Structural Study on a Naturally Occurring Terphenyl Quinone

  title={Structural Study on a Naturally Occurring Terphenyl Quinone},
  author={Atsuo Nakazaki and Wen-Yu Huang and Kazushi Koga and Boon-ek Yingyongnarongkul and Jutatip Boonsombat and Yusuke Sawayama and Takashi Tsujimoto and Toshio Nishikawa},
  journal={Bioscience, Biotechnology, and Biochemistry},
  pages={1529 - 1532}
Two terphenyl quinones were synthesized for a structural study on a naturally occurring biologically active terphenyl quinone. 3-Methoxy-5,6-diphenylcyclohexa-3,5-dien-1,2-dione, a possible structure proposed by our analysis of the NMR spectra, was synthesized by Suzuki-Miyaura coupling and subsequent oxidation of the resulting substituted phenol, although not being identical to the natural product. Recently isolated 3-methoxy-2,5-diphenylcyclohexa-2,5-dien-1,4-dione was synthesized from a… 
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