Spiro[furo[2',3':5,6]cyclohepta[1,2-b]pyran-6(2H),6'(1'aH)-[5H]oxireno[4,5]cyclohepta[1,2-b]furan]-2,5'-dione,7-acetyl-2',3,3',3'a,3a,4,4a,6'a,7',7'a,8a,9,10,10a-tetradecahydro-8a-hydroxy-2',9-dimethyl-3-methylene-1'a-[(1E)-3-oxo-1-buten-1-yl]-,(1'aR,2'R,3'aS,3aR,4aR,6R,6'aR,7'aR,8aR,9S,10aR)-;Pungiolide A;Spiro[furo[2',3':5,6]cyclohepta[1,2-b]pyran-6(2H),6'(1'aH)-[5H]oxireno[4,5]cyclohepta[1,2-b]fu...;Spiro[furo[2',3':5,6]cyclohepta[1,2-b]pyran-6(2H),6'(1'aH)-[5H]oxireno[4,5]cyclohepta[1,2-b]furan]-2,5'-dione,7-acetyl-2',3,3;Spiro[furo[2',3':5,6]cyclohepta[1,2-b]pyran-6(2H),6'(1'aH)-[5H]oxireno[4,5]cyclohepta[1,2-b]furan]-2,5'-dione,7-acetyl-2',3,3',3'a,3a,4,4a,6'a,7',7'a,8a,9,10,10a-tetradecahydro-8a-hydroxy-2',9-dimethy;Spiro[furo[2',3':5,6]cyclohepta[1,2-b]pyran-6(2H),6'(5'H)-[2H]oxireno[4,5]cyclohepta[1,2-b]furan]-2,5'-dione,7-acetyl-1'a,3,3',3a,3'a,4,4;Spiro[furo[2',3':5,6]cyclohepta[1,2-b]pyran-6(2H),6'(5'H)-[2H]oxireno[4,5]cyclohepta[1,2-b]furan]-2,5'-dione,7-acetyl-1'a,3,3',3a,3'a,4,4a,6'a,7',7'a,8a,9,10,10a-tetradecahydro-8a-hydroxy-2',9-dimethyl-3-methylene-1'a-(3-oxo-1-butenyl)-,[3aR-[3aa,4aa,6b[1'aR*(E),2'R*,3'aS*,6'aR*,7'aR*],8ab,9b,10aa]]-;Pungiolide B
