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Georgieva MK, Santos AG. Theoretical Study on Chiral Boron Complex‐Promoted Asymmetric Diels‐Alder Cycloadditions. European J Org Chem 2022. [DOI: 10.1002/ejoc.202201082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Affiliation(s)
- Miglena K. Georgieva
- LAQV-REQUIMTE, Department of Chemistry NOVA School of Science and Technology Universidade Nova de Lisboa 2829-516 Caparica Portugal
| | - A. Gil Santos
- LAQV-REQUIMTE, Department of Chemistry NOVA School of Science and Technology Universidade Nova de Lisboa 2829-516 Caparica Portugal
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2
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Nguyen MTT, Nguyen HX, Dang PH, Le TH, Do TNV, Omar AM, Awale S, Nguyen NT. Panduratins Q-Y, dimeric metabolites from Boesenbergia rotunda and their antiausterity activities against the PANC-1 human pancreatic cancer cell line. PHYTOCHEMISTRY 2021; 183:112646. [PMID: 33421887 DOI: 10.1016/j.phytochem.2020.112646] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 12/18/2020] [Accepted: 12/22/2020] [Indexed: 06/12/2023]
Abstract
A methanolic extract of the rhizomes of Boesenbergia rotunda showed potent preferential cytotoxicity against PANC-1 human pancreatic cancer cells under nutrient deficiency conditions with a PC50 value of 6.6 μg/mL. Bioactivity-guided phytochemical investigation of the rhizomes of B. rotunda led to the isolation of nine undescribed dimeric metabolites, panduratins Q-Y. Their structures were elucidated based on NMR, MS, and ECD spectroscopic data interpretation. Panduratins Q-S and U-W exhibited potent cytotoxicity towards PANC-1 cell line with the PC50 values ranging from 0.8 to 6.3 μM. Panduratin W, which possessed a cyclohexenylchalcone-linked flavanone skeleton, showed the most cytotoxicity with a PC50 value of 0.8 μM under nutrient-deprived medium.
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Affiliation(s)
- Mai T T Nguyen
- Faculty of Chemistry, University of Science, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam; Cancer Research Laboratory, University of Science, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam; Vietnam National University, Quarter 6, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Viet Nam
| | - Hai X Nguyen
- Faculty of Chemistry, University of Science, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam; Vietnam National University, Quarter 6, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Viet Nam
| | - Phu H Dang
- Faculty of Chemistry, University of Science, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam; Vietnam National University, Quarter 6, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Viet Nam
| | - Tho H Le
- Faculty of Chemistry, University of Science, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam; Vietnam National University, Quarter 6, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Viet Nam
| | - Truong N V Do
- Faculty of Chemistry, University of Science, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam; Vietnam National University, Quarter 6, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Viet Nam
| | - Ashraf M Omar
- Division of Natural Drug Discovery, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Suresh Awale
- Division of Natural Drug Discovery, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Nhan T Nguyen
- Faculty of Chemistry, University of Science, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam; Cancer Research Laboratory, University of Science, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam; Vietnam National University, Quarter 6, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Viet Nam.
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3
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Morikawa T, Nagatomo A, Oka T, Miki Y, Taira N, Shibano-Kitahara M, Hori Y, Muraoka O, Ninomiya K. Glucose Tolerance-Improving Activity of Helichrysoside in Mice and Its Structural Requirements for Promoting Glucose and Lipid Metabolism. Int J Mol Sci 2019; 20:ijms20246322. [PMID: 31847420 PMCID: PMC6941121 DOI: 10.3390/ijms20246322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 12/12/2019] [Accepted: 12/13/2019] [Indexed: 01/02/2023] Open
Abstract
An acylated flavonol glycoside, helichrysoside, at a dose of 10 mg/kg/day per os for 14 days, improved the glucose tolerance in mice without affecting the food intake, visceral fat weight, liver weight, and other plasma parameters. In this study, using hepatoblastoma-derived HepG2 cells, helichrysoside, trans-tiliroside, and kaempferol 3-O-β-d-glucopyranoside enhanced glucose consumption from the medium, but their aglycones and p-coumaric acid did not show this activity. In addition, several acylated flavonol glycosides were synthesized to clarify the structural requirements for lipid metabolism using HepG2 cells. The results showed that helichrysoside and related analogs significantly inhibited triglyceride (TG) accumulation in these cells. The inhibition by helichrysoside was more potent than that by other acylated flavonol glycosides, related flavonol glycosides, and organic acids. As for the TG metabolism-promoting activity in high glucose-pretreated HepG2 cells, helichrysoside, related analogs, and their aglycones were found to significantly reduce the TG contents in HepG2 cells. However, the desacyl flavonol glycosides and organic acids derived from the acyl groups did not exhibit an inhibitory impact on the TG contents in HepG2 cells. These results suggest that the existence of the acyl moiety at the 6′′ position in the D-glucopyranosyl part is essential for glucose and lipid metabolism-promoting activities.
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Affiliation(s)
- Toshio Morikawa
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan; (A.N.); (T.O.); (Y.M.); (N.T.); (M.S.-K.); (Y.H.); (O.M.); (K.N.)
- Antiaging Center, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan
- Correspondence: ; Tel.: +81-6-4307-4306; Fax: +81-6-6729-3577
| | - Akifumi Nagatomo
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan; (A.N.); (T.O.); (Y.M.); (N.T.); (M.S.-K.); (Y.H.); (O.M.); (K.N.)
| | - Takahiro Oka
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan; (A.N.); (T.O.); (Y.M.); (N.T.); (M.S.-K.); (Y.H.); (O.M.); (K.N.)
| | - Yoshinobu Miki
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan; (A.N.); (T.O.); (Y.M.); (N.T.); (M.S.-K.); (Y.H.); (O.M.); (K.N.)
| | - Norihisa Taira
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan; (A.N.); (T.O.); (Y.M.); (N.T.); (M.S.-K.); (Y.H.); (O.M.); (K.N.)
| | - Megumi Shibano-Kitahara
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan; (A.N.); (T.O.); (Y.M.); (N.T.); (M.S.-K.); (Y.H.); (O.M.); (K.N.)
| | - Yuichiro Hori
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan; (A.N.); (T.O.); (Y.M.); (N.T.); (M.S.-K.); (Y.H.); (O.M.); (K.N.)
| | - Osamu Muraoka
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan; (A.N.); (T.O.); (Y.M.); (N.T.); (M.S.-K.); (Y.H.); (O.M.); (K.N.)
- Antiaging Center, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan
| | - Kiyofumi Ninomiya
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan; (A.N.); (T.O.); (Y.M.); (N.T.); (M.S.-K.); (Y.H.); (O.M.); (K.N.)
- Antiaging Center, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan
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Melanogenesis inhibitory activity of a 7-O-9'-linked neolignan from Alpinia galanga fruit. Bioorg Med Chem 2016; 24:6215-6224. [PMID: 27756508 DOI: 10.1016/j.bmc.2016.10.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 10/01/2016] [Accepted: 10/05/2016] [Indexed: 11/24/2022]
Abstract
An aqueous acetone extract from the fruit of Alpinia galanga (Zingiberaceae) demonstrated inhibitory effects on melanogenesis in theophylline-stimulated murine B16 melanoma 4A5 cells (IC50=7.3μg/mL). Through bioassay-guided separation of the extract, a new 7-O-9'-linked neolignan, named galanganol D diacetate (1), was isolated along with 16 known compounds including 14 phenylpropanoids (2-15). The structure of 1, including its absolute stereochemistry in the C-7 position, was elucidated by means of extensive NMR analysis and total synthesis. Among the isolates, 1 (IC50=2.5μM), 1'S-1'-acetoxychavicol acetate (2, 5.0μM), and 1'S-1'-acetoxyeugenol acetate (3, 5.6μM) exhibited a relatively potent inhibitory effect without notable cytotoxicity at effective concentrations. The following structural requirements were suggested to enhance the inhibitory activity of phenylpropanoids on melanogenesis: (i) compounds with 4-acetoxy group exhibit higher activity than those with 4-hydroxy group; (ii) 3-methoxy group dose not affect the activity; (iii) acetylation of the 1'-hydroxy moiety enhances the activity; and (iv) phenylpropanoid dimers with the 7-O-9'-linked neolignan skeleton exhibited higher activity than those with the corresponding monomer. Their respective enantiomers [1' (IC50=1.9μM) and 2' (4.5μM)] and racemic mixtures [(±)-1 (2.2μM) and (±)-2 (4.4μM)] were found to exhibit melanogenesis inhibitory activities equivalent to those of the naturally occurring optical active compounds (1 and 2). Furthermore, the active compounds 1-3 inhibited tyrosinase, tyrosine-related protein (TRP)-1, and TRP-2 mRNA expressions, which could be the mechanism of melanogenesis inhibitory activity.
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Morikawa T, Sueyoshi M, Chaipech S, Matsuda H, Nomura Y, Yabe M, Matsumoto T, Ninomiya K, Yoshikawa M, Pongpiriyadacha Y, Hayakawa T, Muraoka O. Suppressive effects of coumarins from Mammea siamensis on inducible nitric oxide synthase expression in RAW264.7 cells. Bioorg Med Chem 2012; 20:4968-77. [DOI: 10.1016/j.bmc.2012.06.031] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Revised: 06/16/2012] [Accepted: 06/18/2012] [Indexed: 01/20/2023]
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6
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Morikawa T, Chaipech S, Matsuda H, Hamao M, Umeda Y, Sato H, Tamura H, Kon'i H, Ninomiya K, Yoshikawa M, Pongpiriyadacha Y, Hayakawa T, Muraoka O. Antidiabetogenic oligostilbenoids and 3-ethyl-4-phenyl-3,4-dihydroisocoumarins from the bark of Shorea roxburghii. Bioorg Med Chem 2011; 20:832-40. [PMID: 22209731 DOI: 10.1016/j.bmc.2011.11.067] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Revised: 11/28/2011] [Accepted: 11/29/2011] [Indexed: 11/15/2022]
Abstract
A methanol extract of the bark of Shorea roxburghii (Dipterocarpaceae) was found to inhibit plasma glucose elevation in sucrose-loaded mice. From the extract, three new 3-ethyl-4-phenyl-3,4-dihydroisocoumarins, 1'S-dihydrophayomphenol A(2) (1) and phayomphenols B(1) (2) and B(2) (3), were isolated together with 24 known compounds including 20 stilbenoids and oligostilbenoids. The structures of 1-3 were determined on the basis of their spectroscopic properties as well as of chemical evidences. Among the isolates, (-)-hopeaphenol (6), hemsleyanol D (8), (+)-α-viniferin (15), and (-)-balanocarpol (18) showed inhibitory activity against plasma glucose elevation in sucrose-loaded rats at doses of 100-200mg/kg, p.o. To clarify the mode of action of the antihyperglycemic property, effects of these oligostilbenoids on gastric emptying in mice, those on glucose uptake in isolated intestinal tissues as well as inhibitory activities against rat intestinal α-glucosidase and rat lens aldose reductase were examined.
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Affiliation(s)
- Toshio Morikawa
- Pharmaceutical Research and Technology Institute, Kinki University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan
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7
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Matsuda H, Nakamura S, Iwami J, Li X, Pongpiriyadacha Y, Nakai M, Kubo M, Fukuyama Y, Yoshikawa M. Invasion inhibitors of human fibrosarcoma HT 1080 cells from the rhizomes of Zingiber cassumunar: structures of phenylbutanoids, cassumunols. Chem Pharm Bull (Tokyo) 2011; 59:365-70. [PMID: 21372419 DOI: 10.1248/cpb.59.365] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The methanolic extract and its EtOAc-soluble fraction from the rhizomes of Zingiber cassumunar inhibited invasion of human fibrosarcoma HT 1080 cells. From the EtOAc-soluble fraction, eight new phenylbutanoids, cassumunols A-H, were isolated together with 30 known constituents. The structures of new phenylbutanoids were elucidated on the basis of chemical and physicochemical evidence. Principal constituents were examined the inhibitory effects on the invasion of HT 1080 cells. Among them, phlain I and III, (E)-1-(3,4-dimethoxyphenyl)buta-1,3-diene, (E)-1-(2,4,5-trimethoxyphenyl)buta-1,3-diene, and (-)-β-sesquiphellandrene showed anti-invasion effects. Interestingly, (E)-1-(2,4,5-trimethoxyphenyl)buta-1,3-diene [inhibition (%) 46.8 ± 7.2 (p<0.05) at 30 µM] significantly inhibited the invasion, and only a weak cytotoxic effect was observed.
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Affiliation(s)
- Nigel C Veitch
- Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey TW93AB, UK.
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Cong H, Becker CF, Elliott SJ, Grinstaff MW, Porco JA. Silver nanoparticle-catalyzed Diels-Alder cycloadditions of 2'-hydroxychalcones. J Am Chem Soc 2010; 132:7514-8. [PMID: 20443601 DOI: 10.1021/ja102482b] [Citation(s) in RCA: 118] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Metal nanoparticles are currently being employed as catalysts for a number of classical chemical transformations. In contrast, identification of novel reactions of nanoparticles, especially toward the synthesis of complex natural products and derivatives, is highly underdeveloped and represents a bourgeoning area in chemical synthesis. Herein, we report silica-supported silver nanoparticles as solid, recyclable catalysts for Diels-Alder cycloadditions of 2'-hydroxychalcones and dienes in high yield and turnover number. The use of silver nanoparticle catalysts is further demonstrated by the total synthesis of the cytotoxic natural product panduratin A employing a highly electron-rich dienophile and Lewis acid sensitive diene.
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Affiliation(s)
- Huan Cong
- Department of Chemistry and Center for Chemical Methodology and Library Development, Boston University, Boston, Massachusetts 02215, USA
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10
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Bañuelos P, García JM, Gómez-Bengoa E, Herrero A, Odriozola JM, Oiarbide M, Palomo C, Razkin J. (1R)-(+)-Camphor and Acetone Derived α′-Hydroxy Enones in Asymmetric Diels−Alder Reaction: Catalytic Activation by Lewis and Brønsted Acids, Substrate Scope, Applications in Syntheses, and Mechanistic Studies. J Org Chem 2010; 75:1458-73. [DOI: 10.1021/jo9023039] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Patricia Bañuelos
- Departamento de Química Aplicada, Universidad Pública de Navarra, Campus de Arrosadía, 31006 Pamplona, Spain
| | - Jesús M. García
- Departamento de Química Aplicada, Universidad Pública de Navarra, Campus de Arrosadía, 31006 Pamplona, Spain
| | - Enrique Gómez-Bengoa
- Contribution from Departamento de Química Orgánica I, Facultad de Química, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain
| | - Ada Herrero
- Departamento de Química Aplicada, Universidad Pública de Navarra, Campus de Arrosadía, 31006 Pamplona, Spain
| | - José M. Odriozola
- Departamento de Química Aplicada, Universidad Pública de Navarra, Campus de Arrosadía, 31006 Pamplona, Spain
| | - Mikel Oiarbide
- Contribution from Departamento de Química Orgánica I, Facultad de Química, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain
| | - Claudio Palomo
- Contribution from Departamento de Química Orgánica I, Facultad de Química, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain
| | - Jesús Razkin
- Departamento de Química Aplicada, Universidad Pública de Navarra, Campus de Arrosadía, 31006 Pamplona, Spain
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Morikawa T, Yamaguchi I, Matsuda H, Yoshikawa M. A new amide, piperchabamide F, and two new phenylpropanoid glycosides, piperchabaosides A and B, from the fruit of Piper chaba. Chem Pharm Bull (Tokyo) 2010; 57:1292-5. [PMID: 19881285 DOI: 10.1248/cpb.57.1292] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A new amide, piperchabamide F (1), and two new phenylpropanoid glycosides, piperchabaosides A (2) and B (3), were isolated from 80% aqueous acetone extract from fruit of Piper chaba. Their stereostructures were elucidated on the basis of chemical and physicochemical evidence.
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Affiliation(s)
- Toshio Morikawa
- Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8412, Japan
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12
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Nakamura S, Iwami J, Matsuda H, Wakayama H, Pongpiriyadacha Y, Yoshikawa M. Structures of new phenylbutanoids and nitric oxide production inhibitors from the rhizomes of Zingiber cassumunar. Chem Pharm Bull (Tokyo) 2010; 57:1267-72. [PMID: 19881279 DOI: 10.1248/cpb.57.1267] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The methanolic (MeOH) extract from the rhizomes of Zingiber cassumunar showed nitric oxide (NO) production inhibitory effects induced by lipopolysaccharide (LPS) in mouse peritoneal macrophages. From the MeOH extract, six new phenylbutanoids, phlains I-VI, were isolated together with 16 known constituents. The structures of new phenylbutanoids were determined on the basis of physicochemical and chemical evidence. In addition, the inhibitory effects of the principal constituents on the NO production were examined. Among them, phlain III (IC50=24 microM), (E)-1-(3,4-dimethoxyphenyl)buta-1,3-diene (69 microM), (E)-1-(2,4,5-trimethoxyphenyl)buta-1,3-diene (83 microM), and cassumunaquinone 1 (47 microM) were found to show the inhibitory effects.
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Affiliation(s)
- Seikou Nakamura
- Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8412, Japan
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13
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Morikawa T, Xie Y, Ninomiya K, Okamoto M, Muraoka O, Yuan D, Yoshikawa M, Hayakawa T. Inhibitory Effects of Acylated Acyclic Sesquiterpene Oligoglycosides from the Pericarps of Sapindus rarak on Tumor Necrosis Factor-.ALPHA.-Induced Cytotoxicity. Chem Pharm Bull (Tokyo) 2010; 58:1276-80. [DOI: 10.1248/cpb.58.1276] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Toshio Morikawa
- Pharmaceutical Research and Technology Institute, Kinki University
| | - Yuanyuan Xie
- Pharmaceutical Research and Technology Institute, Kinki University
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University
| | | | - Masaki Okamoto
- Pharmaceutical Research and Technology Institute, Kinki University
| | - Osamu Muraoka
- Pharmaceutical Research and Technology Institute, Kinki University
| | - Dan Yuan
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University
| | - Masayuki Yoshikawa
- Pharmaceutical Research and Technology Institute, Kinki University
- Kyoto Pharmaceutical University
| | - Takao Hayakawa
- Pharmaceutical Research and Technology Institute, Kinki University
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14
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Morikawa T, Pan Y, Ninomiya K, Imura K, Yuan D, Yoshikawa M, Hayakawa T, Muraoka O. Iridoid and Acyclic Monoterpene Glycosides, Kankanosides L, M, N, O, and P from Cistanche tubulosa. Chem Pharm Bull (Tokyo) 2010; 58:1403-7. [DOI: 10.1248/cpb.58.1403] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Toshio Morikawa
- Pharmaceutical Research and Technology Institute, Kinki University
| | - Yingni Pan
- Pharmaceutical Research and Technology Institute, Kinki University
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University
| | | | - Katsuya Imura
- Pharmaceutical Research and Technology Institute, Kinki University
| | - Dan Yuan
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University
| | - Masayuki Yoshikawa
- Pharmaceutical Research and Technology Institute, Kinki University
- Kyoto Pharmaceutical University
| | - Takao Hayakawa
- Pharmaceutical Research and Technology Institute, Kinki University
| | - Osamu Muraoka
- Pharmaceutical Research and Technology Institute, Kinki University
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Asao Y, Morikawa T, Xie Y, Okamoto M, Hamao M, Matsuda H, Muraoka O, Yuan D, Yoshikawa M. Structures of Acetylated Oleanane-Type Triterpene Saponins, Rarasaponins IV, V, and VI, and Anti-hyperlipidemic Constituents from the Pericarps of Sapindus rarak. Chem Pharm Bull (Tokyo) 2009; 57:198-203. [DOI: 10.1248/cpb.57.198] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Toshio Morikawa
- Pharmaceutical Research and Technology Institute, Kinki University
| | - Yuanyuan Xie
- Pharmaceutical Research and Technology Institute, Kinki University
- School of Traditional Medicine, Shenyang Pharmaceutical University
| | - Masaki Okamoto
- Pharmaceutical Research and Technology Institute, Kinki University
| | | | | | - Osamu Muraoka
- Pharmaceutical Research and Technology Institute, Kinki University
| | - Dan Yuan
- School of Traditional Medicine, Shenyang Pharmaceutical University
| | - Masayuki Yoshikawa
- Kyoto Pharmaceutical University
- Pharmaceutical Research and Technology Institute, Kinki University
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Matsuda H, Asao Y, Nakamura S, Hamao M, Sugimoto S, Hongo M, Pongpiriyadacha Y, Yoshikawa M. Antidiabetogenic Constituents from the Thai Traditional Medicine Cotylelobium melanoxylon. Chem Pharm Bull (Tokyo) 2009; 57:487-94. [DOI: 10.1248/cpb.57.487] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Morikawa T, Funakoshi K, Ninomiya K, Yasuda D, Miyagawa K, Matsuda H, Yoshikawa M. Medicinal Foodstuffs. XXXIV. Structures of New Prenylchalcones and Prenylflavanones with TNF-.ALPHA. and Aminopeptidase N Inhibitory Activities from Boesenbergia rotunda. Chem Pharm Bull (Tokyo) 2008; 56:956-62. [DOI: 10.1248/cpb.56.956] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Toshio Morikawa
- Pharmaceutical Research and Technology Institute, Kinki University
| | | | | | | | | | | | - Masayuki Yoshikawa
- Pharmaceutical Research and Technology Institute, Kinki University
- Kyoto Pharmaceutical University
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