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. 2009 Aug 3;14(8):2857-61.
doi: 10.3390/molecules14082857.

Quinones as key intermediates in natural products Synthesis. Syntheses of bioactive xanthones from Hypericum perforatum

George A Kraus  1 , John Mengwasser
Affiliations

Quinones as key intermediates in natural products Synthesis. Syntheses of bioactive xanthones from Hypericum perforatum

George A Kraus et al. Molecules. .

Abstract

Two bioactive xanthones from Hypericum perforatum have been synthesized by direct routes. Benzo[c]xanthone 5 can be prepared from intermediate 4.

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Figures

Figure 1
Figure 1
Xanthones from Hypericum perforatum.
Scheme 1
Scheme 1
Photoacylation reaction.
Scheme 2
Scheme 2
Cyclization to xanthone 5.
Scheme 3
Scheme 3
Synthesisof 1 and 2.
See this image and copyright information in PMC

References

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