异丁醛

2,2,4,4-tetramethyl-3t-(toluene-4-sulfonyloxy)-cyclobutan-r-ol

2,2,4,4-tetramethyl-3c-(toluene-4-sulfonyloxy)-cyclobutan-r-ol

2-(2,2-dimethyl-3-phenoxy-cyclopropyl)-propan-2-ol

3-羟基-2,2,4-三甲基-戊酸乙酯