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Sabrin MS, Selenge E, Takeda Y, Batkhuu J, Ogawa H, Jamsransuren D, Suganuma K, Murata T. Isolation and evaluation of virucidal activities of flavanone glycosides and rosmarinic acid derivatives from Dracocephalum spp. against feline calicivirus. Phytochemistry 2021; 191:112896. [PMID: 34371301 DOI: 10.1016/j.phytochem.2021.112896] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 07/31/2021] [Indexed: 06/13/2023]
Abstract
Feline calicivirus is one of the surrogate viruses of human norovirus. This study aimed to identify virucidal compounds, chemical constituents of plants from the genus Dracocephalum, which are rich in flavonoids and phenylpropanoid oligomers. Four undescribed compounds, including a flavanone glucoside, two stilbenoid glycosides, and a phenylpropanoid amide glycoside, as well as 17 known compounds, were isolated from the Mongolian plants Dracocephalum fruticulosum Stephan ex Willd., and D. nutans L. belonging to the family Lamiaceae. The structures of the compounds were determined based on NMR, MS, and electronic CD spectroscopic data. In addition to these 21 compounds, 15 previously reported compounds from D. foetidum Bunge in C.F. von Ledebour were included, and a total of 36 compounds were evaluated for their virucidal activities against feline calicivirus. Some of the flavanone glycosides and phenylpropanoid oligomers showed virucidal activities, and their structural features are discussed. The findings suggest that isosakuranetin glycosides and phenylpropanoid oligomers may have the potential for norovirus inactivation.
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Affiliation(s)
- Mirza Synthia Sabrin
- Graduate School of Animal and Veterinary Sciences and Agriculture, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido, 080-8555, Japan; Department of Microbiology and Parasitology, Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka, 1207, Bangladesh
| | | | - Yohei Takeda
- Research Center for Global Agromedicine, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido, 080-8555, Japan
| | - Javzan Batkhuu
- School of Engineering and Applied Sciences, National University of Mongolia, POB-617/46A, Ulaanbaatar 14201, Mongolia
| | - Haruko Ogawa
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido, 080-8555, Japan
| | - Dulamjav Jamsransuren
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido, 080-8555, Japan
| | - Keisuke Suganuma
- Research Center for Global Agromedicine, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido, 080-8555, Japan; National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido, 080-8555, Japan
| | - Toshihiro Murata
- Division of Pharmacognosy, Tohoku Medical and Pharmaceutical University, 4-1 Komatsushima 4-chome Aoba-ku, Sendai, 981-8558, Japan.
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Murata T, Ishikawa Y, Saruul E, Selenge E, Sasaki K, Umehara K, Yoshizaki F, Batkhuu J. Abietane-type diterpenoids from the roots of Caryopteris mongolica and their cholinesterase inhibitory activities. Phytochemistry 2016; 130:152-158. [PMID: 27298275 DOI: 10.1016/j.phytochem.2016.05.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 05/20/2016] [Accepted: 05/26/2016] [Indexed: 06/06/2023]
Abstract
Eleven abietane-type diterpenoids and two known abietanes were isolated from the roots of Caryopteris mongolica, and their structures were characterized. The absolute configurations at C-5 and C-10 were determined from the NMR data, including from the nuclear Overhauser effect and CD spectra, and the absolute configuration of C-16 in the hydroxypropyl group was determined via a modified Mosher's method. Furthermore, the previously unknown absolute configuration of the C-15 of cyrtophyllone B was determined to be in an R-configuration using X-ray crystallography. To estimate the preventive effects of the isolates for neurodegenerative disease development, their inhibitory activities against acetylcholinesterase (AChE) from human erythrocytes and butyrylcholinesterase (BChE) from horse serum were evaluated.
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Affiliation(s)
- Toshihiro Murata
- Department of Pharmacognosy, Tohoku Medical and Pharmaceutical University, 4-1 Komatsushima 4-chome, Aoba-ku, Sendai, 981-8558, Japan.
| | - Yoshinobu Ishikawa
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1, Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Erdenebileg Saruul
- School of Engineering and Applied Sciences, National University of Mongolia, POB-617, Ulaanbaatar-46A, 14201, Mongolia
| | - Erdenechimeg Selenge
- Department of Pharmacognosy, Tohoku Medical and Pharmaceutical University, 4-1 Komatsushima 4-chome, Aoba-ku, Sendai, 981-8558, Japan; Mongolian University of Pharmaceutical Sciences, Sonsgolon's Road, Street 4/A, 20th Khoroo, Songinokhairkhan District, Ulaanbaatar, Mongolia
| | - Kenroh Sasaki
- Department of Pharmacognosy, Tohoku Medical and Pharmaceutical University, 4-1 Komatsushima 4-chome, Aoba-ku, Sendai, 981-8558, Japan
| | - Kaoru Umehara
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1, Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Fumihiko Yoshizaki
- Department of Pharmacognosy, Tohoku Medical and Pharmaceutical University, 4-1 Komatsushima 4-chome, Aoba-ku, Sendai, 981-8558, Japan
| | - Javzan Batkhuu
- School of Engineering and Applied Sciences, National University of Mongolia, POB-617, Ulaanbaatar-46A, 14201, Mongolia
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Saruul E, Murata T, Selenge E, Sasaki K, Yoshizaki F, Batkhuu J. An antibacterial ortho-quinone diterpenoid and its derivatives from Caryopteris mongolica. Bioorg Med Chem Lett 2015; 25:2555-8. [PMID: 25958242 DOI: 10.1016/j.bmcl.2015.04.048] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 04/10/2015] [Accepted: 04/15/2015] [Indexed: 11/24/2022]
Abstract
To identify antibacterial components in traditional Mongolian medicinal plant Caryopteris mongolica, an ortho-quinone abietane caryopteron A (1) and three its derivatives caryopteron B-D (2-4) were isolated from the roots of the plant together with three known abietanes demethylcryptojaponol (5), 6α-hydroxydemethyl cryptojaponol (6), and 14-deoxycoleon U (7). The chemical structures of these abietane derivatives were elucidated on the basis of spectroscopic data. Compounds 1-4 had C-13 methylcyclopropane substructures, and 2-4 had a hexanedioic anhydride ring C instead of ortho-quinone in 1. The stereochemistry of these compound was assumed from NOE spectra and ECD Cotton effects. Compounds 1 and 5-7 showed antibacterial activities against the Gram-positive bacteria Staphylococcus aureus, Staphylococcus epidermidis, Enterococcus faecalis, and Micrococcus luteus, being 1 the more potent.
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Affiliation(s)
- Erdenebileg Saruul
- School of Engineering and Applied Sciences, National University of Mongolia, POB-617, Ulaanbaatar-46A, Mongolia
| | - Toshihiro Murata
- Department of Pharmacognosy, Tohoku Pharmaceutical University, 4-1 Komatsushima 4-chome, Aoba-ku, Sendai 981-8558, Japan.
| | - Erdenechimeg Selenge
- Department of Pharmacognosy, Tohoku Pharmaceutical University, 4-1 Komatsushima 4-chome, Aoba-ku, Sendai 981-8558, Japan; Monos University, Sonsgolon's Road-Street 4/A, 20th Khoroo, Songinokhairkhan District, Ulaanbaatar, Mongolia
| | - Kenroh Sasaki
- Department of Pharmacognosy, Tohoku Pharmaceutical University, 4-1 Komatsushima 4-chome, Aoba-ku, Sendai 981-8558, Japan
| | - Fumihiko Yoshizaki
- Department of Pharmacognosy, Tohoku Pharmaceutical University, 4-1 Komatsushima 4-chome, Aoba-ku, Sendai 981-8558, Japan
| | - Javzan Batkhuu
- School of Engineering and Applied Sciences, National University of Mongolia, POB-617, Ulaanbaatar-46A, Mongolia
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Murata T, Selenge E, Oikawa S, Ageishi K, Batkhuu J, Sasaki K, Yoshizaki F. Cholinesterase-inhibitory diterpenoids and chemical constituents from aerial parts of Caryopteris mongolica. J Nat Med 2015; 69:471-8. [PMID: 25900047 DOI: 10.1007/s11418-015-0908-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Accepted: 04/01/2015] [Indexed: 11/25/2022]
Abstract
A diterpenoid diglucoside (12,19-di-O-β-D-glucopyranosyl-11-hydroxyabieta-8,11,13-triene-19-one), isoscutellarein 7-O-[β-D-xylopyranosyl-(1→2)]-β-D-glucopyranoside, isoscutellarein 7-O-[α-L-rhamnopyranosyl-(1→2)]-β-D-glucopyranoside, hypolaetin 7-O-[6″-O-(p-E-coumaroyl)]-β-D-glucopyranoside, hypolaetin 7-O-[6″-O-(E-caffeoyl)]-β-D-glucopyranoside, and 15 known compounds were isolated from aerial parts of the Mongolian medicinal plant Caryopteris mongolica. The cholinesterase-inhibitory activities of the constituents were estimated. The abietane diterpenoids (12-O-demethylcryptojaponol and 6α-hydroxydemethylcryptojaponol) showed potent inhibitory activity against acetylcholinesterase from human erythrocytes and electric eel, and against butyrylcholinesterase from horse serum.
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Affiliation(s)
- Toshihiro Murata
- Department of Pharmacognosy, Tohoku Pharmaceutical University, 4-1 Komatsushima 4-chome, Aoba-ku, Sendai, 981-8558, Japan,
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Bayarmaa B, Selenge E, Min Y. Study on arsenic removal process from water. Mong J Chem 2014. [DOI: 10.5564/mjc.v12i0.172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In this study a novel adsorbent, iron oxide, is used for As (V) or As (III) removal. Some ferric oxides have been reported to be effective for arsenic removal. Ferric oxides powder is a good adsorbent material since it’s has magnetic properties and a good adsorption capacity. The main purpose of this study has been focused on to study the relationship between adsorption capacity (ability, performance) and the surface characteristics of the ferric oxide. Prepared sample’s capacity was evaluated. The value was 26.1-67.4 mg/g for As (V) and 20.5-47.8 mg/g for As (III). pH dependence was evaluated and when pH increasing, adsorption capacity was decreased. The kinetic was evaluated and about 12 hours reached equilibrium and a capacity of 49 mg/g for As (V) and 42 mg/g for As(III) was gained. The kinetic constants for arsenic adsorption on the ferrihydrite adsorbent’s were fitted.DOI: http://dx.doi.org/10.5564/mjc.v12i0.172 Mongolian Journal of Chemistry Vol.12 2011: 53-55
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Selenge E, Murata T, Tanaka S, Sasaki K, Batkhuu J, Yoshizaki F. Monoterpene glycosides, phenylpropanoids, and acacetin glycosides from Dracocephalum foetidum. Phytochemistry 2014; 101:91-100. [PMID: 24582463 DOI: 10.1016/j.phytochem.2014.02.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Revised: 11/15/2013] [Accepted: 02/03/2014] [Indexed: 06/03/2023]
Abstract
Chemical investigation of the acetone extract from the aerial parts of the Mongolian medicinal plant Dracocephalum foetidum resulted in the isolation of three limonene glycosides, a caffeic acid trimer, four rosmarinic acid glucosides, and five acacetin acyl glycosides, together with 13 known natural products. The chemical structures of all of the compounds were determined by spectroscopic analyses. Among these compounds three showed hyaluronidase inhibitory activity. In addition, one other compound showed stronger 1,1-diphenyl-2-picrylhydrazyl radical scavenging activity than the positive control Trolox, whereas three other compounds demonstrated a similar activity to that of Trolox.
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Affiliation(s)
- Erdenechimeg Selenge
- Department of Pharmacognosy, Tohoku Pharmaceutical University, 4-1 Komatsushima 4-chome Aoba-ku, Sendai 981-8558, Japan
| | - Toshihiro Murata
- Department of Pharmacognosy, Tohoku Pharmaceutical University, 4-1 Komatsushima 4-chome Aoba-ku, Sendai 981-8558, Japan.
| | - Shiho Tanaka
- Department of Pharmacognosy, Tohoku Pharmaceutical University, 4-1 Komatsushima 4-chome Aoba-ku, Sendai 981-8558, Japan
| | - Kenroh Sasaki
- Department of Pharmacognosy, Tohoku Pharmaceutical University, 4-1 Komatsushima 4-chome Aoba-ku, Sendai 981-8558, Japan
| | - Javzan Batkhuu
- School of Biology and Biotechnology, National University of Mongolia, PO Box 617, Ulaanbaatar 46A, Mongolia
| | - Fumihiko Yoshizaki
- Department of Pharmacognosy, Tohoku Pharmaceutical University, 4-1 Komatsushima 4-chome Aoba-ku, Sendai 981-8558, Japan
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Selenge E, Murata T, Kobayashi K, Batkhuu J, Yoshizaki F. Flavone tetraglycosides and benzyl alcohol glycosides from the Mongolian medicinal plant Dracocephalum ruyschiana. J Nat Prod 2013; 76:186-193. [PMID: 23356964 DOI: 10.1021/np300609u] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
From an extract of the aerial parts of Dracocephalum ruyschiana, five new flavone tetraglycosides, five new benzyl alcohol glycosides, and 19 known compounds were isolated. The tetraglycosides contain a 7-O-β-d-glucopyranosyl-(1→2)-β-d-glucopyranosyl-(1→2)-[α-l-rhamnopyranosyl-(1→6)]-β-d-glucopyranosyl moiety. The benzyl alcohol glycosides had acyl groups on their glycosyl or aglycone moieties. The compounds were tested for antioxidant activity using DPPH. Although the new compounds were not active, phenylpropanoylquinic acid derivatives were revealed as radical scavengers in D. ruyschiana.
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Affiliation(s)
- Erdenechimeg Selenge
- Department of Pharmacognosy, Tohoku Pharmaceutical University , 4-4-1 Komatsushima, Aoba-ku, Sendai, Japan
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Handa M, Murata T, Kobayashi K, Selenge E, Miyase T, Batkhuu J, Yoshizaki F. Lipase inhibitory and LDL anti-oxidative triterpenes from Abies sibirica. Phytochemistry 2013; 86:168-175. [PMID: 23261031 DOI: 10.1016/j.phytochem.2012.11.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Revised: 08/31/2012] [Accepted: 10/15/2012] [Indexed: 06/01/2023]
Abstract
A methanol extract of Abies sibirica Ladeb, a Mongolian medicinal plant, had an inhibitory effect on both lipase activity in mouse plasma and LDL anti-oxidative activity, which are preventative factors for arteriosclerosis. The extract was fractionated by silica gel column chromatography and its active constituents were sought. From lipid soluble fractions, 20 terpenoids including seven hitherto unknown triterpenes were isolated. The latter triterpenes had either a γ-lactone ring with a lactol or a derivative thereof. Their chemical structures were determined by spectroscopic methods. The lipase inhibitory activity and LDL anti-oxidative activity of these compounds were evaluated. Some constituents (either lipase inhibitory or LDL anti-oxidative activities) had moderate inhibitory activities.
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Affiliation(s)
- Mizuho Handa
- Department of Pharmacognosy, Tohoku Pharmaceutical University, Aoba-ku, Sendai, Japan
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