16β-(Acetyloxy)-14-hydroxy-3-oxo-5β-card-20(22)-enolide
16β-(Acetyloxy)-14-hydroxy-3-oxo-5β-card-20(22)-enolide ??
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16β-(Acetyloxy)-14-hydroxy-3-oxo-5β-card-20(22)-enolide ?? ?? ? ???
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16β-(Acetyloxy)-14-hydroxy-3-oxo-5β-card-20(22)-enolide ?? ??
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