1 9FR (6as,8ar,12as,12br,13ar)-5,6a,9,9,12a,13a-hexamethyl-7,8,8a,9,11,12,12a,12b,13,13a-decahydro-3h-benzo[a]furo[3,4-j]xanthene-3,4,10(1h,6ah)-trione 1.000 2 9FU (6as,8ar,12as,12br,13ar)-5,6a,9,9,12a,13a-hexamethyl-7,8,8a,9,12a,12b,13,13a-octahydro-3h-benzo[a]furo[3,4-j]xanthene-3,4,10(1h,6ah)-trione 1.000 3 0CC Andiconin D 0.788