(3S,3aS,6aS,9S,10R,10aR)-4-formyl-10-hydroxy-7,7-dimethyl-1-oxo-3-((tetrahydro-2H-pyran-2-yl)oxy)-3,3a,6,6a,7,8,9,10-octahydro-1H-naphtho[1,8a-c]furan-9-yl (2R)-2-((2-methoxyethoxy)methoxy)octanoate