed that fidarestat was indeed 1300 - fold more selective for AR as compared to AKR1B10 , while the change of Val to Leu ( found in AR ) caused a 20 - fold decrease in the IC50 value with fidarestat .
 Chemical: fidarestat; Chemical: Val; Chemical: Leu; Chemical: fidarestat
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: fidarestat; Chemical: Val; Chemical: Leu; Chemical: fidarestat