11928
Majority of the analogs inhibited cell proliferation and those functionalized with 3 , 4 - ( 1 , 3 - dioxolane ) and 3 , 4 - difluoro groups were identified as effective inhibitors in both the series .
 3 , 4 - ( 1 , 3 - dioxolane ), 3 , 4 - difluoro
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 3 , 4 - ( 1 , 3 - dioxolane ), 3 , 4 - difluoro