ethyl 2-[1-(4-methoxyphenyl)pyrrolidin-2-ylidene]acetate

(2E)-二氢-2(3H)-呋喃亚基乙酸乙酯

ethyl 6-chloro-3-(4-methoxyphenyl)hex-2-enoate

ethyl (Z)-(2-tetrahydrofuranylidene)acetate

ethyl 2,3-dihydro-1H-pyrrolo[1,2-a]indole-4-carboxylate