(4S,5R)-5-((S)-sec-Butyl)-4-((E)-6-carboxy-4-methylene-hex-1-enyl)-2,2-dimethyl-[1,3]dioxolane-4-carboxylic acid methyl ester

(4S,5R)-5-((S)-sec-Butyl)-4-[(E)-7-((R)-4-hydroxy-6-methyl-2-oxo-5,6-dihydro-2H-pyran-3-yl)-4-methylene-7-oxo-hept-1-enyl]-2,2-dimethyl-[1,3]dioxolane-4-carboxylic acid