3H-Dicyclohepta[e,e']cycloundeca[1,2-b:5,6-b']dipyran-3,15(12H)-dione,6a,7,10,11,11a,18a,19,20,20a,21-decahydro-4,16,19-trihydroxy-1,6a,10,10,13,18a-hexamethyl-,[6aR-(6aR*,8E,11aR*,18aR*,19S*,20aR*)]-