9817
Therefore , new potent inhibitors with the adamantyl group replaced by a substituted phenyl group were synthesized to presumptively offer better pharmacokinetic ( PK ) properties .
 Chemical: adamantyl; Chemical: phenyl
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: adamantyl; Chemical: phenyl