24559
Cytotoxic , antitopoisomerase II alpha , and anti - HIV - 1 activities of compounds 1 - 7 , 9 , and 10 were investigated .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None