The configuration of several keto‐cyclolignans related to podophyllotoxin has been reviewed. Under basic catalysis, the configuration at the C‐atom in α‐position to the lactone carbonyl group in podophyllotoxone is inverted instead of the C‐atom in α‐position to the ketone group, as it has been reported.
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15-Hydroxyeremantholide B and Derivatives from Eremanthus arboreus.-Eremantholide B derivatives (I) and (II) are isolated from the aerial parts of title species. -(VICHNEWSKI, WALTER; SKROCHY, C. A.; NASI, ANA MARIA T. T.; CALLEGARI LOPEZ, J. L.; HERZ,
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