111455-71-1 Bisoxireno[5,6:7,8]naphtho[2,3-b]furan-5(1bH)-one,decahydro-2b,7b-dimethyl-6-methylene-, [1aR-(1aa,1ba,2aa,2ba,3ab,6ab,7ab,7ba)]- 111455-72-2 4H-6a,9-Ethenofuro[2',3':3,4]cyclohepta[1,2-c][1,2]dioxol-2(3H)-one,4-(acetyloxy)-3a,5,6,9,9a,9b-hexahydro-6-hydroxy-6,9-dimethyl-3-methylene-,[3aR-(3aa,4a,6a,6aa,9a,9aa,9bb)]-