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. 2006 May 25;8(11):2353-6.
doi: 10.1021/ol0606435.

A concise stereoselective synthesis of Preussin, 3-epi-Preussin, and analogues

Affiliations

A concise stereoselective synthesis of Preussin, 3-epi-Preussin, and analogues

Myra Beaudoin Bertrand et al. Org Lett. .

Abstract

[reaction: see text] A new stereoselective synthesis of the antifungal and antitumor agents Preussin and 3-epi-Preussin via a Pd-catalyzed carboamination of a protected amino alcohol is described. The key transformation leads to simultaneous formation of the N-C2 bond and the C1'-aryl bond, and allows installation of the aryl group one step from the end of the sequence. This strategy permits the facile construction of a variety of preussin analogues bearing different aromatic groups.

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Figures

Scheme 1
Scheme 1
Key Disconnection and Stereocontrol
Scheme 2
Scheme 2
Synthesis of (±)-Preussin
Scheme 3
Scheme 3
Synthesis of (±)-3-epi-Preussin.
Scheme 4
Scheme 4
Synthesis of (+)-Preussin

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