Fused Xanthone Derivatives as Antiproliferative Agents

ISSN: 1875-5992 (Online)
ISSN: 1871-5206 (Print)

Volume 17, 14 Issues, 2017

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Anti-Cancer Agents in Medicinal Chemistry

Formerly: Current Medicinal Chemistry - Anti-Cancer Agents

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Michelle Prudhomme
Institut de Chimie de Clermont-Ferrand
Université Clermont Auvergne

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Fused Xanthone Derivatives as Antiproliferative Agents

Anti-Cancer Agents in Medicinal Chemistry, 9(1): 77-98.

Author(s): Nicole Pouli and Panagiotis Marakos.

Affiliation: University of Athens, Department of Pharmacy, Division of Pharmaceutical Chemistry, Panepistimiopolis- Zografou, Athens 15771, Greece.


Xanthones have been isolated from several natural sources, mainly belonging in Guttiferae and Gentianaceae families as secondary plant metabolites and many of them are endowed with diverse pharmacological properties. We have focused in the study of cytotoxic fused xanthone derivatives, having in mind that some furano- and pyranoxanthone natural products are particularly interesting, in terms of cytotoxic potency and novelty in their mechanism of action and could serve as lead compounds for the development of clinically effective anticancer agents. In this review, a general classification has been attempted based on the type of ring fusion, in such a way that natural compounds as well as synthetic derivatives are discussed. The furanoxanthone psorospermin is a highly promising isolated xanthone derivative exhibiting significant cytotoxicity through a novel mechanism of action, being an irreversible topoisomerase II poison and it was selected for further development as an antineoplastic agent. An important number of pyranoxanthones have been synthesized using as lead compound the acridone alkaloid acronycine. Adducts on the double bond of these compounds provided cytotoxic derivatives possessing cell-cycle selectivity. The synthesis of pyranoxanthones bearing aminosubstituted side-chains resulted in compounds that exhibit markedly improved cytotoxicity towards leukemic and solid tumor cell lines. Azabioisosters of the aminoderivatives exhibit solid tumor selectivity whereas additional pyrazole or/and benzene ring fusion has been incorporated into the xanthone skeleton and resulted in compounds with promising activity, which retain full antiproliferative activity against P-glycoprotein-overexpressing cells. Gambogic acid, a highly effective anticancer drug candidate with low toxicity to normal tissue, together with structurally related representative analogues are also mentioned.


Antiproliferative Agents, Xanthone Derivatives, natural sources, Isolation, Guttiferae, Gentianaceae, plant metabolites, anticancer agents, acridone alkaloid.

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Article Details

Volume: 9
Issue Number: 1
First Page: 77
Last Page: 98
Page Count: 22
DOI: 10.2174/187152009787047699

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