| (40) cyrtophyllone A | R1 = 2H; | R2 = OCH3; | R3 = H |
| (55) 17-hydroxymandarone B | R1 = 2H; | R2 = H; | R3 = OH |
| (66) teuvincenone A | R1 = O; | R2 = OH; | R3 = H |
| (67) teuvincenone B | R1 = 2H; | R2 = OH; | R3 = H |
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