(1S,3E,5S,6R,7S,8R,9R,10R,11S,12S,13E,15Z)-9,11,32,34-tetrahydroxy-5-methoxy-1,6,8,10,12,16,31-heptamethyl-22-(2-methylprop-2-yl)-17,28-dioxo-18,22-diaza-2,24,29-trioxapentacyclo[17.9.6.020,25.026,33.027,30]tetratriaconta-3,13,15,19(34),20(25),26(27),30(31),32-octaen-7-yl acetate