18824
IKM - 159 was developed and identified as a member of a new class of heterotricyclic glutamate analogues that act as AMPA receptor - selective antagonists .
 Chemical: IKM - 159; Chemical: glutamate; Chemical: AMPA
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: IKM - 159; Chemical: glutamate; Chemical: AMPA