Methylvirensat und 5-Chlor Methylvirensat aus Arten der Flechtengattung Pseudocypbellaria/ Methyl-virensate and 5-Chloro-methyl-virensate from Species of the Lichen Genus Pseudocyphellaria

@article{Renner1978MethylvirensatU5,
  title={Methylvirensat und 5-Chlor Methylvirensat aus Arten der Flechtengattung Pseudocypbellaria/ Methyl-virensate and 5-Chloro-methyl-virensate from Species of the Lichen Genus Pseudocyphellaria},
  author={Bernd Renner and Aino Henssen and Ernst Gerstner},
  journal={Zeitschrift f{\"u}r Naturforschung C},
  year={1978},
  volume={33},
  pages={826 - 830}
}
The two new lidien depsidones methyl-virensate and 5-Cl methyl-virensate were found in the lichens Pseudocyphellaria physciospora and Pseudocyphellaria granulata. Structure elucidation of the new compounds was carried out using UV/VIS-, 1H-NMR- and El-mass-spectroscopy. In TLC studies 5-Cl methyl-virensate may be confused with pannarin. The close relationship of the two new lidien substances to atranorin and Cl-atranorin is discussed. 
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