22470
Several of these derivatives exhibit a good inhibition of HCV , such as compound 3 ( EC50 = 0 . 68nmol / mL , SI = 33 . 86 ) , compound 2d ( EC50 = 15nmol / mL , SI = 12 ) and compound 5 ( EC50 = 33nmol / mL , SI > 10 . 91 ) .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None