(2S,3R,E)-3-((2-methoxyethoxy)methoxy)-6-oxo-6-(((S)-4-oxo-4-(2,2,2-trichloroethoxy)butan-2-yl)oxy)hex-4-en-2-yl (4R,5S,E)-4-hydroxy-5-((2-methoxyethoxy)methoxy)hex-2-enoate