1
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Tori M. Cumulative Data of 1H and 13C NMR Signals and Specific Rotations of Eremophilane Sesquiterpenoids. 2. Bicyclic Eremophilanes (2). Nat Prod Commun 2022. [DOI: 10.1177/1934578x221141172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
1H and 13C NMR signals and specific rotations of eremophilane sesquiterpenoids are cumulated as a series of review articles. In the second chapter of this review, 124 bicyclic eremophilanes without furan or lactone rings (except for epoxides) and with 3-OR functionality (some have OH) are listed in 25 tables. Those bearing long chain acyloxy groups without 3-oxygen functions and some bi- or tri-cyclic compounds are also included in this chapter. These data may help chemists working in the area of natural products chemistry as well as synthetic scientists.
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Affiliation(s)
- Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, Japan
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2
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Tori M. Cumulative Data of 1H and 13C NMR Signals and Specific Rotations of Eremophilane Sesquiterpenoids. 1. Bicyclic Eremophilanes (1). Nat Prod Commun 2022. [DOI: 10.1177/1934578x221109527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
1H and 13C Nuclear Magnetic Resonance (NMR) signals and specific rotations of eremophilane sesquiterpenoids are cumulated as a series of review articles. In the first chapter of this review, 332 bicyclic eremophilanes, namely with no furan or lactone rings (except for epoxides), without 3-OR functionality (except for hydroxy, acetoxy, and carbonyl) are listed in tables. These data may help chemists working in the area of natural products chemistry as well as synthetic scientists.
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Affiliation(s)
- Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, Japan
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3
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Hanai R, Okamoto Y, Hashida T, Shiojiri K, Ohsaki A, Saito Y, Tori M, Gong X, Kuroda C. Chemical and Genetic Diversity of Ligularia kanaitzensis in the Hengduan Mountains Area. Chemical Relationship with L. subspicata. Chem Biodivers 2021; 18:e2100444. [PMID: 34605603 DOI: 10.1002/cbdv.202100444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 10/04/2021] [Indexed: 11/06/2022]
Abstract
Root chemicals and the sequences of the internal transcribed spacers (ITSs) were analyzed for 9 Ligularia kanaitzensis and 3 L. subspicata samples collected in northwestern Yunnan and southwestern Sichuan, China. Subspicatins A and C were isolated from two L. kanaitzensis samples. Introgression of genes responsible for these compounds from L. subspicata was suggested by their strong connection with L. subspicata/L. lamarum and the geographical proximity of the samples to L. subspicata. DNA analysis of a set of 27 L. kanaitzensis samples including those analyzed previously showed that they belong to two clades, designated A and B. Together with the presence/absence of furanoeremophilane, the 27 samples were sorted into three groups: clade A/furan, clade B/furan, and clade B/non-furan. The ancestral plant presumably belonged to clade B/non-furan, because furanoeremophilanes are biosynthesized from eremophilan-8-ones. 1β-Angeloyloxyfukinone, a likely intermediate between fukinone and subspicatin C, was isolated for the first time. This finding allowed us to propose plausible biosynthetic pathways of subspicatins A and C.
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Affiliation(s)
- Ryo Hanai
- Department of Life Science and Research Center of Life Science, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo, 171-8501, Japan
| | - Yasuko Okamoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514, Japan
| | - Takuya Hashida
- Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo, 171-8501, Japan
| | - Kosuzu Shiojiri
- Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo, 171-8501, Japan
| | - Ayumi Ohsaki
- College of Humanities and Sciences, Nihon University, Sakurajosui, Setagaya-ku, Tokyo, 156-8550, Japan
| | - Yoshinori Saito
- Graduate School of Biomedical Sciences, Nagasaki University, Bunkyo-machi, Nagasaki, 852-8521, Japan
| | - Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514, Japan
| | - Xun Gong
- Kunming Institute of Botany, Chinese Academy of Science, Kunming, 650201, China
| | - Chiaki Kuroda
- Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo, 171-8501, Japan
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4
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Tori M, Kuroda C. Chemical Constituents of Ligularia Species (Asteraceae) and Their Diversity in East Asia. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2021; 113:1-247. [PMID: 33721145 DOI: 10.1007/978-3-030-53028-0_1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
More than 100 Ligularia species and those of several related genera (Cremanthodium, Cacalia, Senecio, and others) in the plant family Senecioneae grow in East Asia. For many years, researchers have studied the chemical constituents of these plants, and terpenoids, flavonoids, sterols, alkaloids, and aromatic compounds have been isolated. Among these, in particular, numerous sesquiterpenoids were reported. In this contribution, relevant chemical studies are described mainly from literature reports appearing since 2000, inclusive of investigations performed by the present authors, on the diversity in secondary metabolites of Ligularia growing in the Hengduan Mountains area of China, focusing on eremophilane sesquiterpenoids and other metabolites. Terpenoids and aromatic compounds (totaling 1049), both new and known, are listed. Genetic studies and synthesis investigations are also reviewed briefly.
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Affiliation(s)
- Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, Japan.
| | - Chiaki Kuroda
- Department of Chemistry, Rikkyo University, Tokyo, Japan
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5
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Xu H, Dickschat JS. Germacrene A-A Central Intermediate in Sesquiterpene Biosynthesis. Chemistry 2020; 26:17318-17341. [PMID: 32442350 PMCID: PMC7821278 DOI: 10.1002/chem.202002163] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 05/20/2020] [Indexed: 01/17/2023]
Abstract
This review summarises known sesquiterpenes whose biosyntheses proceed through the intermediate germacrene A. First, the occurrence and biosynthesis of germacrene A in Nature and its peculiar chemistry will be highlighted, followed by a discussion of 6-6 and 5-7 bicyclic compounds and their more complex derivatives. For each compound the absolute configuration, if it is known, and the reasoning for its assignment is presented.
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Affiliation(s)
- Houchao Xu
- Kekulé-Institute for Organic Chemistry and BiochemistryUniversity of BonnGerhard-Domagk-Straße 153121BonnGermany
| | - Jeroen S. Dickschat
- Kekulé-Institute for Organic Chemistry and BiochemistryUniversity of BonnGerhard-Domagk-Straße 153121BonnGermany
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6
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Okamoto Y, Fukui A, Hashida T, Shiojiri K, Kuroda C, Tori M, Gong X, Hanai R. Chemical Composition of Intergeneric Hybrids Between Ligularia and Cremanthodium Collected in Sichuan Province of China. Nat Prod Commun 2019. [DOI: 10.1177/1934578x19878931] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Two intergeneric hybrids between Ligularia nelumbifolia and Cremanthodium stenoglossum were examined with respect to the chemical composition of root extracts and the sequences of neutral DNA regions. The DNA data showed that the direction of hybridization was different between the individuals. Eremophilane sesquiterpenes were found in both hybrids and deduced to have come from their Cremanthodium parents, because sesquiterpenes were detected in C. stenoglossum but not in L. nelumbifolia.
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Affiliation(s)
- Yasuko Okamoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Japan
| | - Arisa Fukui
- Department of Chemistry, Rikkyo University, Tokyo, Japan
| | - Takuya Hashida
- Department of Chemistry, Rikkyo University, Tokyo, Japan
| | | | - Chiaki Kuroda
- Department of Chemistry, Rikkyo University, Tokyo, Japan
| | - Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Japan
| | - Xun Gong
- Kunming Institute of Botany, Chinese Academy of Science, China
| | - Ryo Hanai
- Department of Life Science and Research Center of Life Science, Rikkyo University, Tokyo, Japan
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7
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Ye Y, Dawa D, Liu GH, Zhao M, Tseden D, Gu YC, Ding LS, Cao ZX, Zhou Y. Antiproliferative Sesquiterpenoids from Ligularia rumicifolia with Diverse Skeletons. JOURNAL OF NATURAL PRODUCTS 2018; 81:1992-2003. [PMID: 30212198 DOI: 10.1021/acs.jnatprod.8b00197] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Twenty-two new sesquiterpenoids with four skeletal types and 15 known analogues were isolated from the whole plants of Ligularia rumicifolia. The structures of the isolates were elucidated based on comprehensive spectroscopic data analysis. Compound 1 is a C14 nor-sesquiterpenoid featuring a 6/6/6 tricyclic skeleton with a 9,13-ether bridge. The absolute configuration of 2 was established through single-crystal X-ray diffraction data. Compounds 13-16 exhibited in vitro antiproliferative activity against the four human tumor cell lines A-549, HGC-27, HeLa, and MV4-11. Specifically, compounds 13 and 16 showed antiproliferative activity against the MV4-11 cell line with IC50 values of 0.5 ± 0.2 and 1.1 ± 0.5 μM, respectively.
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Affiliation(s)
- Ye Ye
- Chengdu Institute of Biology, Chinese Academy of Sciences , Chengdu 610041 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Drolma Dawa
- Tibet Autonomous Region Institute for Food and Drug Control , Lhasa 850000 , People's Republic of China
| | - Guang-Hui Liu
- Chengdu Institute of Biology, Chinese Academy of Sciences , Chengdu 610041 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Min Zhao
- Chengdu Institute of Biology, Chinese Academy of Sciences , Chengdu 610041 , People's Republic of China
| | - Dorje Tseden
- Tibet Autonomous Region Institute for Food and Drug Control , Lhasa 850000 , People's Republic of China
| | - Yu-Cheng Gu
- Syngenta Jealott's Hill International Research Centre, Berkshire RG42 6EY , U.K
| | - Li-Sheng Ding
- Chengdu Institute of Biology, Chinese Academy of Sciences , Chengdu 610041 , People's Republic of China
| | - Zhi-Xing Cao
- Pharmacy College , Chengdu University of Traditional Chinese Medicine , Chengdu 611137 , People's Republic of China
| | - Yan Zhou
- Chengdu Institute of Biology, Chinese Academy of Sciences , Chengdu 610041 , People's Republic of China
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8
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Nakashima K, Hoshiyama K, Hayami C, Sakaoku M, Okamoto Y, Kuroda C, Gong X, Tori M. Eremophilane Sesquiterpenoids and Nor- and Dinorsesquiterpenoids from Ligularia virgaurea Collected in China. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Four samples of Ligularia virgaurea collected in China afforded three new eremophilane sesquiterpenoids, one new norsesquiterpenoid, and two new dinorsesquiterpenoids as well as 28 known compounds. All the four samples belonged to the ligularol type (L type), one of the five chemotypes we have described for this species. The configuration of the previously reported eremophila-7(11),9-dien-12,8-olide is revised to be H-8α. The absolute configuration of ethyl 8-oxoeremophila-7(11),9-dien-12-oate was established to be 4 S,5 R by a DFT calculation.
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Affiliation(s)
- Katsuyuki Nakashima
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514 Japan
| | - Kie Hoshiyama
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514 Japan
| | - Chika Hayami
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514 Japan
| | - Misato Sakaoku
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514 Japan
| | - Yasuko Okamoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514 Japan
| | - Chiaki Kuroda
- Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Xun Gong
- Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, China
| | - Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514 Japan
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9
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Joshi D, Nailwal M, Mohan L, Melkani AB. Ligularia amplexicaulis (wall.) DC. Essential oil composition and antibacterial activity. JOURNAL OF ESSENTIAL OIL RESEARCH 2018. [DOI: 10.1080/10412905.2018.1427636] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | - Manoj Nailwal
- Department of Chemistry, Kumaun University, Nainital, India
| | - Lalit Mohan
- Department of Chemistry, Kumaun University, Nainital, India
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10
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Kuroda C, Kobayashi R, Nagata A, Nakadozono Y, Itoh T, Okamoto Y, Tori M, Hanai R, Gong X. Terpenoids and Phenylpropanoids in Ligularia duciformis, L. kongkalingensis, L. nelumbifolia, and L. limprichtii. Molecules 2017; 22:E2062. [PMID: 29186833 PMCID: PMC6149998 DOI: 10.3390/molecules22122062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 11/22/2017] [Accepted: 11/23/2017] [Indexed: 11/17/2022] Open
Abstract
The diversity in root chemicals and evolutionally neutral DNA regions in the complex of Ligularia duciformis, L. kongkalingensis, and L. nelumbifolia (the d/k/n complex) was studied using eight samples collected in central and northern Sichuan Province of China. Cacalol (14) and epicacalone (15), rearranged eremophilanes, were isolated from the complex for the first time. Two new phenylpropanoids were also obtained. Seven of the eight samples produced phenylpropanoids and the other produced lupeol alone. Two of the seven samples also produced furanoeremophilanes or their derivatives and one produced oplopanes. The geographical distribution of the sesquiterpene-producing populations suggests that the production of sesquiterpenes evolved independently in separate regions. L. limprichtii collected in northern Sichuan was also analyzed and its chemical composition and the sequence of internal transcribed spacers (ITSs) in the ribosomal RNA gene cluster were found to be similar to that in the d/k/n complex and L. yunnanensis, which are morphologically similar.
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Affiliation(s)
- Chiaki Kuroda
- Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan.
| | - Ryohei Kobayashi
- Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan.
| | - Ayumi Nagata
- Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan.
| | - Yumi Nakadozono
- Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan.
| | - Taketo Itoh
- Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan.
| | - Yasuko Okamoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan.
| | - Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan.
| | - Ryo Hanai
- Department of Life Science, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan.
| | - Xun Gong
- Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, China.
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11
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Sequence of bromination of ( E )-4,4-dimethyl- 6-isobutylidenecyclohex-2-en-1-one. MENDELEEV COMMUNICATIONS 2017. [DOI: 10.1016/j.mencom.2017.09.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Kuroda C, Inagaki K, Okamoto Y, Tori M, Hanai R, Yamada H, Nagano H, Gong X. Chemical Diversity in Ligularia oligonema. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The chemical composition of a sample of the title species collected in Pianma, Lushui County, Yunnan Province of China, was examined. Two 3,6,10-oxygenated and two 3,6-oxygenated furanoeremophilanes were isolated. Structures of two new compounds were elucidated. The 3,6-oxygenated furanoeremophilanes were not detected in a sample of the same species previously collected in Laojunshan, Jianchuan County, Yunnan, indicating chemical diversity in the species.
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Affiliation(s)
- Chiaki Kuroda
- Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Kou Inagaki
- Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Yasuko Okamoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Ryo Hanai
- Department of Life Science, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Hiroka Yamada
- Department of Chemistry, Ochanomizu University, Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
| | - Hajime Nagano
- Department of Chemistry, Ochanomizu University, Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
| | - Xun Gong
- Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, China
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13
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Saito Y, Ichihara M, Takashima Y, Okamoto Y, Gong X, Hanai R, Kuroda C, Tori M. Chemical constituents of hybrids of Ligularia cyathiceps and L. lamarum/L. subspicata collected in China: Structures of subspicatins M, N, O 1, and O 2, and related compounds. PHYTOCHEMISTRY 2017; 140:69-76. [PMID: 28460262 DOI: 10.1016/j.phytochem.2017.04.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 04/13/2017] [Accepted: 04/18/2017] [Indexed: 06/07/2023]
Abstract
Three natural hybrids and an introgressed individual of Ligularia were evaluated based on a combination of morphology, root chemicals, and nucleotide sequences of evolutionally neutral regions to understand the chemical outcomes of hybridization and introgression. Six previously undescribed eremophilane sesquiterpenes were isolated from hybrids between L. cyathiceps and L. lamarum/L. subspicata, and benzofurans were isolated from L. subspicata for the first time. Their structures were elucidated based on spectroscopic analyses. Some compounds produced by hybrids have not been detected in either parental species, indicating that the metabolic profile was altered by hybridization and introgression.
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Affiliation(s)
- Yoshinori Saito
- Graduate School of Biomedical Sciences, Nagasaki University, Bunkyo-machi, Nagasaki 852-8521, Japan; Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514 Japan.
| | - Mayu Ichihara
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514 Japan
| | - Yuriko Takashima
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514 Japan
| | - Yasuko Okamoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514 Japan
| | - Xun Gong
- Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, China
| | - Ryo Hanai
- Department of Life Science, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Chiaki Kuroda
- Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514 Japan
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14
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Tori M. [Diversity of Plants Belonging to the Genus Ligularia (Asteraceae) Based on Terpenoids and Synthetic Studies on Some Terpenoids]. YAKUGAKU ZASSHI 2016; 136:309-27. [PMID: 26831809 DOI: 10.1248/yakushi.15-00238] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The terpenoid constituents of Ligularia virgaurea (30 samples), Ligularia pleurocaulis (8 samples), Ligularia dictyoneura (8 samples), Ligularia brassicoides (5 samples), Ligularia lingiana (1 sample), and Ligularia liatroides (1 sample)(all belonging to section Senecillis of Ligularia, Asteraceae and collected in Yunnan, Sichuan, Qinghai, and Gansu provinces, China), from which 220 compounds were isolated, including 113 novel ones, are reviewed. Five chemotypes were identified in L. virgaurea based on their chemical constituents, while three clades were detected from the base sequences. Although intra-specific diversity was found in L. virgaurea, more samples were needed of other species in order to reach a definite conclusion. Inter-specific diversity was also examined in section Senecillis but was restricted due to the scarcity of samples. Synthetic studies on chiral natural products to determine their absolute configurations, especially those of riccardiphenols A and B as well as crispatanolide, which were all isolated from the liverwort, are briefly reviewed.
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Affiliation(s)
- Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
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15
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Tori M. Terpenoid Composition and Base Sequences of Ligularia virgaurea (Asteraceae) Grown in the Hengduan Mountain Area in China and a Comment on Drawing Structures. Chem Pharm Bull (Tokyo) 2016; 64:193-206. [PMID: 26936046 DOI: 10.1248/cpb.c15-00878] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A chemical analysis of 30 samples of Ligularia virgaurea (Asteraceae) collected in Sichuan province and its adjacent territories in China was reviewed. These samples afforded 146 compounds, 73 of which were novel, and the chemical constituents were classified into 8 categories: (1) simple eremophilanes (without ring C) and eudesmanes including nor-derivatives, (2) furanoeremophilanes and lactones with a 1(10)-saturated bond, (3) furanoeremophilanes and lactones with a 1(10)-unsaturated bond, 1,10-epoxide, or 10-ol, (4) furanoeremophilanes and lactones with 1(10)-en-2-one, 1(10)-en-2-ol, or 1-en-3-one, (5) furanoeremophilanes and lactones with 1(10)-en-9-one, 1(10)-en-9-ol, or 1,10-epoxy-9-one, (6) cacalol and their derivatives, (7) bakkanes and their derivatives, and (8) others, as shown in Tables 1-7. In these studies, five chemotypes were identified in addition to three clades from the DNA sequences of L. virgaurea. The structural determination of some compounds was also discussed and a comment on how to express the real structure was proposed, particularly for spiro compounds.
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Affiliation(s)
- Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
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16
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Suga T, Shiina M, Asami Y, Iwatsuki M, Yamamoto T, Nonaka K, Masuma R, Matsui H, Hanaki H, Iwamoto S, Onodera H, Shiomi K, Ōmura S. Paraphaeosphaeride D and berkleasmin F, new circumventors of arbekacin resistance in MRSA, produced by Paraphaeosphaeria sp. TR-022. J Antibiot (Tokyo) 2016; 69:605-10. [DOI: 10.1038/ja.2016.70] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 04/13/2016] [Accepted: 05/09/2016] [Indexed: 11/09/2022]
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17
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Wu L, Liao Z, Liu C, Jia H, Sun J. Eremophilane Sesquiterpenes from the GenusLigularia. Chem Biodivers 2016; 13:645-71. [DOI: 10.1002/cbdv.201500169] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 09/25/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Ling Wu
- Department of Pharmaceutical Engineering; School of Chemistry and Chemical Engineering; Southeast University; Nanjing 211189 P. R. China
| | - Zhixin Liao
- Department of Pharmaceutical Engineering; School of Chemistry and Chemical Engineering; Southeast University; Nanjing 211189 P. R. China
| | - Chao Liu
- Institute of Agro-Food Science and Technology; Shangdong Academy of Agricultural Sciences; 202 Gongyue North Road Jinan 250110 P. R. China
| | - Haiyang Jia
- Department of Pharmaceutical Engineering; School of Chemistry and Chemical Engineering; Southeast University; Nanjing 211189 P. R. China
| | - Jinyue Sun
- Institute of Agro-Food Science and Technology; Shangdong Academy of Agricultural Sciences; 202 Gongyue North Road Jinan 250110 P. R. China
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Kuroda C, Shibayama C, Inoue K, Okamoto Y, Tori M, Saito Y, Hanai R, Gong X. Chemical Lineages of Ligularia Fischeri. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601100202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Six Ligularia fischeri samples, two from Sichuan (samples 1 and 2) and four from Chongqing (samples 3–6), were examined for root chemicals and the DNA sequence of the internal transcribed spacers of the ribosomal RNA gene. Samples 2 and 3 contained benzofurans. The isolation of benzofurans shows that the chemical diversity in L. fischeri is higher than previously reported. Samples 1, 4, 5, and 6 contained eremophilanes. However, the compounds were different between sample 1 and samples 4–6, indicating variation within eremophilane producers. DNA data indicated that introgression could be a mechanism of benzofuran production in sample 2 and that sample 1 and samples 4–6 were genetically separate.
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Affiliation(s)
- Chiaki Kuroda
- Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Chiemi Shibayama
- Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Kyosuke Inoue
- Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Yasuko Okamoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770–8514, Japan
| | - Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770–8514, Japan
| | - Yoshinori Saito
- Graduate School of Biomedical Sciences, Nagasaki University, Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Ryo Hanai
- Department of Life Science, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171–8501, Japan
| | - Xun Gong
- Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, China
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19
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Okamoto Y, Taniguchi M, Terada K, Nakashima K, Gong X, Hanai R, Tori M, Kuroda C. Diversity in Chemical Constituents of Ligularia Longihastata Collected in China. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601100203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Root constituents of Ligularia longihastata were examined for the first time. Fourteen eremophilane sesquiterpenes, including two new eremophilanes identified as 3α-isobutyroyloxy-7β H-eremophila-9,11-dien-8-one and 3β-angeloyloxy-1β,10β-epoxyfuranoeremophilan-9-one, and three eudesmanes were isolated. From samples collected in Baiyu County, Sichuan Province, furanoeremophilane derivatives were isolated, while various eremophilan-8-ones were isolated from samples collected in Kangding County, Sichuan. The results suggest chemical diversity in the species.
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Affiliation(s)
- Yasuko Okamoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514 Japan
| | - Mizuho Taniguchi
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514 Japan
| | - Kaori Terada
- Department of Chemistry and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Katsuyuki Nakashima
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514 Japan
| | - Xun Gong
- Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, China
| | - Ryo Hanai
- Department of Life Science and Research Center for Life Science, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514 Japan
| | - Chiaki Kuroda
- Department of Chemistry and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
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20
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Four New Sesquiterpenoids from Ligularia subspicata Collected in China; Isolation of a Bakkane-type Lactone, an Eremophilane-type Lactone, and Two Ortho Esters. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501000607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
A bakkane type lactone, an eremophilane type lactone, and two ortho esters were isolated from Ligularia subspicata collected in Sichuan Province, China. The ortho ester type compound has been isolated from Ligularia for the first time.
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21
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Taniguchi M, Nakashima K, Okamoto Y, Gong X, Kuroda C, Tori M. Constituents of Ligularia brassicoides Collected in China: A New Diels-Alder Adduct of Eremophilan-10βol and Methacrylic Acid. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501000606] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Chemical study of four samples of Ligularia brassicoides collected in Sichuan Province of China afforded 18 compounds, five of which were new. LC-MS profiles were somehow similar to each other, although the compound ratio was slightly different. One of the new compound was a Diels-Alder adduct between franoeremophilan-10β-ol and methacrylic acid.
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Affiliation(s)
- Mizuho Taniguchi
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770–8514 Japan
| | - Katsuyuki Nakashima
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770–8514 Japan
| | - Yasuko Okamoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770–8514 Japan
| | - Xun Gong
- Kunming Institute of Botany, Chinese Academy of Science, Kunming 650204, China
| | - Chiaki Kuroda
- Department of Chemistry and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171–8501, Japan
| | - Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770–8514 Japan
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22
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Abstract
Ligularia vellerea and L. melanothyrsa have been found to share chemical characteristics based on geography. In one chemotype (Shangrila type), the major components were either 15-oxygenated furanoeremophilanes or eremophilanolides; and in another (Luguhu type), either 1-angeloyloxyfuranoeremophilanes or corresponding lactones. The two L. vellerea samples were found to have experienced hybridization with either L. cyathiceps or L. kanaitzensis; however, compounds typical of L. vellerea alone were isolated from them.
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23
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Schifrin A, Ly TTB, Günnewich N, Zapp J, Thiel V, Schulz S, Hannemann F, Khatri Y, Bernhardt R. Characterization of the Gene Cluster CYP264B1-geoA fromSorangium cellulosumSo ce56: Biosynthesis of (+)-Eremophilene and Its Hydroxylation. Chembiochem 2014; 16:337-44. [DOI: 10.1002/cbic.201402443] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Indexed: 11/06/2022]
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Saito Y, Kamada A, Okamoto Y, Gong X, Kuroda C, Tori M. Isolation and Structure of Three Bislactones, Eremopetasitenin B4 and Eremofarfugins F and G, from Ligularia przewalskii and Revision of the Structure of an Epoxy-lactone Isolated from Ligularia intermedia. CHEM LETT 2014. [DOI: 10.1246/cl.140745] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yoshinori Saito
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | - Aya Kamada
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | - Yasuko Okamoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | - Xun Gong
- Kunming Institute of Botany, Chinese Academy of Sciences
| | | | - Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
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26
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Shimizu A, Watanabe S, Hanai R, Okamoto Y, Tori M, Gong X, Kuroda C. Chemical and Genetic Studies on Hybrid ofLigularia subspicataandLigularia cyathicepsCollected in Yunnan Province of China. Chem Biodivers 2014; 11:1438-48. [DOI: 10.1002/cbdv.201400133] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Indexed: 11/09/2022]
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27
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Structure and cytotoxic evaluation of five 12-oxygenated eremophilanes from Ligularia lingiana. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.06.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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28
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Shimizu A, Suzuki Y, Hanai R, Okamoto Y, Tori M, Gong X, Kuroda C. Chemical and genetic similarity and diversity of Ligularia anoleuca and L. fischeri collected in the Hengduan Mountains of China. PHYTOCHEMISTRY 2014; 102:137-144. [PMID: 24725977 DOI: 10.1016/j.phytochem.2014.03.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2013] [Revised: 10/21/2013] [Accepted: 03/18/2014] [Indexed: 06/03/2023]
Abstract
The sesquiterpenoid composition in the root and the DNA sequences of evolutionarily neutral regions were studied in Ligularia anoleuca and Ligularia fischeri (Asteraceae) collected in the Sichuan Province of China. LC-MS analysis showed that L. anoleuca populations from different localities had different chemical compositions. However, the isolated compounds were similar to each other, indicating that the differences in chemical composition were not large. The DNA analysis suggested that the two species were indistinguishable. Seventeen furanoeremophilanes and an eremophilane acetal were isolated.
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Affiliation(s)
- Anna Shimizu
- Department of Chemistry and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Yurika Suzuki
- Department of Chemistry and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Ryo Hanai
- Department of Life Science and Research Center for Life Science, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan.
| | - Yasuko Okamoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan.
| | - Xun Gong
- Kunming Institute of Botany, Chinese Academy of Science, Kunming 650204, China.
| | - Chiaki Kuroda
- Department of Chemistry and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan.
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29
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Saito Y, Ichihara M, Okamoto Y, Gong X, Kuroda C, Tori M. Twelve new compounds from Ligularia melanothyrsa; isolation of melanothyrsins A–E, normelanothyrsin A, and other eremophilane sesquiterpenoids. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.02.080] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Hirota H, Horiguchi Y, Kawaii S, Hanai R, Gong X, Kuroda C. The First Isolation of Furanoeremophilane from Ligularia nelumbifolia. Nat Prod Commun 2014. [DOI: 10.1177/1934578x1400900311] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Ligularol (1), a furanoeremophilane, was isolated together with eremophil-1(10)-en-11-ol (2) from one of eight collected samples of Ligularia nelumbifolia and L. kongkalingensis, a closely related species. It is proposed that the ability to produce the furanoeremophilane has been acquired through hybridization.
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Affiliation(s)
- Hiroshi Hirota
- Antibiotics Laboratory, RIKEN, Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yurie Horiguchi
- Antibiotics Laboratory, RIKEN, Hirosawa, Wako, Saitama 351-0198, Japan
- Faculty of Science and Engineering, Tokyo Denki University, Hatoyama, Saitama 350-0394, Japan
| | - Satoru Kawaii
- Faculty of Science and Engineering, Tokyo Denki University, Hatoyama, Saitama 350-0394, Japan
| | - Ryo Hanai
- Department of Life Science and Research Center for Life Science, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171–8501, Japan
| | - Xun Gong
- Kunming Institute of Botany, Chinese Academy of Science, Kunming 650204, China
| | - Chiaki Kuroda
- Department of Chemistry and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171–8501, Japan
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31
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Saito Y, Mukai T, Iwamoto Y, Baba M, Takiguchi K, Okamoto Y, Gong X, Kawahara T, Kuroda C, Tori M. Germacranolides and Their Diversity of Eupatorium heterophyllum Collected in P. R. China. Chem Pharm Bull (Tokyo) 2014; 62:1092-9. [DOI: 10.1248/cpb.c14-00426] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yoshinori Saito
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | - Tomomi Mukai
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | - Yuko Iwamoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | - Makiko Baba
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | - Koji Takiguchi
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | - Yasuko Okamoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | - Xun Gong
- Kunming Institute of Botany, Chinese Academy of Science
| | | | | | - Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
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32
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Kuroda C, Hanai R, Tori M, Okamoto Y, Saito Y, Nagano H, Ohsaki A, Hirota H, Kawahara T, Gong X. Diversity in Furanoeremophilane Composition Produced by Ligularia Species (Asteraceae) in the Hengduan Mountains Area of China. J SYN ORG CHEM JPN 2014. [DOI: 10.5059/yukigoseikyokaishi.72.717] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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33
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Saito Y, Ichihara M, Takiguchi K, Tanio Y, Okamoto Y, Hanai R, Kuroda C, Kawahara T, Gong X, Tori M. Chemical and genetic diversity of Cremanthodium lineare. PHYTOCHEMISTRY 2013; 96:184-190. [PMID: 24119572 DOI: 10.1016/j.phytochem.2013.08.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 05/28/2013] [Accepted: 08/13/2013] [Indexed: 06/02/2023]
Abstract
Chemical constituents and evolutionally neutral DNA sequences of six samples of Cremanthodium lineare Maxim., collected in the Sichuan Province of China, were studied. Three samples produced furanoeremophilanes and the other three, eremophilan-8-ones. The chemotypes were found to be correlated with DNA sequence types, suggesting that the chemical diversity observed has a genetic origin. Production of furanoeremophilanes by a Cremanthodium species suggests an evolutionary relationship between Cremanthodium and Ligularia species, and possibly to related genera.
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Affiliation(s)
- Yoshinori Saito
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
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34
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Saito Y, Taniguchi M, Komiyama T, Ohsaki A, Okamoto Y, Gong X, Kuroda C, Tori M. Four new compounds from Ligularia virgaurea: isolation of eremophilane and noreremophilane sesquiterpenoids and the absolute configuration of 2α-hydroxyeremophil-11-en-9-one by CD spectrum and DFT calculation. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.06.104] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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35
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36
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Hanai R, Yamada H, Suzuki Y, Nagano H, Kawahara T, Yu JJ, Gong X, Kuroda C. Chemical Constituents of Ligularia Nelumbifolia and L. Subspicata Hybrid Collected in Shangrila County, Yunnan Province of China. Nat Prod Commun 2012. [DOI: 10.1177/1934578x1200701204] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Four Ligularia individuals possessing morphological characters of both L. nelumbifolia and L. subspicata were discovered in Shangrila County, Yunnan Province, China. DNA sequencing showed that the specimens were hybrids of the two species and their maternal parent was L. subspicata. The chemical composition of the root extract was examined for three of them as well as L. nelumbifolia and L. subspicata collected sympatrically. Nelumol was isolated from L. nelumbifolia, and furanoeremophilanes from L. subspicata. While nelumol and furanoeremophilanes were detected in two of the hybrid samples, only furanoeremophilanes were detected in the others.
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Affiliation(s)
- Ryo Hanai
- Department of Life Science and Research Center for Life Science, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Hiroka Yamada
- Department of Chemistry, Ochanomizu University, Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
| | - Yurika Suzuki
- Department of Chemistry, and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Hajime Nagano
- Department of Chemistry, Ochanomizu University, Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
| | - Takayuki Kawahara
- Shikoku Research Center, Forestry and Forest Products Research Institute, Asakuranishi-machi, Kochi, Kochi 780-8077, Japan
| | - Jiao-Jun Yu
- Kunming Institute of Botany, Chinese Academy of Science, Kunming 650204, China
| | - Xun Gong
- Kunming Institute of Botany, Chinese Academy of Science, Kunming 650204, China
| | - Chiaki Kuroda
- Department of Chemistry, and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
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37
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Nagano H, Hanai R, Yamada H, Matsushima M, Miura Y, Hoya T, Ozawa M, Fujiwara M, Kodama H, Torihata A, Onuki H, Nezu Y, Kawai S, Yamazaki M, Hirota H, Saito Y, Tori M, Ohsaki A, Gong X, Kuroda C. Chemical and genetic study of Ligularia duciformis and related species in Sichuan and Yunnan Provinces of China. Chem Biodivers 2012; 9:789-805. [PMID: 22492496 DOI: 10.1002/cbdv.201100240] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The chemical constituents of the root extracts and the evolutionarily neutral DNA base sequences were studied for 28 samples of Ligularia duciformis, L. kongkalingensis, and L. nelumbifolia collected in Sichuan and Yunnan Provinces of China. The samples could be classified into four chemotypes (1-4). Sesquiterpenoids having eremophilane and oplopane skeletons were isolated from two (Chemotype 1) and three (Chemotype 2) samples, respectively. Two new oplopane derivatives were isolated and their structures were determined. In 18 samples, phenylpropenoids were the major components (Chemotype 3). In five samples, neither phenylpropenoids nor sesquiterpenoids were found (Chemotype 4). Despite this large chemical variety, no correlation was found between the chemotype and the morphological criteria of species identification. The analysis of the evolutionarily neutral DNA regions also indicated that the samples were not separated into distinct clades and that introgression was extensive.
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Affiliation(s)
- Hajime Nagano
- Department of Chemistry, Ochanomizu University, Otsuka, Bunkyo-ku, Tokyo, Japan.
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38
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Phaeophytin analogues from Ligularia knorringiana. Molecules 2012; 17:5219-24. [PMID: 22565475 PMCID: PMC6268028 DOI: 10.3390/molecules17055219] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Revised: 04/25/2012] [Accepted: 04/27/2012] [Indexed: 11/17/2022] Open
Abstract
A new phaeophytin, ligulariaphytin A, together with five known phaeophytins, were isolated from the aerial parts of Ligularia knorringiana. The structure of ligulariaphytin A was elucidated as 131-hydroxy-131,132-peroxyphaeophorbide A ethyl ester (1), and the five known compounds were identified as 132-hydroxyphaeophorbide A ethyl ester (2), 173-ethoxyphaeophorbide A (3), phaeophytin B (4), phaeophytin A (5), and phaeophorbide B ethyl ester (6), respectively, based on spectroscopic analysis and by comparison of their spectral data with those reported previously in the literature. All compounds were evaluated for their in vitro cytotoxic activities against cultured Hela cell, and were found to show only very weak cytotoxicity.
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39
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Saito Y, Iwamoto Y, Okamoto Y, Gong X, Kuroda C, Tori M. Four New Guaianolides and Acetylenic Alcohol from Saussurea Katochaete Collected in China. Nat Prod Commun 2012. [DOI: 10.1177/1934578x1200700407] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Four new guaianolides and an acetylenic alcohol were isolated from Saussurea katochaete (Asteraceae) collected in China. The structures were determined based on the spectroscopic data including the absolute configuration by application of advanced Mosher's method.
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Affiliation(s)
- Yoshinori Saito
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima,770-8514, Japan
| | - Yuko Iwamoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima,770-8514, Japan
| | - Yasuko Okamoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima,770-8514, Japan
| | - Xun Gong
- Kunming Institute of Botany, Chinese Academy of Science, Kunming 650204, China
| | - Chiaki Kuroda
- Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima,770-8514, Japan
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40
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Hsieh SF, Hsieh TJ, El-Shazly M, Du YC, Wu CC, Hwang TL, Wu YC, Chang FR. Chemical Constituents from Farfugium Japonicum Var. formosanum. Nat Prod Commun 2012. [DOI: 10.1177/1934578x1200700405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Two new eremophilenolides, 6β8β10β-trihydroxyeremophil-7(11)-en-12,8-olide (1) and 3βacetoxy-8α-hydroxy-6β-methoxyeremophila-7(11),9-dien-12,8-olide (2) along with twenty-nine other compounds were obtained from the methanolic extracts of the aerial parts and rhizomes of Farfugium japonicum (L.) Kitam. v ar. formosanum (Hayata) Kitam. (Compositae = Asteraceae). The structures of the isolated compounds were characterized and identified by spectral techniques. Compounds 5, 6, 10, 12-24, 29, and 30, were reported for the first time from this genus. Cytotoxicity and anti-inflammatory activity of the isolated compounds were evaluated. Compounds 3 and 16 possessed moderate cytotoxicity against human breast cancer cell line (MCF 7). Compounds 3, 16, 25 and 26 exhibited moderate cytotoxicity against hepatoma cells (Hep G2 and Hep 3B). With respect to the anti-inflammatory activity, compounds 15 and 16 (each 10 μg/mL) inhibited superoxide anion generation by human neutrophils in response to fMLP/CB by 92.0% and 87.3%, respectively.
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Affiliation(s)
- Sung-Fei Hsieh
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Center for General education, Fooyin University, Kaohsiung 807, Taiwan
| | - Tain-Jye Hsieh
- Bachelor Degree Program of Health Beauty, Fooyin University, Kaohsiung 807, Taiwan
| | - Mohamed El-Shazly
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, Ain-Shams University, Organization of African Unity Street 11566, Abassia, Cairo, Egypt
| | - Ying-Chi Du
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Chin-Chung Wu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, Chang Gung University, Taoyuan 333, Taiwan
| | - Yang-Chang Wu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Graduate Institute of Integrated Medicine, College of Chinese Medicine, China Medical University, Taichung 404, Taiwan
- Natural Medicinal Products Research Center, China Medical University Hospital, Taichung 404, Taiwan
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
- Research and Development Center of Chinese Herbal Medicines and New Drugs, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan
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Shimizu A, Suzuki Y, Torihata A, Hanai R, Saito Y, Tori M, Gong X, Kuroda C. Complex Diversity in Ligularia Kanaitzensis. Nat Prod Commun 2012. [DOI: 10.1177/1934578x1200700404] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Two samples of Ligularia kanaitzensis collected in the Shizhongshan Mountain region of Yunnan Province, as well as one sample collected in Sichuan Province, were analyzed with regard to root constituents and neutral DNA sequences. The two Shizhongshan samples were found to be different from each other and from other samples analyzed previously, indicating that the intra-specific diversity in the species was highly complex.
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Affiliation(s)
- Anna Shimizu
- Department of Chemistry and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Yurika Suzuki
- Department of Chemistry and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Atsushi Torihata
- Department of Chemistry and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Ryo Hanai
- Department of Life Science and Research Center for Life Science, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Yoshinori Saito
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514, Japan
| | - Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514, Japan
| | - Xun Gong
- Kunming Institute of Botany, Chinese Academy of Science, Kunming 650204, P. R. China
| | - Chiaki Kuroda
- Department of Chemistry and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
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Kuroda C, Hanai R, Nagano H, Tori M, Gong X. Diversity of Furanoeremophilanes in Major Ligularia Species in the Hengduan Mountains. Nat Prod Commun 2012. [DOI: 10.1177/1934578x1200700431] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The chemical and genetic diversity of Ligularia species in the Hengduan Mountains area of China is reviewed. A hypothesis that the production of furanoeremophilanes is ecologically advantageous is proposed.
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Affiliation(s)
- Chiaki Kuroda
- Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Ryo Hanai
- Department of Life Science, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Hajime Nagano
- Department of Chemistry, Ochanomizu University, Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
| | - Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Xun Gong
- Kunming Institute of Botany, Chinese Academy of Science, Kunming 650204, China
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Saito Y, Ichihara M, Okamoto Y, Gong X, Kuroda C, Tori M. Four New Eremophilane-Type Alcohols from Cremanthodium Helianthus Collected in China. Nat Prod Commun 2012. [DOI: 10.1177/1934578x1200700402] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Four new eremophilane-type sesquiterpenoid alcohols were isolated from Cremanthodium helianthus collected in China and their structures established on the basis of spectroscopic analyses. All of them had 9-en-8-one partial structures with one more double bond either Δ11, Δ11(13), or Δ7(11). Two of them had a hydroxy group at C-1 position.
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Affiliation(s)
- Yoshinori Saito
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514, Japan
| | - Mayu Ichihara
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514, Japan
| | - Yasuko Okamoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514, Japan
| | - Xun Gong
- Kunming Institute of Botany, Chinese Academy of Science, Kunming 650204, China
| | - Chiaki Kuroda
- Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514, Japan
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Tori M, Saito Y, Takiguchi K, Gong X, Kuroda C. THREE NEW BISABOLANE-TYPE SESQUITERPENOIDS FROM CREMANTHODIUM rHODOCEPHALUM (ASTERACEAE). HETEROCYCLES 2012. [DOI: 10.3987/com-12-s(n)47] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Saito Y, Ichihara M, Okamoto Y, Gong X, Kuroda C, Tori M. Four eremophil-9-en-8-one derivatives from Cremanthodium stenactinium samples collected in China. Molecules 2011; 16:10645-52. [PMID: 22183888 PMCID: PMC6264706 DOI: 10.3390/molecules161210645] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Revised: 12/09/2011] [Accepted: 12/16/2011] [Indexed: 12/02/2022] Open
Abstract
Two samples of Cremanthodium stenactinium (Asteraceae) were collected in Sichuan Province, China. From the ethyl acetate extracts of the roots, three new eremophilane-type sesquiterpenoids and one new trinoreremophilane compound were isolated, together with other known eremophilanes. Their structures were determined based on the spectroscopic data. This is the first report of isolation of eremophilane-type compounds from the genus Cremanthodium.
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Affiliation(s)
- Yoshinori Saito
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514, Japan; (M.T.)
| | - Mayu Ichihara
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514, Japan; (M.T.)
| | - Yasuko Okamoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514, Japan; (M.T.)
| | - Xun Gong
- Kunming Institute of Botany, Chinese Academy of Science, Kunming 650204, China;
| | - Chiaki Kuroda
- Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan;
| | - Motoo Tori
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514, Japan; (M.T.)
- Author to whom correspondence should be addressed; ; Tel.: +81-88-602-8462; Fax: +81-88-655-3051
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Saito Y, Ichihara M, Okamoto Y, Gong X, Kuroda C, Tori M. Five new subspicatins and noreremophilane from Parasenecio petasitoides collected in China. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.09.063] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Yang JL, Wang R, Shi YP. Phytochemicals and biological activities of Ligularia species. NATURAL PRODUCTS AND BIOPROSPECTING 2011. [PMCID: PMC4131708 DOI: 10.1007/s13659-011-0003-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Ligularia, an important genus of the Compositae family, has captured the interest of natural product chemists for years. Phytochemical investigations on the title genus have led to isolation of hundreds of secondary metabolites with various skeletons. Herein, we summarized the chemical constituents of this genus and their biological activities over the past few decades.
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Affiliation(s)
- Jun-Li Yang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000 China
| | - Rui Wang
- Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000 China
| | - Yan-Ping Shi
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000 China
- Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000 China
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Saito Y, Hattori M, Iwamoto Y, Takashima Y, Mihara K, Sasaki Y, Fujiwara M, Sakaoku M, Shimizu A, Chao X, Kuroda C, Gong X, Hanai R, Tori M. Overlapping chemical and genetic diversity in Ligularia lamarum and Ligularia subspicata. Isolation of ten new eremophilanes and a new seco-bakkane compound. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.01.082] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Okamoto Y, Saito Y, Kuroda C, Hanai R, Gong X, Tori M. Direct MS measurement of the extract of Ligularia virgaurea collected in Yunnan and Sichuan provinces of China. PHYTOCHEMICAL ANALYSIS : PCA 2010; 21:513-523. [PMID: 20333615 DOI: 10.1002/pca.1219] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
INTRODUCTION There are numerous Ligularia species in the eastern Qinghai-Tibet Plateau and adjacent areas. L. virgaurea has been used as a traditional folk medicine for the treatment of stomachache and nausea. Objective - To analyse chemical constituents of L. virgaurea, grown in Yunnan and Sichuan provinces of China. METHODOLOGY The direct MS measurement of the crude extract of plant samples was used for grouping of this species. As the main compounds were available in pure form, the main peaks were analysed by LCMS. RESULTS An easy and speedy method of analysis using MS spectra was developed. On the basis of the findings, L. virgaurea could be divided into two groups. The genetic studies also supported this grouping. Type 1 mainly includes virgaurenones and virgaurenolides. The MS of type 2 is quite different because it includes mainly ligularol and its congeners. Both MS were easily distinguished. CONCLUSION The crude extracts of 11 L. virgaurea samples already collected in recent years were analysed and it was possible to identify them as type 1 or 2. This method was applied to three samples collected in 2009 to successfully classify them as either type 1 or 2.
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Affiliation(s)
- Yasuko Okamoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho 770-8514, Japan
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Nagano H, Kanda M, Yamada H, Hanai R, Gong X, Kuroda C. Chemical and Genetic Study of Ligularia anoleuca and L. veitchiana in Yunnan and Sichuan Provinces of China. Helv Chim Acta 2010. [DOI: 10.1002/hlca.201000266] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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