苯频哪醇

1,5,6-Tri-tert-butyl-3,3-diphenyl-2-oxabicyclo(2.2.0)hex-5-en-4-carbonsaeure-tert-butylester

2,2,5,5-四甲基-3-己炔

4,4-dimethylpent-2-ynoic acid

trans-4-tert-Butyl-2,2,7,7-tetramethyl-3-octen-5-in