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Method to potentially repair nerve damage discovered
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Method to potentially repair nerve damage discovered

Method to potentially repair nerve damage discovered
News

Method to potentially repair nerve damage discovered

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Nerve damage from neurodegenerative disease and spinal cord injury has largely been considered irreversible, but Dartmouth researchers report progress in the effort to synthesize rare natural products that promote regeneration and growth of injured nerve cells.


The findings appear in the Journal of the American Chemical Society.


See Also: Self-repairing mechanism can help to preserve brain function in neurodegenerative diseases


Neurotrophins, or proteins that promote the development of neurons, have been investigated as potential therapeutic agents, but they have a variety of drawbacks. A group of small molecule natural products, however, possesses potent neurotrophic properties without some of the shortcomings of protein-based agents. Unfortunately, a source of suitable quantities of these substances to enable thorough medicinal exploration has yet to be identified. As such, the development of synthetic processes to generate molecules in this class (and related unnatural analogs) is critically important to establish science capable of fueling the discovery of therapeutic agents within the class. That said, many member of this natural product class boast very complex carbocyclic structures that have stood as substantial challenges to modern synthetic chemistry.


Now, Dartmouth researchers have discovered that one of their recently discovered chemical reactions is capable of delivering some of the most potent and rare members of this natural product class. Their pursuits resulted in the laboratory preparation of three neurotrophic natural products in the class and demonstrated the first application of their new carbocycle-forming reaction in natural product synthesis. In addition to these accomplishments, the researchers' study also led to the discovery of a new radical cascade reaction process that proved instrumental for completing their laboratory syntheses of these complex agents.


"Advances of this nature are critically important for defining a foundation of science necessary for advancing rare natural products as therapeutic agents," says co-author and principal investigator Glenn Micalizio, the New Hampshire Professor of Chemistry at Dartmouth College. "Simply stated, without a synthetic means to access such agents, development of therapeutics based on their structure would not be possible. While other syntheses of natural products within this class have recently been reported by others, our current achievement defines a unique synthesis pathway that could be employed to prepare synthetic analogs not easily accessed by others. Also, this marks the first successful application of our chemical method for hydrindane synthesis in the context of natural product synthesis."


Note: Material may have been edited for length and content. For further information, please contact the cited source.

Dartmouth College 


Publication

Cheng A, Micalizio GC. Synthesis of Neurotrophic Seco-prezizaane Sesquiterpenes (1R,10S)-2-oxo-3,4-dehydroneomajucin, (2S)-hydroxy-3,4-dehydroneomajucin, and (–)-jiadifenin.   Journal of the American Chemical Society, Published Online January 19 2016. doi: 10.1021/jacs.5b12694


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