The unusual canangafruticosides A-E: Five monoterpene glucosides, two monoterpenes and a monoterpene glucoside diester of the aryldihydronaphthalene lignan dicarboxylic acid from leaves of Cananga odorata var. fruticosa |
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Authors: | Jiro Nagashima Hideaki Otsuka Duangporn Lhieochaiphant |
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Institution: | a Department of Pharmacognosy, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan b Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, 239 Huaw Kaew Road, Chiang Mai 50200, Thailand |
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Abstract: | From the leaves of Cananga odorata var. fruticosa, five unusual monoterpene glucosides, named canangafruticosides A-E (1-5), along with two unusual non-glucosidic monoterpenes (6, 7) were isolated. An aryldihydronaphthalene-type lignan dicarboxylate (8) was also isolated, with two moles of canangafruticoside A (1) on its ester moiety. This lignan also showed strong blue fluorescence emission under basic conditions. The structures of these compounds were elucidated by means of spectroscopic methods, with their absolute configurations determined by application of the modified Mosher’s method to a compound chemically derived from canangafruticoside E. |
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Keywords: | Cananga odorata var fruticosa Annonaceae Shrubby cananga Unusual monoterpene Canangafruticoside Aryldihydronaphthalene dicarboxylate |
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