2-acetyl-3-hydroxy-3-methyl-2,2-diphenyloxetane

N-ethyl-N-(2-hydroxy-1-methyl-2,2-diphenylethyl)acetamide

2,2,5,5-四甲基-3-己炔

tert-butyl 4,4-dimethylpent-2-ynoate

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