Synonyms: 2H-Oxireno[7,8]naphtho[4,5-bc:1,2-c']difuran-3,8-dione, 1a,2a,4a,4b,5,6,8b,8c-octahydro-2,5-dihydroxy-2a,8b-dimethyl-6-(1-methylethyl)-,(1aR,2R,2aR,4aS,4bR,5R,6S,8bS,8cS)- (9CI); 2H-Oxireno[7,8]naphtho[4,5-bc:1,2-c']difuran-3,8-dione,1a,2a,4a,4b,5,6,8b,8c-octahydro-2,5-dihydroxy-2a,8b-dimethyl-6-(1-methylethyl)-, [1aR-(1aa,2b,2aa,4aa,4ba,5b,6b,8bb,8ca)]-; Nagilactone J