| Synonyms: | HANDELIN; YEJUHUALACTONE;handelin;Yejuhualactone;Spiro[azuleno[4,5-b]furan-3(2H),10'-[4H-6a,9]ethanoazuleno[4,5-b]furan]-2,2'(3'H)-dione, 4-(acetyloxy)-3a,3'a,4,5,5',6,6',6a,7,9',9a,9'a,9b,9'b-tetradecahydro-6,6'-dihydroxy-6,6',9,9'-tetramethyl-3'-methylene-, (3R,3aR,3'aS,4S,6R,6'R,6aR,6'aR,9'R,9aR,9'aS,9bR,9'bS)-;6,6'-dihydroxy-6,6',9,9'-tetramethyl-3'-methylene-2,2'-dioxo-2',3a,3',3a',4,5,5',6,6a,6',7,9a,9b,9',9a',9b'-hexadecahydro-4'H-spiro[azuleno[4,5-b]furan-3,10'-[6a,9]ethanoazuleno[4,5-b]furan]-5-yl acetate |