Iridoid glucosides in Griselinia, Aralidium and Toricellia |
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| Authors: | Søren Rosendal Jensen Bent Juhl Nielsen |
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| Affiliation: | Department of Organic Chemistry, The Technical University of Denmark, 2800 Lyngby, Denmark |
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| Abstract: | From three of five investigated species of Griselinia a new iridoid glucoside, griselinoside, was isolated. It was found to be present also in foliage of Aralidium pinnatifidum and Toricellia angulata, accompanied in the former by aralidioside another novel iridoid glucoside. The structures and absolute configurations of the two iridoids were elucidated by NMR spectroscopy and chemical conversions. From G. littoralis and T. angulata the glucosides magnolioside and syringoside respectively were isolated. 13C NMR spectra are given for thirteen iridoid derivatives. |
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| Keywords: | Cornales iridoid glucosides griselinoside aralidioside coumarin glucoside magnolioside |
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