4-oxo-4-{[(3R,5aS,6R,8aS,9R,10S,12R,12aR)-3,6,9-trimethyldecahydro-3,12-epoxypyrano[4,3-j]-1,2-benzodioxepin-10-yl]oxy}butanoic acid
Butanedioic acid, mono((5aS,6R,8aS,9R,10S,12R,12aR)-decahydro-3,6,9-trimethyl-3,12-epoxy-12H-pyrano(4,3-j)-1,2-benzodioxepin-10-yl) ester