8H,9aH-Oxireno[c]pyrano[2'',3'':2',3']furo[3',4':5,6]naphtho[1,2-d]pyran-1,8,13(11H,14aH)-trione, 3-(3-furanyl)-3,3a,4,5,5a,11a,12,13a-octahydro-3a,11,11,13a-tetramethyl-, (3S,3aS,5aR,5bS,9aR,11aR,13aR,13bR,14aS)-
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(3S,3aS,5aR,5bS,9aR,11aR,13aR,13bR,14aS)-3-(3-Furyl)-3a,11,11,13a-tetramethyl-3,3a,4,5,5a,11a,12,13a-octahydro-8H-oxireno[d]pyrano[2',3':3,3a][2]benzofuro[5,4-f]isochromene-1,8,13(11H,14aH)-trione
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