Total Synthesis of the Neuroprotective Agent Cudraisoflavone J

J Nat Prod. 2021 Apr 23;84(4):1359-1365. doi: 10.1021/acs.jnatprod.1c00121. Epub 2021 Apr 7.

Abstract

Cudraisoflavone J (1), isolated from Cudrania tricuspidata, is a potent neuroprotective compound with a chiral center. Herein, we report the first total synthesis of racemic cudraisoflavone J (1) using a Claisen rearrangement and a Suzuki coupling reaction as the key steps. Racemic secondary alcohol was kinetically resolved to give (+)- and (-)-cudraisoflavone J with up to 97 and 88% enantiomeric excess, respectively. The modified Mosher's method was used to elucidate the absolute configuration of naturally occurring cudraisoflavone J.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Isoflavones / chemical synthesis*
  • Molecular Structure
  • Moraceae / chemistry
  • Neuroprotective Agents / chemical synthesis*

Substances

  • Isoflavones
  • Neuroprotective Agents