75975-32-5

(1S,3R,3aR,4R,5R,6R,7aS)-6-[(5R,5aR,9aS)-5,9a-dimethyl-2,7-dioxo-5,5a,6,7,9,9a-hexahydro-2H-pyrano[3,4-b]oxepin-5-yl]-5-(formyloxy)-3-furan-3-yl-7a-hydroxy-3a-methyl-1-{[(2E)-2-methylbut-2-enoyl]oxy}-7-methylideneoctahydro-1H-inden-4-yl (2R,3S)-2-hydroxy-