10-methoxy-1,5,9-trimethyl-(1R,4S,5R,8S,9R,10S,12R,13R)-11,14,15,16-tetraoxatetracyclo[10.3.1.04,13.08,13]hexadecane
3,12-Epoxy-12H-pyrano[4,3-j]-1,2-benzodioxepin, decahydro-10-methoxy-3,6,9- trimethyl-, (3R,5aS,6R,8aS,9R,10S,12R,12aR)-