Biomimetic Syntheses of the Neurotrophic Natural Products Caryolanemagnolol and Clovanemagnolol
作者:Xu Cheng、Nicole L. Harzdorf、Travis Shaw、Dionicio Siegel
DOI:10.1021/ol100214x
日期:2010.3.19
Separate short and modular syntheses of the isomeric natural products caryolanemagnolol and clovanemagnolol have been achieved starting from commercially available (-)-caryophyllene. The postulated biosynthetic pathways guided the syntheses of the neuro regenerative small molecules allowing their assembly in as few as two steps.
Hippocampal and cortical neuronal growth mediated by the small molecule natural product clovanemagnolol
作者:Zin Khaing、Danby Kang、Andrew M. Camelio、Christine E. Schmidt、Dionicio Siegel
DOI:10.1016/j.bmcl.2011.06.054
日期:2011.8
The use of small molecule surrogates of growth factors that directly or indirectly promote growth represents an attractive approach to regenerative medicine. With synthetic access to clovanemagnolol, a small molecule initially isolated from the bark of the Bigleaf Magnolia tree, we have examined the small molecule's ability to promote growth of embryonic hippocampal and cortical neurons in serum-free medium. Comparisons with magnolol, a known promoter of growth, reveals that clovanmagnolol is a potent neurotrophic agent, promoting neuronal growth at concentrations of 10 nM. In addition, both clovanemagnolol and magnolol promote growth through a biphasic dose response. (C) 2011 Elsevier Ltd. All rights reserved.