29957
Optimization of the 3 - and 6 - positions on the indazole core of 6 resulted in 23c with improved Mps1 activity ( IC50 = 3 . 06 nM ) .
 Chemical: indazole
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: indazole