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Synthesis , preliminary structure - activity relationships , and in vitro biological evaluation of 6 - aryl - 3 - amino - thieno [ 2 , 3 - b ] pyridine derivatives as potential anti - inflammatory agents .
 Chemical: 6 - aryl - 3 - amino - thieno [ 2 , 3 - b ] pyridine
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: 6 - aryl - 3 - amino - thieno [ 2 , 3 - b ] pyridine