3.
Name: 1H-Pyrano(3,4:6,7)indolizino(1,2-b)quinoline-3,14(4H,12H)-dione, 4-ethyl-4-hydroxy-9-methyl-
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6.
Name: 2H,10H-Benzo[1,2-b:3,4-b']dipyran-2,10-dione,8,9-dihydro-5-methoxy-8,9-dimethyl-6-(3- methyl-2-butenyl)-4-phenyl-,(8R,9R)-
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