(rel 1S,3R,4R,7R)-3-(3,4-dihydroxy-4-methylpent-3-enyl)-1, 3, 7-trimethyl-2-oxabicyclo(2, 2,1)heptane
(rel 1s,3r,4r,7r)-3-(3,4-dihydroxy-4-methylpent-3-enyl)-1, 3, 7-trimethyl-2-oxabicyclo(2, 2,1)heptane