20021
Developed synthetic protocol will be useful for economical and eco - friendly synthesis of potent antileishmanial and antifungal 3 , 3 ' - diindolylmethane class of compounds .
 Chemical: 3 , 3 ' - diindolylmethane
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: 3 , 3 ' - diindolylmethane