Tetramic Acids and Pyridone Alkaloids from the Endolichenic Fungus Tolypocladium cylindrosporum.

@article{Li2015TetramicAA,
  title={Tetramic Acids and Pyridone Alkaloids from the Endolichenic Fungus Tolypocladium cylindrosporum.},
  author={Xiao-bin Li and Lin Li and Rong-xiu Zhu and Wei Li and Wen-Qiang Chang and Lu-lu Zhang and Xiaoning Wang and Zun-tian Zhao and Hongxiang Lou},
  journal={Journal of natural products},
  year={2015},
  volume={78 9},
  pages={2155-60}
}
Three new tetramic acid derivatives, tolypocladenols A1, A2, and B (1-3), a new pyridone alkaloid, tolypyridone A (4), and a new coumarin derivative, 3,8-dihydroxy-4-(4-hydroxyphenyl)-6-methylcoumarin (5), together with four known compounds (6-9) were isolated from the endolichenic fungus Tolypocladium cylindrosporum, which inhabits the lichen Lethariella zahlbruckneri. Structures of these compounds were determined by comprehensive analysis of spectroscopic data and single-crystal X-ray… CONTINUE READING
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