4-propan-2-ylheptan-4-ol

ethyl 2,2-dimethylbutanoate

ethyl 3-methyl-2-phenylbut-2-enoate

1,4-二苯基-3,3-二甲基氮杂环丁烷-2-酮

2-hydroxy-3-methyl-2-propan-2-ylbutanoic acid