Calyxin H, epicalyxin H and blepharocalyxins A and B, novel diarylheptanoids from the seeds of Alpinia blepharocalyx

Academic Article


  • Four unprecedented diarylheptanoids - calyxin H (1) and epicalyxin H (2), possessing a diarylheptanoid unit and a chalcone moiety, and blepharocalyxins A (3) and B (4), possessing two diarylheptanoid units and a chalcone moiety - were isolated from the seeds of Alpinia blepharocalyx. The structures of 1-4, including absolute stereochemistry, were elucidated by spectroscopic means and after a consideration of their biogenesis.
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    Author List

  • Prasain JK; Li JX; Tezuka Y; Tanaka K; Basnet P; Dong H; Namba T; Kadota S
  • Start Page

  • 212
  • End Page

  • 216
  • Volume

  • 61
  • Issue

  • 2