19926
Nonclassical antifolates , part 3 : Synthesis , biological evaluation and molecular modeling study of some new 2 - heteroarylthio - quinazolin - 4 - ones .
 Chemical: 2 - heteroarylthio - quinazolin - 4 - ones
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: 2 - heteroarylthio - quinazolin - 4 - ones