ethyl 3-oxo-4-tri(propan-2-yl)silyloxybutanoate

ethyl 3-[4-(trifluoromethyl)phenyl]prop-2-enoate

6b,7a-二氢-7H-环丙并[a]苊-7-羧酸乙酯

2-甲基吲哚-3-羧酸乙酯

3-(4-氰基苯基)-3-氧代丙酸乙酯