Hyrtimomines D and E, bisindole alkaloids from a marine sponge Hyrtios sp.

@article{Tanaka2013HyrtimominesDA,
  title={Hyrtimomines D and E, bisindole alkaloids from a marine sponge Hyrtios sp.},
  author={N. Tanaka and Rei Momose and Yohei Takahashi and T. Kubota and Azusa Takahashi-Nakaguchi and T. Gonoi and J. Fromont and J. Kobayashi},
  journal={Tetrahedron Letters},
  year={2013},
  volume={54},
  pages={4038-4040}
}
Abstract Two new alkaloids, hyrtimomines D ( 1 ) and E ( 2 ), were isolated from an Okinawan marine sponge Hyrtios sp. The structures of 1 and 2 were elucidated on the basis of spectroscopic analysis. Hyrtimomines D ( 1 ) and E ( 2 ) are structurally unique bisindole alkaloids possessing the canthin-6-one skeleton with a hydroxyindole and an imidazolium units. Hyrtimomines D ( 1 ) and E ( 2 ) exhibited antimicrobial activity. 
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