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Evaluation of the pharmacophoric motif of the caged Garcinia xanthones.


ABSTRACT: The combination of unique structure and potent bioactivity exhibited by several family members of the caged Garcinia xanthones, led us to evaluate their pharmacophore. We have developed a Pd(0)-catalyzed method for the reverse prenylation of catechols that, together with a Claisen/Diels-Alder reaction cascade, provides rapid and efficient access to various caged analogues. Evaluation of the growth inhibitory activity of these compounds leads to the conclusion that the intact ABC ring system containing the C-ring caged structure is essential to the bioactivity. Studies with cluvenone (7) also showed that these compounds induce apoptosis and exhibit significant cytotoxicity in multidrug-resistant leukemia cells. As such, the caged Garcinia xanthone motif represents a new and potent pharmacophore.

SUBMITTER: Chantarasriwong O 

PROVIDER: S-EPMC2927871 | biostudies-literature | 2009 Dec

REPOSITORIES: biostudies-literature

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Evaluation of the pharmacophoric motif of the caged Garcinia xanthones.

Chantarasriwong Oraphin O   Cho Woo Cheal WC   Batova Ayse A   Chavasiri Warinthorn W   Moore Curtis C   Rheingold Arnold L AL   Theodorakis Emmanuel A EA  

Organic & biomolecular chemistry 20090924 23


The combination of unique structure and potent bioactivity exhibited by several family members of the caged Garcinia xanthones, led us to evaluate their pharmacophore. We have developed a Pd(0)-catalyzed method for the reverse prenylation of catechols that, together with a Claisen/Diels-Alder reaction cascade, provides rapid and efficient access to various caged analogues. Evaluation of the growth inhibitory activity of these compounds leads to the conclusion that the intact ABC ring system cont  ...[more]

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