10-Hydroxy Lycopodium alkaloids

The 10-hydroxy Lycopodium alkaloids, 10-hydroxylycopodine, deacetylpaniculine and paniculine, are a series of natural products isolated from a Chilean club moss Lycopodium confertum. Deacetylpaniculine and paniculine were also isolated from Lycopodium paniculatum.[1]

The Lycopodium alkaloids are of interest due to their biological activity and unique skeletal characteristics,[2] however, many compounds in this class have not been well studied.

Synthesis

The first enantioselective synthesis of 10-hydroxylycopodine, deacetylpaniculine and paniculine was published by Mrinmoy Saha and Professor Rich Carter in 2013 from Oregon State University. A common intermediate strategy was used to accomplish the total syntheses.[3] The key steps toward the syntheses are an organocatalyzed (Proline sulfonamide catalyst nicknamed as Hua Cat.) Michael reaction and a Zn (OTf)2 mediated conformationally accelerated Mannich reaction.

See also

References

  1. ↑ Muñoz, Orlando M. (January 1990). "High Resolution NMR Studies of Paniculine and Related Lycopodium Compounds". Journal of Natural Products 53 (1): 200–203. doi:10.1021/np50067a032.
  2. ↑ "Lycopodine and the Lycopodium Alkaloids" (PDF).
  3. ↑ Saha, Mrinmoy (February 2013). "Toward a Unified Approach for the Lycopodines: Synthesis of 10-Hydroxylycopodine, Deacetylpaniculine, and Paniculine". Organic Letters 15 (4): 736–739. doi:10.1021/ol303272w. PMC 3616490. PMID 23384410.
This article is issued from Wikipedia - version of the Tuesday, May 19, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.