Stereoselective substitution of flavan skeletons: Synthesis of dryopteric acid

  • Ohmori K
  • Ushimaru N
  • Suzuki K
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Abstract

The C(4) acetoxylated catechin and epicatechin derivatives, 4 and 5, smoothly react with various nucleophiles under Lewis acidic conditions, giving C(4)-elaborated flavan-3-ols. Facile synthesis of dryopteric acid (3) was achieved. © 2002 Elsevier Science Ltd. All rights reserved.

Author-supplied keywords

  • Catechin
  • Dryopteric acid
  • Epicatechin
  • Flavan
  • Flavone
  • Polyphenol

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Authors

  • Ken Ohmori

  • Naoko Ushimaru

  • Keisuke Suzuki

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