A New Biisoflavonoid from the Roots of Erythrina Variegata

@article{Tanaka2010ANB,
  title={A New Biisoflavonoid from the Roots of Erythrina Variegata},
  author={Hitoshi Tanaka and M. Sudo and Miyuki Hirata and Hideo Etoh and Masaru Sato and Ryozo Yamaguchi and Eiji Sakai and Ih-Sheng Chen and Toshio Fukai},
  journal={Natural Product Communications},
  year={2010},
  volume={5}
}
A new biisoflavonoid, biseryvarin A (1a), together with two known compounds were isolated from the roots of Erythrina variegata. The structure of biseryvarin A was established on the basis of spectroscopic evidence. Biseryvarin A is the first dimeric isoflavonoid possessing isoprenoid groups from the genus Erythrina. Biseryvarin A showed low activity against methicillin-resistant Staphylococcus aureus (MRSA). 
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