(1S,2S,4aR,4bR,7S,9aS,10S,10aR)-methyl2,7-dihydroxy-1-methyl-8-methylene-13-oxododecahydro-4a,1-(epoxymethano)-7,9a-methanobenzo[a]azulene-10-carboxylate
(1S,2S,4aR,4bR,7S,9aS,10S,10aR)-methyl2,7-dihydroxy-1-methyl-8-methylene-13-oxododecahydro-4a,1-(epoxymethano)-7,9a-methanobenzo[a]azulene-10-carboxylate