Assignment of C NMR spectrum for blepharismin C based on biosynthetic studies |
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| Authors: | Yoshiyuki Uruma Kohei Takumi Yoshinosuke Usuki |
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| Institution: | a Department of Material Science, Graduate School of Science, Osaka City University, Osaka 558-8585, Japan
b Analytical Division, Graduate School of Science, Osaka City University, Osaka 558-8585, Japan |
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| Abstract: | Blepharismins, toxic pigments of the ciliate Blepharisma japonicum, are polycyclic ring-condensed compounds. Assignment of 13C NMR signals for blepharismin C, a major constituent of blepharismins, was achieved by analyses of the HMQC, HMBC, and INADEQUATE spectra of 13C-enriched samples obtained by feeding experiments using sodium 1-13C], 2-13C], and 1,2-13C2]acetates. |
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| Keywords: | Blepharismin Phenanthroperylene quinone Polyketide INADEQUATE spectrum |
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