18717
New 2 - benzylsulfanyl - nicotinic acid based 1 , 3 , 4 - oxadiazoles : Their synthesis and biological evaluation .
 2 - benzylsulfanyl - nicotinic acid, 1 , 3 , 4 - oxadiazoles
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 2 - benzylsulfanyl - nicotinic acid, 1 , 3 , 4 - oxadiazoles