8904
Strict ethylenic or cyclopropyl analogues of the commercialized agonist agomelatine ( Valdoxan (R) ) were equipotent to agomelatine in binding bioassays .
 Chemical: ethylenic; Chemical: cyclopropyl; Chemical: agomelatine; Chemical: Valdoxan; Chemical: agomelatine
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: ethylenic; Chemical: cyclopropyl; Chemical: agomelatine; Chemical: Valdoxan; Chemical: agomelatine