12517
In this Minireview , we summarized the reported heterocycles as nonclassical bioisosteres of alpha - amino acids , which include quinoxaline - 2 , 4 ( 1H ) - dione , quinoxaline - 2 , 3 ( 1H ) - dione and quinolin - 2 ( 1H ) - one , azagrevellin and azepine - derived structures .
 Chemical: alpha - amino acids; Chemical: quinoxaline - 2 , 4 ( 1H ) - dione; Chemical: quinoxaline - 2 , 3 ( 1H ) - dione; Chemical: quinolin - 2 ( 1H ) - one; Chemical: azagrevellin; Chemical: azepine
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: alpha - amino acids; Chemical: quinoxaline - 2 , 4 ( 1H ) - dione; Chemical: quinoxaline - 2 , 3 ( 1H ) - dione; Chemical: quinolin - 2 ( 1H ) - one; Chemical: azagrevellin; Chemical: azepine