3,4,5-三苯基-4H-1,2,4-三唑

2,5-二苯基-1,3,4-恶二唑

2-苯基苯并噻唑

3,6-二苯基-1,2,4,5-四嗪

2-methyl-5-phenyl-1,3,4-thiadiazole