16665
Various substituted indazole and benzoxazolone amino acids were investigated as d - tyrosine surrogates in highly potent CGRP receptor antagonists .
 Chemical: indazole; Chemical: benzoxazolone; Chemical: amino acids; Chemical: d - tyrosine
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: indazole; Chemical: benzoxazolone; Chemical: amino acids; Chemical: d - tyrosine