Two new brominated C15-acetogenins from the red alga Laurencia japonensis |
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| Authors: | Takahiro Ishii Miyu Miyagi Yuto Shinjo Yu Minamida Hiroshi Matsuura Tsuyoshi Abe |
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| Affiliation: | 1. Department of Biosciences and Biotechnology, Faculty of Agriculture, University of the Ryukyus, Nishihara , Okinawa , Japan;2. ishiit@agr.u-ryukyu.ac.jp;4. Department of Materials Chemistry, National Institute of Technology, Asahikawa College, Asahikawa , Hokkaido , Japan;5. The Hokkaido University Museum, Hokkaido University, Sapporo , Hokkaido , Japan |
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| Abstract: | AbstractWe report on the chemical characteristics of the red alga Laurencia japonensis, collected off the coast of Yoshio, Katsuura, Boso Peninsula, Japan. We isolated two new brominated C15-acetogenins in this species, which we name katsuurenyne A (1) and katsuurenyne B (2), along with two already known halogenated terpenes [2,10-dibromo-3-chloro-α-chamigrene (7) and aplysiadiol (8)]. We extensively analysed spectral data (from IR, ESI-MS, 1D-NMR and 2D-NMR) to confirm the structure of these compounds. |
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| Keywords: | Laurencia japonensis Rhodomelaceae chemotaxonomy brominated C15-acetogenin |
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