aldehyde compound

(Z)-methyl 7-((S,E)-5-((E)-oct-2-en-1-ylidene)-4-oxocyclopent-2-en-1-yl)hept-5-enoate

(1R,4S)-4-[(tert-butyldimethylsilyl)oxy]-2-cyclopentene-1-yl acetate

(1S,4R)-顺式-4-乙酰氧基-2-环戊烯-1-醇

methyl [(1S,4S)-4-[(tert-butyldimethylsilyl)oxy]-2-cyclopenten-1-yl]acetate