12971
S9a was superior to the first generation compound Canventol , which was superior to the natural compound sarcophytol A , demonstrating that further structure-based enhancement of potency of these compounds is feasible.
 None
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 None