ethyl 2-((1R,2R,5S)-2-((R,E)-3-acetoxyoct-1-en-1-yl)-5-((tert-butyldimethylsilyl)oxy)-3-oxocyclopentyl)acetate

ethyl 2-((1R,2R,3R,5S)-2-((R,E)-3-acetoxyoct-1-en-1-yl)-5-((tert-butyldimethylsilyl)oxy)-3-hydroxycyclopentyl)acetate