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Mineno T, Tsukagoshi R, Iijima T, Watanabe K, Miyashita H, Yoshimitsu H. Reductive coupling reaction of aldehydes using indium(III) triflate as the catalyst. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.05.079] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Akiyama K, Mineno T, Okawa M, Kinjo J, Miyashita H, Yoshimitsu H, Nohara T, Ono M. Three acylated glycosidic acid methyl esters and two acylated methyl glycosides generated from the convolvulin fraction of seeds of Quamoclit pennata by treatment with indium(III) chloride in methanol. Chem Pharm Bull (Tokyo) 2014; 61:952-61. [PMID: 23995359 DOI: 10.1248/cpb.c13-00355] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Treatment of the ether-insoluble resin glycoside (convolvulin) fraction from seeds of Quamoclit pennata (Convolvulaceae) with indium(III) chloride in methanol provided three oligoglycosides of hydroxy fatty acid (glycosidic acid) methyl esters and two methyl glycosides, which were partially acylated by a glycosidic acid, 7S-hydroxydecanoic acid 7-O-β-D-quinovopyranoside (quamoclinic acid B) and/or two organic acids, (E)-2-methylbut-2-enoic (tiglic) acid and/or 3R-hydroxy-2R-methylbutyric (nilic) acid. Their structures were elucidated on the basis of spectroscopic data and chemical conversions.
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Mineno T, Shinada M, Watanabe K, Yoshimitsu H, Miyashita H, Kansui H. Highly-Efficient Conversion of Primary Amides to Nitriles Using Indium(III) Triflate as the Catalyst. ACTA ACUST UNITED AC 2014. [DOI: 10.4236/ijoc.2014.41001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Ono M, Takigawa A, Kanemaru Y, Kawakami G, Kabata K, Okawa M, Kinjo J, Yokomizo K, Yoshimitsu H, Nohara T. Calysolins V–IX, Resin Glycosides from Calystegia soldanella and Their Antiviral Activity toward Herpes. Chem Pharm Bull (Tokyo) 2014; 62:97-105. [DOI: 10.1248/cpb.c13-00610] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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30
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Mineno T, Sakai M, Ubukata A, Nakahara K, Yoshimitsu H, Kansui H. The effect of indium(III) triflate in oxone-mediated oxidative methyl esterification of aldehydes. Chem Pharm Bull (Tokyo) 2013; 61:870-2. [PMID: 23902869 DOI: 10.1248/cpb.c13-00072] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
An oxidative methyl esterification of aldehydes was effectively achieved. The trivalent indium reagent, indium(III) triflate, was revealed to accelerate the reactions in many cases. Aromatic aldehydes with various substituents were subjected to this method, and each produced the corresponding methyl esters in good to excellent yields within a relatively short reaction time.
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Ono M, Takatsu Y, Ochiai T, Yasuda S, Nishida Y, Tanaka T, Okawa M, Kinjo J, Yoshimitsu H, Nohara T. Two new nortriterpenoid glycosides and a new phenylpropanoid glycoside from the bulbs of Scilla scilloides. Chem Pharm Bull (Tokyo) 2013; 60:1314-9. [PMID: 23036971 DOI: 10.1248/cpb.c12-00457] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Two new norlanostane-type triterpenoid glycosides and a new phenylpropanoid glycoside were isolated from the bulbs of Scilla scilloides DRUCE (Liliaceae), along with two known alkaloids. Their chemical structures were determined on the basis of spectroscopic data as well as chemical evidence.
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Ono M, Ochiai T, Yasuda S, Nishida Y, Tanaka T, Okawa M, Kinjo J, Yoshimitsu H, Nohara T. Five New Nortriterpenoid Glycosides from the Bulbs of Scilla scilloides. Chem Pharm Bull (Tokyo) 2013; 61:592-8. [DOI: 10.1248/cpb.c13-00116] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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33
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Ono M, Takaki Y, Takatsuji M, Akiyama K, Okawa M, Kinjo J, Miyashita H, Yoshimitsu H, Nohara T. Three new resin glycosides and a new tetrahydropyran derivative from the seeds of Quamoclit pennata. Chem Pharm Bull (Tokyo) 2012; 60:1083-7. [PMID: 22863715 DOI: 10.1248/cpb.c12-00334] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Three new resin glycosides, quamoclins V (1), VI (2), and VII (3) and a new tetrahydropyran derivative, quamopyran (4), were isolated from the seeds of Quamoclit pennata BOJER (Convolvulaceae). The chemical structures of these compounds were determined primarily on the basis of spectroscopic data. The carboxyl group of the aglycone, 11S-convolvulinolic acid, of 1 and 2 was linked intermoleculary with a hydroxy group of the sugar moiety to form a macrocyclic ester structure, as in already known jalapins, and 3 was an acylated glycosidic acid methyl ester. All of the sugar moieties of 1-3 were acylated by one 2S-methylbutyric acid. Compound 4 was a diketone having a tetrahydropyran ring.
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Ono M, Furusawa C, Matsumura K, Noguchi S, Yasuda S, Okawa M, Kinjo J, Eto M, Yamaguchi K, Yoshimitsu H, Nohara T. A new diterpenoid from the leaves of Clerodendron trichotomum. J Nat Med 2012; 67:404-9. [PMID: 22825680 DOI: 10.1007/s11418-012-0690-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Accepted: 06/28/2012] [Indexed: 11/28/2022]
Abstract
A new diterpenoid was isolated from the leaves of Clerodendron trichotomumThunb. (Verbenaceae) along with one each of a known diterpenoid, phenylethanoid glycoside, and sterol and two known flavonoids. Their chemical structures were characterized on the basis of spectroscopic data and X-ray analysis. In addition, their antioxidant activities were evaluated using four different analyses.
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35
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El-Aasr M, Fujiwara Y, Takeya M, Ono M, Nakano D, Okawa M, Kinjo J, Ikeda T, Miyashita H, Yoshimitsu H, Nohara T. Garlicnin A from the fraction regulating macrophage activation of Allium sativum. Chem Pharm Bull (Tokyo) 2012; 59:1340-3. [PMID: 22041068 DOI: 10.1248/cpb.59.1340] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Garlicnin A (1), a new stable, sulfur-containing compound isolated from a fraction of the acetone extracts of Allium sativum L. garlic bulbs, showed the potential to suppress tumor cell proliferation by inhibiting the polarization of M2 alternatively activated macrophages, and its structure was characterized as 3,4-dimethyl-5-(4,5-dithia-1E,7-octadiene)-tetrahydrothiophene-2-sulfoxide-S-oxide, on the basis of the results of spectroscopic analysis results.
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36
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Ono M, Toyohisa D, Morishita T, Horita H, Yasuda S, Nishida Y, Tanaka T, Okawa M, Kinjo J, Yoshimitsu H, Nohara T. Three new nortriterpene glycosides and two new triterpene glycosides from the bulbs of Scilla scilloides. Chem Pharm Bull (Tokyo) 2012; 59:1348-54. [PMID: 22041070 DOI: 10.1248/cpb.59.1348] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Three new norlanostane-type triterpene glycosides, scillanostasides A, B, and C, and two new lanostane-type triterpene glycosides, scillanostasides D and E, were isolated from the bulbs of Scilla scilloides Druce (Liliaceae) along with one known norlanostane-type triterpene heptaglycoside, scillascilloside G-1. Their chemical structures were determined on the basis of spectroscopic data as well as chemical evidence.
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37
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Takigawa A, Muto H, Kabata K, Okawa M, Kinjo J, Yoshimitsu H, Nohara T, Ono M. Calysolins I-IV, resin glycosides from Calystegia soldanella. JOURNAL OF NATURAL PRODUCTS 2011; 74:2414-2419. [PMID: 21992192 DOI: 10.1021/np2006378] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Four new resin glycosides having intramolecular cyclic ester structures (jalapins), named calysolins I-IV (1-4), were isolated from the methanol extract of leaves, stems, and roots of Calystegia soldanella , along with one known jalapin (5) derivative. The structures of 1-4 were determined on the basis of spectroscopic data and chemical evidence. They fall into two types, one having a 22-membered ring (1 and 4) and the other with a 27-membered ring (2 and 3). The sugar moieties of 1-4 were partially acylated by some organic acids. Compound 4 is the first example of a hexaglycoside of jalapin.
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Ono M, Eguchi K, Konoshita M, Furusawa C, Sakamoto J, Yasuda S, Ikeda T, Okawa M, Kinjo J, Yoshimitsu H, Nohara T. A new diterpenoid glucoside and two new diterpenoids from the fruit of Vitex agnus-castus. Chem Pharm Bull (Tokyo) 2011; 59:392-6. [PMID: 21372425 DOI: 10.1248/cpb.59.392] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A new labdane-type diterpenoid glucoside and two new labdane-type diterpenoids were isolated from the fruit (chasteberry) of Vitex agnus-castus L. (Verbenaceae) along with 14 known compounds comprising seven labdane-type diterpenoids, one halimane-type diterpenoid, two oleanane-type triterpenoids, two ursane-type triterpenoids, one aromadendrane-type sesquiterpenoid, and one flavonoid. Their structures were characterized on the basis of spectroscopic data as well as chemical evidence. Furthermore, the antioxidative activities of the flavonoid were evaluated using five different analyses.
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Nishida M, Yoshimitsu H. Six New Cycloartane Glycosides from Cimicifuga Rhizome. Chem Pharm Bull (Tokyo) 2011; 59:1243-9. [DOI: 10.1248/cpb.59.1243] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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40
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Takigawa A, Setoguchi H, Okawa M, Kinjo J, Miyashita H, Yokomizo K, Yoshimitsu H, Nohara T, Ono M. Identification and Characterization of Component Organic and Glycosidic Acids of Crude Resin Glycoside Fraction from Calystegia soldanella. Chem Pharm Bull (Tokyo) 2011; 59:1163-8. [DOI: 10.1248/cpb.59.1163] [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]
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41
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Ono M, Furusawa C, Ozono T, Oda K, Yasuda S, Okawa M, Kinjo J, Ikeda T, Miyashita H, Yoshimitsu H, Nohara T. Four New Iridoid Glucosides from Ajuga reptans. Chem Pharm Bull (Tokyo) 2011; 59:1065-8. [DOI: 10.1248/cpb.59.1065] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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42
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Ono M, Takigawa A, Mineno T, Yoshimitsu H, Nohara T, Ikeda T, Fukuda-Teramachi E, Noda N, Miyahara K. Acylated glycosides of hydroxy fatty acid methyl esters generated from the crude resin glycoside (pharbitin) of seeds of Pharbitis nil by treatment with indium(III) chloride in methanol. JOURNAL OF NATURAL PRODUCTS 2010; 73:1846-1852. [PMID: 20939542 DOI: 10.1021/np1004888] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Treatment of the crude ether-insoluble resin glycoside (convolvulin) from seeds of Pharbitis nil (Pharbitis Semen), called pharbitin, with indium(III) chloride in methanol provided seven oligoglycosides of hydroxy fatty acid methyl esters partially acylated by 2-methyl-3-hydroxybutyric (nilic) and 2S-methylbutyric acids. Their structures were elucidated on the basis of NMR and MS data and chemical conversions.
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Ono M, Kishida M, Ikegami Y, Takaki Y, Okawa M, Kinjo J, Yoshimitsu H, Nohara T, Miyahara K. Components of convolvulin from Quamoclit × multifida. J Nat Med 2010; 65:95-102. [DOI: 10.1007/s11418-010-0464-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2010] [Accepted: 08/04/2010] [Indexed: 11/29/2022]
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44
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El-Aasr M, Fujiwara Y, Takeya M, Ikeda T, Tsukamoto S, Ono M, Nakano D, Okawa M, Kinjo J, Yoshimitsu H, Nohara T. Onionin A from Allium cepa inhibits macrophage activation. JOURNAL OF NATURAL PRODUCTS 2010; 73:1306-1308. [PMID: 20597533 DOI: 10.1021/np100105u] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Onionin A (1), a new, stable, sulfur-containing compound, was isolated from acetone extracts of bulbs of onion (Allium cepa), and its structure was characterized as 3,4-dimethyl-5-(1E-propenyl)-tetrahydrothiophen-2-sulfoxide-S-oxide, on the basis of the results of spectroscopic analysis. This compound showed the potential to suppress tumor-cell proliferation by inhibiting the polarization of M2 alternatively activated macrophages.
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45
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Ono M, Shiono Y, Tanaka T, Masuoka C, Yasuda S, Ikeda T, Okawa M, Kinjo J, Yoshimitsu H, Nohara T. Three new aromatic glycosides from the ripe fruit of cherry tomato. J Nat Med 2010; 64:500-5. [PMID: 20574729 DOI: 10.1007/s11418-010-0436-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2010] [Accepted: 05/25/2010] [Indexed: 10/19/2022]
Abstract
Three new aromatic glycosides were isolated from the ripe fruit of cherry tomato [Lycopersicon esculentum var. cerasiforme (Dunal) Alef. (Solanaceae)] along with six known aromatic glycosides and one known steroidal alkaloid glycoside. Their chemical structures were determined on the basis of spectroscopic data as well as chemical evidence.
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Yoshimitsu H, Miyashita H, Nishida M, Mineno T, Nohara T. Dolabellane Diterpene and Three Cycloartane Glycosides from Thalictrum squarrosum. Chem Pharm Bull (Tokyo) 2010; 58:1043-6. [DOI: 10.1248/cpb.58.1043] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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47
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Miyashita H, Nishida M, Okawa M, Nohara T, Yoshimitsu H. Four New ent-Kaurane Diterpenoids from the Fruits of Annona cherimola. Chem Pharm Bull (Tokyo) 2010; 58:765-8. [DOI: 10.1248/cpb.58.765] [Citation(s) in RCA: 14] [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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48
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Ono M, Nagasawa Y, Ikeda T, Tsuchihashi R, Okawa M, Kinjo J, Yoshimitsu H, Nohara T. Three new diterpenoids from the fruit of Vitex agnus-castus. Chem Pharm Bull (Tokyo) 2009; 57:1132-5. [PMID: 19801874 DOI: 10.1248/cpb.57.1132] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Three new labdane-type diterpenoids, viteagnusins F, G, and H, were isolated from the hexane extract of fruit (chasteberry) of Vitex agnus-castus L. (Verbenaceae) along with seven known compounds including four labdane-type diterpenoids, one norlabdane-type diterpenoid, one aromadendrane-type sesquiterpenoid, and one flavonoid. The chemical structures of the three new labdane-type diterpenoids were determined on the basis of spectroscopic data as well as chemical evidence.
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Lee JH, El-Aasr M, Ikeda T, Oda K, Miyashita H, Yoshimitsu H, Okawa M, Kinjo J, Nohara T. Two new acyclic diterpene glycosides from fruits of Habanero, Capsicum chinense. Chem Pharm Bull (Tokyo) 2009; 57:730-3. [PMID: 19571420 DOI: 10.1248/cpb.57.730] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Four acyclic diterpene glycosides were extracted from Habanero, the fruits of Capsicum chinense JACQ., which is known as one of the hottest peppers in existence. Two of these glycosides were identified as capsianoside XIII and capsianoside XV. The other two were new ones and were characterized as 3-O-beta-D-glucopyranosyl-(1-->4)-beta-D-glucopyranosyl 17,19-dihydroxy-6E,10E,14Z-(3S)-geranyllinalool 17-O-beta-D-glucopyranosyl-(1-->4)-alpha-L-rhamnopyranosyl-[alpha-L-rhamnopyranosyl-(1-->6)]-beta-D-glucopyranoside and 3-O-beta-D-glucopyranosyl-(1-->4)-beta-D-glucopyranosyl 6E,10E,14Z-(3S)-17-hydroxy-geranyllinalool 17-O-[3-O-beta-D-glucopyranosyl-(1-->4)-beta-D-glucopyranosyl 6'E,10'E,14'Z-(3'S)-13'R,19'-dihydroxy-geranyllinalool-16'-oyl (16'-->2)-[alpha-L-rhamnopyranosyl-(1-->3)]-alpha-L-rhamnopyranosyl-(1-->4)-[alpha-L-rhamnopyranosyl-(1-->6)]-beta-D-glucopyranoside.
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Ono M, Yamasaki T, Konoshita M, Ikeda T, Okawa M, Kinjo J, Yoshimitsu H, Nohara T. Five new diterpenoids, viteagnusins A--E, from the fruit of Vitex agnus-castus. Chem Pharm Bull (Tokyo) 2009; 56:1621-4. [PMID: 18981619 DOI: 10.1248/cpb.56.1621] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Two new halimane-type diterpenoids, viteagnusins A and B, and three new labdane-type diterpenoids, viteagnusins C, D, and E, were isolated from the fruit of Vitex agnus-castus L. (Chasteberry, Verbenaceae) along with two known diterpenoids. Their chemical structures were determined on the basis of spectroscopic data.
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