136176-62-0 (2S,5S,7'S,8'S)-5-(furan-3-yl)-8a'-methoxy-7'-methyl-2',3',4,4',5,5',5a',7',8',8a'-decahydrospiro[furan-3,6'-naphtho[1,8-bc]furan]-2,8'-diyl diacetate 1391-38-4 (3R,3aS,5aR,5bR,9aR,11aR,11bS,12S,12aS,12bR,13aS)-3-furan-3-yl-12-hydroxy-3a,5b,9a,12a-tetramethyl-4,5,5a,5b,9a,10,11a,11b,12,12a-decahydro-3H-oxepino[2',3',4':3,4][1]benzofuro[6,5-f]oxireno[d]isochromene-1,8(3aH,13aH)-dione