7120
The electron withdrawing substituents at position 4 of phenyl ring of 5 enhances the activity possibly due to an increase in the strength of hydrogen bonding property of hydroxyl group of allylic alcohol moiety .
 Chemical: phenyl; Chemical: hydrogen; Chemical: hydroxyl; Chemical: allylic alcohol
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: phenyl; Chemical: hydrogen; Chemical: hydroxyl; Chemical: allylic alcohol