4-(2-methoxyphenyl)-2,6-dioxopiperidine-3,5-dicarbonitrile

2-氰基己酸乙酯

2-丁基-2-氰基己酸乙酯

ethyl 2-cyano-5-methyl-2-(3-methylbut-2-enyl)hex-4-enoate

2-氰基-2-环庚亚基乙酸乙酯