tert-butyl 4-oxopentanoate

1-甲基-2-亚甲基环己烷

methyl 3-(cyclopropylmethyl)-4,5-dimethoxybenzoate

2-碘甲基-4,4,5,5-四甲基-1,3,2-二氧硼戊环

4,5-亚甲基二硫代-1,3-二硫杂环戊烯-2-硫酮