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Keywords = melastoflorins

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30 pages, 4465 KiB  
Review
Phenolics and Polyphenolics from Melastomataceae Species
by Diana Marcela Ocampo Serna and José Hipólito Isaza Martínez
Molecules 2015, 20(10), 17818-17847; https://doi.org/10.3390/molecules201017818 - 25 Sep 2015
Cited by 33 | Viewed by 12461
Abstract
The Melastomataceae family, the seventh largest flowering plants, has been studied in several fronts of natural product chemistry, including terpenoids, simple phenolics, flavonoids, quinones, lignans and their glycosides, as well as a vast range of tannins or polyphenols. This review concerns the phenolic [...] Read more.
The Melastomataceae family, the seventh largest flowering plants, has been studied in several fronts of natural product chemistry, including terpenoids, simple phenolics, flavonoids, quinones, lignans and their glycosides, as well as a vast range of tannins or polyphenols. This review concerns the phenolic and polyphenolic metabolites described in the literature for several genera of this family, the mode of isolation and purification, and the structure elucidation of these new natural products that has been achieved by extensive spectral analyses, including ESI-MS, 1H-, 13C-NMR spectra and two-dimensional experiments, COSY, TOCSY, J-resolved, NOESY, HMQC, DEPT, and HMBC, as well as chemical and enzymatic degradations and the chemotaxonomic meaning. Finally, a general biogenetic pathway map for ellagitannins is proposed on the bases of the most plausible free radical C-O oxidative coupling. Full article
(This article belongs to the Special Issue Recent Advances in Plant Phenolics)
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