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The aryltetralin-type lignan podophyllotoxin, the main agent present in the resin extracted from the rhizomes of different podophyllum species, possesses important antineoplastic and antiviral properties and has been widely used in diverse cultures since ancient times for medicinal purposes as a cathartic and antihelminthic agent. Today, podophyllotoxin serves as the starting material for the preparation...
The cyclolignan family of natural products includes compounds with important antineoplastic and antiviral properties such as podophyllotoxin and two of their semisynthetic derivatives, etoposide and teniposide. The latter are included in a wide variety of cancer chemotherapy protocols. Due to these biological activities, cyclolignans have been the objective of numerous studies focused to prepare better...
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