ethyl (2E,4R,5R)-4-hydroxy-5-[(methylsulfonyl)oxy]-4-methylhex-2-enoate

ethyl 2-((2S,4R,5S,6S)-5,6-dimethyl-2-phenyl-1,3-dioxan-4-yl)acetate

(2E,4E)-4-甲基-2,4-己二烯酸乙酯

ethyl (E)-3-[(2S,3S)-2,3-dimethyloxiran-2-yl]prop-2-enoate

ethyl (2E,4R,5S)-5-hydroxy-4-methylhex-2-enoate