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Highly Oxygenated Flavonoids from the Leaves of Nicotiana plumbaginifolia (Solanaceae)

Shajib, MS and Datta, BK and Sohrab, MH and Rashid, MA and Nahar, L and Sarker, SD (2017) Highly Oxygenated Flavonoids from the Leaves of Nicotiana plumbaginifolia (Solanaceae). RECORDS OF NATURAL PRODUCTS, 11 (6). ISSN 1307-6167

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Open Access URL: http://dx.doi.org/10.25135/rnp.73.17.04.080 (Published version)

Abstract

Nicotiana plumbaginifolia Viv. is an annual herb of the family Solanaceae, which grows abundantly in the weedy lands of Bangladesh. This plant possesses analgesic, antibacterial, anti-anxiety and hepatoprotective properties, and produces various phenolic compounds including flavonoids. The present study afforded determination of total phenolic and flavonoid contents, and for the first time, the isolation and characterization of highly oxygenated flavonoids, e.g., 3,3',5,6,7,8-hexamethoxy-4',5'-methylenedioxyflavone (1), 3,3',4',5',5,6,7,8-octamethoxyflavone (2, exoticin), 6,7,4',5'-dimethylenedioxy-3,5,3'-trimethoxyflavone (3) and (3,3',4',5,5',8-hexamethoxy-6,7-methylenedioxyflavone (4) from the leaves of N. plumbaginifolia. All these flavonoids are rather rare natural products, and only found in a few genera, e.g., Polygonum and Murraya. The structures of the isolated flavonoids were elucidated by comprehensive spectroscopic analyses, e.g., UV, 1H, 13C NMR, DEPT, HSQC, HMBC and MS.

Item Type: Article
Uncontrolled Keywords: Science & Technology; Life Sciences & Biomedicine; Physical Sciences; Plant Sciences; Chemistry, Applied; Chemistry, Medicinal; Chemistry; Pharmacology & Pharmacy; Highly oxygenated flavonoids; Nicotiana plumbaginifolia; Solanaceae; phenolics; NMR; ANTIBACTERIAL; CONSTITUENTS; PANICULATA; L.
Subjects: R Medicine > RS Pharmacy and materia medica
Divisions: Pharmacy & Biomolecular Sciences
Publisher: ACG PUBLICATIONS
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Date Deposited: 09 Oct 2017 13:18
Last Modified: 09 Oct 2017 13:18
DOI or Identification number: 10.25135/rnp.73.17.04.080
URI: http://researchonline.ljmu.ac.uk/id/eprint/7305

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