(4aS,6aS,12aS,12bS)-4,4,6a,12b-Tetramethyl-1,3,4,4a,5,6,6a,12b-octahydro-2H,12H-benzo[a]xanthene-9,10,12a-triol

3,4-di-benzyloxy-6-(7'-drimen-11'-ylidene)-2,4-cyclohexadienone

acetate of 2-(8α,9α-epoxy-driman-11-yl)-4,5-dibenzyloxyphenyl

9α-hydroxy-di-O-benzylpuupehenol

(6aS,12aR,12bS)-4,4,6a,12b-tetramethyl-2,3,4,4a,5,6,6a,12,12a,12b-decahydro-1Hbenzo[a]xanthene-9,10-diol