Synthesis of Lactonized Valoneoyl Group-Containing Ellagitannins, Oenothein C and Cornusiin B

@article{Abe2020SynthesisOL,
  title={Synthesis of Lactonized Valoneoyl Group-Containing Ellagitannins, Oenothein C and Cornusiin B},
  author={H. Abe and Haruka Imai and Daichi Ogura and Y. Horino},
  journal={Heterocycles},
  year={2020},
  volume={101},
  pages={524}
}
The total synthesis of two ellagitannins, oenothein C and cornusiin B, which involve a lactonized valoneoyl group (LVG) in the molecules, was accomplished starting from glucose and gallic acid. Classical Ullmann coupling reactions were effective for preparation of the key intermediate, the lactonized valoneic acid derivative, which was subjected to a condensation reaction with glucose, and finally converted to the ellagitannins. INTRODUCTION Ellagitannins are widely distributed in the plant… Expand

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