7935
In this report , a series of 5 - hydroxytryptamine compounds were synthesized ; and most of these title compounds showed more potent inhibitory activity than compound JMC08 - 4 in the in vitro bioassay against these two enzymes .
 5 - hydroxytryptamine, JMC08 - 4
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 5 - hydroxytryptamine, JMC08 - 4