Synonyms: B-Nor-6,21-secohetisan-6-carboxylicacid, 2,6,9-trihydroxy-21-methyl-13-oxo-, g-lactone, (2a,6a)-;6,13b-Methano-3,10,13a-methenofuro[2',3':3,3a]indeno[1,2-b]azocine-2,7(3H,4H)-dione,decahydro-3,12-dihydroxy-8,10-dimethyl-5-methylene-, [3R-(3a,3aR*,6a,7ab,7bb,10a,12b,13aa,13ba,15R*)]-; Miyaconine