10790
This review emphasizes recent perspective and advances in the therapeutically active 1H - 1 , 2 , 3 - , 2H - 1 , 2 , 3 - , 1H - 1 , 2 , 4 - and 4H - 1 , 2 , 4 - triazole derivative patents between 2008 and 2011 , covering the development of new chemical entities and new pharmaceuticals .
 1H - 1 , 2 , 3 - , 2H - 1 , 2 , 3 - , 1H - 1 , 2 , 4 - and 4H - 1 , 2 , 4 - triazole
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 1H - 1 , 2 , 3 - , 2H - 1 , 2 , 3 - , 1H - 1 , 2 , 4 - and 4H - 1 , 2 , 4 - triazole