8,12,45,46,47,48,50-Heptaoxaheptacyclo[39.3.1.11,5.19,13.115,19.125,29.129,33]pentacont-23-ene-7,35-dione,3,37-bis(acetyloxy)-10,14,15,17,27,43-hexahydroxy-11-(4-hydroxy-2-methylene-5,7-octadienyl)-31-methoxy-18,36,38,43,49-pentamethyl-39-methylene-,[1S-[