25261
The most active compound , 3 , 3 - dibromoflavanone ( 31 ) , a synthetic flavonoid , presented a significant inhibition of the binding of the selective mu opioid ligand [ ( 3 ) H ] DAMGO , with a Ki of 0 . 846 +/- 0 . 263 mu M .
 Chemical: 3 , 3 - dibromoflavanone; Chemical: flavonoid; Chemical: [ ( 3 ) H ] DAMGO
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: 3 , 3 - dibromoflavanone; Chemical: flavonoid; Chemical: [ ( 3 ) H ] DAMGO