Showing structure for (2r,3r,4s,5s,6r)-2-{[(3r,4as,6as,7r,10ar,10bs)-3-ethenyl-3,4a,7,10a-tetramethyl-octahydro-1h-naphtho[2,1-b]pyran-7-yl]methoxy}-6-(hydroxymethyl)oxane-3,4,5-triol