Synonyms: Spiro[furan-3(2H),2'-[2H]inden]-2-one,decahydro-3'a,4'-dimethyl-4-methylene-, [2'R-(2'a,3'aa,4'a,7'aa)]-; Spiro[furan-3(2H),2'-indan]-2-one,3'a,4,4',5,5',6',7',7'ab-octahydro-3'ab,4'b-dimethyl-4-methylene-, (2'R)-(8CI); (+)-Bakkenolide A; Bakkenolid A; Bakkenolide A; Fukinanolid;Fukinanolide; NSC 292655