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Sugimoto S, Yamano Y, Desoukey SY, Katakawa K, Wanas AS, Otsuka H, Matsunami K. Isolation of Sesquiterpene-Amino Acid Conjugates, Onopornoids A-D, and a Flavonoid Glucoside from Onopordum alexandrinum. JOURNAL OF NATURAL PRODUCTS 2019; 82:1471-1477. [PMID: 31199638 DOI: 10.1021/acs.jnatprod.8b00948] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Previous phytochemical investigations have revealed the presence of a variety of compounds such as pyrrolidine derivatives, flavonoids, and megastigmanes in Egyptian plants. Onopordum alexandrinum has been traditionally used by the natives for treatment of skin cancers and leprosy. In this paper the isolation of four new sesquiterpene-amino acid conjugates, onopornoids A-D (1-4), i.e., three elemanes and one germacrane, and a new acylated flavonoid glucoside (5) along with nine known compounds (6-14) from the whole aerial parts of the title plant is discussed. The structures were elucidated based on chemical and spectroscopic/spectrometric data.
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Affiliation(s)
- Sachiko Sugimoto
- Department of Pharmacognosy, Graduate School of Biomedical and Health Sciences , Hiroshima University , 1-2-3 Kasumi , Minami-ku, Hiroshima 734-8553 , Japan
| | - Yoshi Yamano
- Department of Pharmacognosy, Graduate School of Biomedical and Health Sciences , Hiroshima University , 1-2-3 Kasumi , Minami-ku, Hiroshima 734-8553 , Japan
| | - Samar Y Desoukey
- Department of Pharmacognosy, Faculty of Pharmacy , Minia University , Minia 61519 , Egypt
| | - Kazuaki Katakawa
- Department of Pharmaceutical Sciences, Faculty of Pharmacy , Musashino University , 11-1-20 Shinmachi Nishitokyo-shi , Tokyo 202-8585 , Japan
| | - Amira S Wanas
- Department of Pharmacognosy, Faculty of Pharmacy , Minia University , Minia 61519 , Egypt
- National Center for Natural Products Research, University of Mississippi , University , Mississippi 38677 , United States
| | - Hideaki Otsuka
- Department of Natural Products Chemistry, Faculty of Pharmacy , Yasuda Women's University , 6-13-1 Yasuhigashi , Asaminami-ku, Hiroshima 731-0153 , Japan
| | - Katsuyoshi Matsunami
- Department of Pharmacognosy, Graduate School of Biomedical and Health Sciences , Hiroshima University , 1-2-3 Kasumi , Minami-ku, Hiroshima 734-8553 , Japan
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Takeda Y, Tomonari M, Arimoto S, Masuda T, Otsuka H, Matsunami K, Honda G, Ito M, Takaishi Y, Kiuchi F, Khodzhimatov OK, Ashurmetov OA. A new phenolic glucoside from an Uzbek medicinal plant, Origanum tyttanthum. J Nat Med 2007; 62:71-4. [PMID: 18404346 DOI: 10.1007/s11418-007-0187-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2007] [Accepted: 07/02/2007] [Indexed: 11/28/2022]
Abstract
A new phenolic glucoside was isolated from the aerial parts of Origanum tyttanthum, an Uzbek medicinal plant, together with 12 known compounds. The structure of the new compound was elucidated as 4-O-beta-D-glucopyranosylbenzyl-3'-hydroxyl-4'-methoxybenzoate (1) based on the spectral and chemical evidence.
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Affiliation(s)
- Yoshio Takeda
- Faculty of Integrated Arts and Sciences, The University of Tokushima, 1-1 Minamijosanjima-cho, Tokushima, 770-8502, Japan.
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