Showing structure for (1r,3s,5s,6ar,7r,8r,9s,10s,10ar)-1,3-bis(acetyloxy)-7-[(2z)-3-ethenyl-4-hydroxybut-2-en-1-yl]-5,10-dihydroxy-7,8-dimethyl-1h,3h,5h,6h,6ah,8h,9h,10h-naphtho[1,8a-c]furan-9-yl hexadecanoate