Synthetic studies on ginkgolides: Access to potent neuroprotecting natural products

ORGN 541

Sergei Bolshakov, sb1047@columbia.edu, Sergei V Dzyuba, svd2102@columbia.edu, Jean Li, and Koji Nakanishi, kn5@columbia.edu. Department of Chemistry, Columbia University, 3000 Broadway, New York, NY 10027
Gingkolides are considered the main neuromodulatory components of Ginkgo biloba extract. The minor and not easily accessible components of the ginkgolide fraction of the extract, such as ginkgolide J and ginkgolide M, have been shown to be potent compounds in modulating the pathological pathways leading to neurodegenerative disorders. We report facile and convenient synthetic approaches leading to sufficient quantities of ginkgolides J and M. The developed chemistry provides means to probe functional and structural diversity-oriented approaches using the ginkgolide scaffold.