6,7α-epoxyisodrimenin

(5α,6α,10β)-(+/-)-5,6-oxyisodrimen

(4α,4aβ,8aβ)-3,4,4a,7,8,8a-hexahydro-4a,5,8a-trimethyl-4-hydroxy-2-(hydroxymethyl)-1-naphthoic acid γ-lactone