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A series of novel , potent 4 - aminothienopyridine B - Raf kinase inhibitors was designed and synthesized using knowledge - based design .
 Chemical: 4 - aminothienopyridine
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: 4 - aminothienopyridine