26850
Optimization of a 1 , 5 - dihydrobenzo [ b ] [ 1 , 4 ] diazepine - 2 , 4 - dione series of HIV capsid assembly inhibitors 1 : Addressing configurational instability through scaffold modification .
 1 , 5 - dihydrobenzo [ b ] [ 1 , 4 ] diazepine - 2 , 4 - dione
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 1 , 5 - dihydrobenzo [ b ] [ 1 , 4 ] diazepine - 2 , 4 - dione