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Most importantly , compound 2 exhibited similar even more potent in vitro and in vivo antitumor activities relative to the approved HDAC inhibitor SAHA This article is protected by copyright .
 Chemical: SAHA
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: SAHA