Synonyms: Ophiobola-3,6,19-trien-5-one,14,18-epoxy-8,25-dihydroxy-, (8b,18R)-; Spiro[dicyclopenta[a,d]cyclooctene-3(7H),2'(3'H)-furan]-7-one,1,2,3a,4,4',5,5',9a,10,10a-decahydro-5-hydroxy-6-(hydroxymethyl)-3',9,10a-trimethyl-5'-(2-methyl-1-propenyl)-,(2'S,3'S,3aR,5S,5'R,9aR,10aR)- (9CI); Ophiobolin J;Spiro[dicyclopenta[a,d]cyclooctene-3(7H),2'(3'H)-furan]-7-one,1,2,3a,4,4',5,5',9a,10,10a-decahydro-5-hydroxy-6-(hydroxymethyl)-3',9,10a-trimethyl-5'-(2-methyl-1-propenyl)-,[3S-[3a(3'R*,5'S*),3aa,5b,9ab,10ab]]-