Bioactive carbazole and quinoline alkaloids from Clausena dunniana.

  title={Bioactive carbazole and quinoline alkaloids from Clausena dunniana.},
  author={Nankai Cao and Yuemei Chen and Xiaoli Ma and Kewu Zeng and Mingbo Zhao and Pengfei Tu and Jun Li and Yong Jiang},
Nine undescribed carbazole and quinoline alkaloids, named dunnines A-E, and 14 known analogues were isolated from the leaves and stems of Clausena dunniana. Their structures were elucidated on the basis of comprehensive analysis of NMR and HRMS spectroscopic data, and the absolute configurations were assigned via comparison of their specific rotations and calculated and experimental ECD data. (±)-Dunnines A-C and (±)-clausenawalline A are four pairs of biscarbazole atropisomers and (±)-dunnine… Expand
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