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@ARTICLE{Wang:836433,
      author       = {Wang, Hao and Umeokoli, Blessing O. and Eze, Peter and
                      Heering, Christian and Janiak, Christoph and Müller, Werner
                      E. G. and Orfali, Raha S. and Hartmann, Rudolf and Dai,
                      Haofu and Lin, Wenhan and Liu, Zhen and Proksch, Peter},
      title        = {{S}econdary {M}etabolites of the {L}ichen-{A}ssociated
                      {F}ungus {A}piospora montagnei},
      journal      = {Tetrahedron letters},
      volume       = {58},
      number       = {17},
      issn         = {0040-4039},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2017-05554},
      pages        = {1702–1705},
      year         = {2017},
      abstract     = {The endolichenic fungus Apiospora montagnei isolated from
                      the lichen Cladonia sp. was cultured on solid rice medium,
                      yielding the new diterpenoid libertellenone L (1), the new
                      pyridine alkaloid, 23-O-acetyl-N-hydroxyapiosporamide (2)
                      and the new xanthone derivative
                      8-hydroxy-3-hydroxymethyl-9-oxo-9H-xanthene-1-carboxylic
                      acid methyl ether (3) together with 19 known compounds
                      (4–22). The structures of the new compounds were
                      elucidated by 1D and 2D NMR spectra as well as by HRESIMS
                      data. The absolute configuration of the new
                      6,7-seco-libertellenone derivative 1 was determined by
                      single-crystal X-ray diffraction. Four additional known
                      compounds 23–26 were isolated when NaCl or NH4Cl were
                      added to solid rice medium. Compounds 7–9, 18 and 26
                      exhibited significant cytotoxicity against the L5178 murine
                      lymphoma cell line with IC50 values of 2.6, 0.2, 2.1, 2.7
                      and 1.7 μM, respectively.},
      cin          = {ICS-6},
      ddc          = {540},
      cid          = {I:(DE-Juel1)ICS-6-20110106},
      pnm          = {551 - Functional Macromolecules and Complexes (POF3-551)},
      pid          = {G:(DE-HGF)POF3-551},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000399862100009},
      doi          = {10.1016/j.tetlet.2017.03.052},
      url          = {https://juser.fz-juelich.de/record/836433},
}