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Yoshio Takeda

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TOP 3
Yuka Uemura; Masatoshi Kawahata; Katsuyoshi Matsunami; Hideaki Otsuka; Sachiko Sugimoto; Yoshio Takeda; Kentaro Yamaguchi
Microtropins A-I: 6'-O-(2″S,3″R)-2″-ethyl-2″,3″-dihydroxybutyrates of aliphatic alcohol β-D-glucopyranosides from the branches of Microtropis japonica.
Susumu Kawakami; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Yoshio Takeda; Hiroki Toyoda; Liva Harinantenaina; Masatoshi Kawahata; Kentaro Yamaguchi
Eight new diterpenoids and two new nor-diterpenoids from the stems of Croton cascarilloides.
Ayumi Iha; Masatoshi Kawahata; Katsuyoshi Matsunami; Hideaki Otsuka; Kentaro Yamaguchi; Yoshio Takeda
Three new aliphatic glycosides from the leaves of Antidesma japonicum Sieb. et Zucc.

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All Publications

2013: Yuka Uemura; Masatoshi Kawahata; Katsuyoshi Matsunami; Hideaki Otsuka; Sachiko Sugimoto; Yoshio Takeda; Kentaro Yamaguchi
Microtropins A-I: 6'-O-(2″S,3″R)-2″-ethyl-2″,3″-dihydroxybutyrates of aliphatic alcohol β-D-glucopyranosides from the branches of Microtropis japonica.
Phytochemistry 2013;87():140-7.
2013: Susumu Kawakami; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Yoshio Takeda; Hiroki Toyoda; Liva Harinantenaina; Masatoshi Kawahata; Kentaro Yamaguchi
Eight new diterpenoids and two new nor-diterpenoids from the stems of Croton cascarilloides.
Chemical & pharmaceutical bulletin 2013;61(4):411-8.
2012: Ayumi Iha; Masatoshi Kawahata; Katsuyoshi Matsunami; Hideaki Otsuka; Kentaro Yamaguchi; Yoshio Takeda
Three new aliphatic glycosides from the leaves of Antidesma japonicum Sieb. et Zucc.
Journal of natural medicines 2012;66(4):664-70.
2012: Ayano Matsushige; Shigeru Ohta; Hideaki Otsuka; Yaichiro Kotake; Katsuyoshi Matsunami; Yoshio Takeda
Annonamine, a new aporphine alkaloid from the leaves of Annona muricata.
Chemical & pharmaceutical bulletin 2012;60(2):257-9.
2012: Madoka Ochi; Hideaki Otsuka; Katsuyoshi Matsunami; Yoshio Takeda
A new iridoid glycoside and NO production inhibitory activity of compounds isolated from Russelia equisetiformis.
Journal of natural medicines 2012;66(1):227-32.
2011: Yoshiko Tsuboi; Takashi Doi; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Yoshio Takeda
Gallates of isoorientin and (2S)-1,2-propanediol glucoside from the leaves of Schoepfia jasminodora.
Journal of natural medicines 2011;65(3-4):617-22.
2011: Aya Hisaeda; Katsuyoshi Matsunami; Hideaki Otsuka; Yoshio Takeda
Flavonol glycosides from the leaves of Indigofera zollingeriana.
Journal of natural medicines 2011;65(2):360-3.
2011: Wen-Hu Cai; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Yoshio Takeda
A glycerol α-D-glucuronide and a megastigmane glycoside from the leaves of Guettarda speciosa L.
Journal of natural medicines 2011;65(2):364-9.
2011: Katsuyoshi Matsunami; Hideaki Otsuka; Yoshio Takeda
Myrseguinosides A-E, five new glycosides from the fruits of Myrsine seguinii.
Chemical & pharmaceutical bulletin 2011;59(10):1274-80.
2011: Zhimin Zhao; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Yoshio Takeda
Tareciliosides H-M: further cycloartane glycosides from leaves of Tarenna gracilipes.
Chemical & pharmaceutical bulletin 2011;59(7):902-5.
2011: Junko Shitamoto; Sachiko Sugimoto; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Yoshio Takeda
Tricalysionoside A, a megastigmane gentiobioside, sulfatricalysines A-F, and tricalysiosides X-Z, ent-kaurane glucosides, from the leaves of Tricalysia dubia.
Chemical & pharmaceutical bulletin 2011;59(1):72-7.
2011: Susumu Kawakami; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Yoshio Takeda
Crotonionosides A-G: megastigmane glycosides from leaves of Croton cascarilloides Räuschel.
Phytochemistry 2011;72(1):147-53.
2011: Yuka Koyama; Miwako Yamamoto; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Yoshio Takeda
Prenylated flavonoid glucoside and two aliphatic alcohol glycosides from the leaves of Euodia meliaefolia (Hance) Benth.
Journal of natural medicines 2011;65(1):212-6.
2010: Katsuyoshi Matsunami; Hideaki Otsuka; Yoshio Takeda; Toshio Miyase
Reinvestigation of the absolute stereochemistry of megastigmane glucoside, icariside B(5).
Chemical & pharmaceutical bulletin 2010;58(10):1399-402.
2010: Zhimin Zhao; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Yoshio Takeda; Masatoshi Kawahata; Kentaro Yamaguchi
Schefflerins A-G, new triterpene glucosides from the leaves of Schefflera arboricola.
Chemical & pharmaceutical bulletin 2010;58(10):1343-8.
2010: Katsuyoshi Matsunami; Jiro Nagashima; Sachiko Sugimoto; Hideaki Otsuka; Yoshio Takeda; Duangporn Lhieochaiphant; Sorasak Lhieochaiphant
Megastigmane glucosides and an unusual monoterpene from the leaves of Cananga odorata var. odorata, and absolute structures of megastigmane glucosides isolated from C. odorata var. odorata and Breynia officinalis.
Journal of natural medicines 2010;64(4):460-7.
2010: Yukiko Yamashita; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Yoshio Takeda
5-Alkylresorcinol glucosides from the leaves of Grevillea robusta Allan Cunningham.
Journal of natural medicines 2010;64(4):474-7.
2010: Junko Shitamoto; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Yoshio Takeda
Crotalionosides A-C, three new megastigmane glucosides, two new pterocarpan glucosides and a chalcone C-glucoside from the whole plants of Crotalaria zanzibarica.
Chemical & pharmaceutical bulletin 2010;58(8):1026-32.
2010: Yuka Koyama; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Yoshio Takeda
Microtropiosides A-F: ent-Labdane diterpenoid glucosides from the leaves of Microtropis japonica (Celastraceae).
Phytochemistry 2010;71(5-6):675-81.
2010: Katsuyoshi Matsunami; Hideaki Otsuka; Yoshio Takeda
Structural revisions of blumenol C glucoside and byzantionoside B.
Chemical & pharmaceutical bulletin 2010;58(3):438-41.
2010: Junko Shitamoto; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Yoshio Takeda
Elaeocarpionoside, a megastigmane glucoside from the leaves of Elaeocarpus japonicus Sieb. et Zucc.
Journal of natural medicines 2010;64(1):104-8.
2010: Rene Angelo Macahig; Liva Harinantenaina; Katsuyoshi Matsunami; Hideaki Otsuka; Yoshio Takeda; Takakazu Shinzato
Secoiridoid and iridoid glucosides from the leaves of Fraxinus griffithii.
Journal of natural medicines 2010;64(1):1-8.
2009: Wen-Hu Cai; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Yoshio Takeda
Lignan and neolignan glucosides, and tachioside 2'-O-4''-O-methylgallate from the leaves of Glochidion rubrum.
Journal of natural medicines 2009;63(4):408-14.
2009: Katsuyoshi Matsunami; Hideaki Otsuka; Kazunari Kondo; Takakazu Shinzato; Masatoshi Kawahata; Kentaro Yamaguchi; Yoshio Takeda
Absolute configuration of (+)-pinoresinol 4-O-[6''-O-galloyl]-beta-D-glucopyranoside, macarangiosides E, and F isolated from the leaves of Macaranga tanarius.
Phytochemistry 2009;70(10):1277-85.
2009: Toshiya Masuda; Jun Akiyama; Yoshio Takeda; Tomomi Maekawa; Yoshiaki Sone
Identification of the antioxidation reaction products from a sinapic ester in a lipid oxidation system.
Bioscience, biotechnology, and biochemistry 2009;73(3):736-9.
2008: Shiori Kawakami; Liva Harinantenaina; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Yoshio Takeda
Macaflavanones A-G, prenylated flavanones from the leaves of Macaranga tanarius.
Journal of natural products 2008;71(11):1872-6.
2008: Yukiko Yamashita; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Yoshio Takeda
Grevillosides A-F: glucosides of 5-alkylresorcinol derivatives from leaves of Grevillea robusta.
Phytochemistry 2008;69(15):2749-52.
2008: Moe Kanemoto; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Choken Ishigaki; Yoshio Takeda
Chlorine-containing iridoid and iridoid glucoside, and other glucosides from leaves of Myoporum bontioides.
Phytochemistry 2008;69(13):2517-22.
2008: Yoshio Takeda; Kaori Yano; Hisako Ayabe; Toshiya Masuda; Hideaki Otsuka; Etsuko Sueyoshi; Takakazu Shinzato; Mitsunori Aramoto
Glycosidic constituents of the leaves of an Okinawan Leguminosae plant, Derris trifoliata Lour.
Journal of natural medicines 2008;62(4):476-8.
2008: Zhimin Zhao; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Yoshio Takeda
Tareciliosides A--G: Cycloartane glycosides from leaves of Tarenna gracilipes (HAY.) OHWI.
Chemical & pharmaceutical bulletin 2008;56(8):1153-8.
2008: Toshiya Masuda; Kazuki Yamada; Jun Akiyama; Tatsushi Someya; Yuka Odaka; Yoshio Takeda; Motoo Tori; Katsuyuki Nakashima; Tomomi Maekawa; Yoshiaki Sone
Antioxidation mechanism studies of caffeic acid: identification of antioxidation products of methyl caffeate from lipid oxidation.
Journal of agricultural and food chemistry 2008;56(14):5947-52.
2008: Naoko Tamaki; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Mitsunori Aramoto; Yoshio Takeda
Rearranged ent-kauranes from the stems of Tricalysia dubia and their biological activities.
Journal of natural medicines 2008;62(3):314-20.
2008: Miwako Yamamoto; Takeyuki Akita; Yuka Koyama; Etsuko Sueyoshi; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Atsushi Takashima; Mitsunori Aramoto; Yoshio Takeda
Euodionosides A-G: megastigmane glucosides from leaves of Euodia meliaefolia.
Phytochemistry 2008;69(7):1586-96.
2008: Yoshio Takeda; Maki Tomonari; Shihoko Arimoto; Toshiya Masuda; Hideaki Otsuka; Katsuyoshi Matsunami; Gisho Honda; Michiho Ito; Yoshihisa Takaishi; Fumiyuki Kiuchi; Olimjon K Khodzhimatov; Ozodbek Ashurmetov
A new phenolic glucoside from an Uzbek medicinal plant, Origanum tyttanthum.
Journal of natural medicines 2008;62(1):71-4.
2007: Hideaki Otsuka; Junko Shitamoto; Dong-Hui He; Katsuyoshi Matsunami; Takakazu Shinzato; Mitsunori Aramoto; Yoshio Takeda; Tripetch Kanchanapoom
Tricalysiosides P-U: Ent-kaurane glucosides and a labdane glucoside from leaves of Tricalysia dubia OHWI.
Chemical & pharmaceutical bulletin 2007;55(11):1600-5.
2007: Toshiya Masuda; Nao Fujita; Yuka Odaka; Yoshio Takeda; Shigetomo Yonemori; Katsuo Nakamoto; Hideki Kuninaga
Tyrosinase inhibitory activity of ethanol extracts from medicinal and edible plants cultivated in okinawa and identification of a water-soluble inhibitor from the leaves of Nandina domestica.
Bioscience, biotechnology, and biochemistry 2007;71(9):2316-20.
2006: Ken-ichi Morimura; Asuka Gatayama; Reiki Tsukimata; Katsuyoshi Matsunami; Hideaki Otsuka; Eiji Hirata; Takakazu Shinzato; Mitsunori Aramoto; Yoshio Takeda
5-O-glucosyldihydroflavones from the leaves of Helicia cochinchinensis.
Phytochemistry 2006;67(24):2681-5.
2006: Etsuko Sueyoshi; Hui Liu; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Mitsunori Aramoto; Yoshio Takeda
Bridelionosides A-F: Megastigmane glucosides from Bridelia glauca f. balansae.
Phytochemistry 2006;67(22):2483-93.
2006: Katsuyoshi Matsunami; Ichiko Takamori; Takakazu Shinzato; Mitsunori Aramoto; Kazunari Kondo; Hideaki Otsuka; Yoshio Takeda
Radical-scavenging activities of new megastigmane glucosides from Macaranga tanarius (L.) MULL.-ARG.
Chemical & pharmaceutical bulletin 2006;54(10):1403-7.
2006: Toshiya Masuda; Kazuki Yamada; Tomomi Maekawa; Yoshio Takeda; Hidemasa Yamaguchi
Antioxidant mechanism studies on ferulic acid: identification of oxidative coupling products from methyl ferulate and linoleate.
Journal of agricultural and food chemistry 2006;54(16):6069-74.
2005: Dong-Hui He; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Mitsunori Aramoto; Masahiko Bando; Yoshio Takeda
Tricalysiosides H-O: Ent-kaurane glucosides from the leaves of Tricalysia dubia.
Phytochemistry 2005;66(24):2857-64.
2005: Toshiya Masuda; Takuya Kirikihira; Yoshio Takeda
Recovery of antioxidant activity from carnosol quinone: antioxidants obtained from a water-promoted conversion of carnosol quinone.
Journal of agricultural and food chemistry 2005;53(17):6831-4.
2005: Qian Yu; Katsuyoshi Matsunami; Hideaki Otsuka; Yoshio Takeda
Staphylionosides A-K: megastigmane glucosides from the leaves of Staphylea bumalda DC.
Chemical & pharmaceutical bulletin 2005;53(7):800-7.
2005: Yoshio Takeda; Toshiya Masuda; Hiroyuki Morikawa; Hisako Ayabe; Eiji Hirata; Takakazu Shinzato; Mitsunori Aramoto; Hideaki Otsuka
Lanceocrepidiasides A-F, glucosides of guaiane-type sesquiterpene from Crepidiastrum lanceolatum.
Phytochemistry 2005;66(6):727-32.
2005: Toshiya Masuda; Daiki Yamashita; Yoshio Takeda; Shigetomo Yonemori
Screening for tyrosinase inhibitors among extracts of seashore plants and identification of potent inhibitors from Garcinia subelliptica.
Bioscience, biotechnology, and biochemistry 2005;69(1):197-201.
2004: Naonobu Tanaka; Yoshihisa Takaishi; Yasuhiro Shikishima; Yuka Nakanishi; Kenneth F Bastow; Kuo-Hsiung Lee; Gisho Honda; Michiho Ito; Yoshio Takeda; Olimjon K Kodzhimatov; Ozodbek Ashurmetov
Prenylated benzophenones and xanthones from Hypericum scabrum.
Journal of natural products 2004;67(11):1870-5.
2004: Hiroyuki Morikawa; Ryoji Kasai; Hideaki Otsuka; Eiji Hirata; Takakazu Shinzato; Mitsunori Aramoto; Yoshio Takeda
Terpenic and phenolic glycosides from leaves of Breynia officinalis HEMSL.
Chemical & pharmaceutical bulletin 2004;52(9):1086-90.
2004: Ekrem Sezik; Erdem Yesilada; Hüsnitdin Shadidoyatov; Zeynullah Kulivey; Alim M Nigmatullaev; Hamdulla N Aripov; Yoshihisa Takaishi; Yoshio Takeda; Gisho Honda
Folk medicine in Uzbekistan. I. Toshkent, Djizzax, and Samarqand provinces.
Journal of ethnopharmacology 2004;92(2-3):197-207.
2004: Hideaki Otsuka; Yoshio Takeda; Eiji Hirata; Takakazu Shinzato; Masahiko Bando
Glochidiolide, isoglochidiolide, acuminaminoside, and glochidacuminosides A-D from the leaves of Glochidion acuminatum MUELL.
Chemical & pharmaceutical bulletin 2004;52(5):591-6.
2004: Yoshio Takeda; Hideko Shimizu; Toshiya Masuda; Eiji Hirata; Takakazu Shinzato; Masahiko Bando; Hideaki Otsuka
Lasianthionosides A-C, megastigmane glucosides from leaves of Lasianthus fordii.
Phytochemistry 2004;65(4):485-9.
2004: Yoshio Takeda; Yoshihiro Okada; Toshiya Masuda; Eiji Hirata; Takakazu Shinzato; Hideaki Otsuka
C,O-bisglycosylapigenins from the leaves of Rhamnella inaequilatera.
Phytochemistry 2004;65(4):463-8.
2003: Toshiya Masuda; Yasuo Oyama; Natsuko Yamamoto; Chisato Umebayashi; Hiromi Nakao; Yukiko Toi; Yoshio Takeda; Katsuo Nakamoto; Hideki Kuninaga; Yukari Nishizato; Akira Nonaka
Cytotoxic screening of medicinal and edible plants in Okinawa, Japan, and identification of the main toxic constituent of Rhodea japonica (Omoto).
Bioscience, biotechnology, and biochemistry 2003;67(6):1401-4.
2003: Toshiya Masuda; Yuzuru Inaba; Tomomi Maekawa; Yoshio Takeda; Hidemasa Yamaguchi; Katsuo Nakamoto; Hideki Kuninaga; Saori Nishizato; Akira Nonaka
Simple detection method of powerful antiradical compounds in the raw extract of plants and its application for the identification of antiradical plant constituents.
Journal of agricultural and food chemistry 2003;51(7):1831-8.
2003: Hideaki Otsuka; Eiji Hirata; Takakazu Shinzato; Yoshio Takeda
Stereochemistry of megastigmane glucosides from Glochidion zeylanicum and Alangium premnifolium.
Phytochemistry 2003;62(5):763-8.
2003: Hideaki Otsuka; Hidehiko Kijima; Eiji Hirata; Takakazu Shinzato; Anki Takushi; Masahiko Bando; Yoshio Takeda
Glochidionionosides A-D: megastigmane glucosides from leaves of Glochidion zeylanicum (Gaertn.) A. Juss.
Chemical & pharmaceutical bulletin 2003;51(3):286-90.
2003: Nahoko Uchiyama; Fumiyuki Kiuchi; Michiho Ito; Gisho Honda; Yoshio Takeda; Olimjon K Khodzhimatov; Ozodbek Ashurmetov
New icetexane and 20 norabietane diterpenes with trypanocidal activity from Dracocephalum komarovi.
Journal of natural products 2003;66(1):128-31.
2002: Yasuhiro Shikishima; Yoshihisa Takaishi; Gisho Honda; Michiho Ito; Yoshio Takeda; Motoo Tori; Shigeru Takaoka; Olimjon K Kodzhimatov; Ozodbek Ashurmetov
Sesquiterpenes from Ferula penninervis.
Journal of natural products 2002;65(12):1897-903.
2002: Hongquan Duan; Yoshihisa Takaishi; Motoo Tori; Shigeru Takaoka; Gisho Honda; Michiho Ito; Yoshio Takeda; Olimjon K Kodzhimatov; K Kodzhimatov; Ozodbek Ashurmetov
Polysulfide derivatives from Ferula foetida.
Journal of natural products 2002;65(11):1667-9.
2002: Toshiya Masuda; Yuzuru Inaba; Tomomi Maekawa; Yoshio Takeda; Hirotoshi Tamura; Hidemasa Yamaguchi
Recovery mechanism of the antioxidant activity from carnosic acid quinone, an oxidized sage and rosemary antioxidant.
Journal of agricultural and food chemistry 2002;50(21):5863-9.
2002: Yoshio Takeda; Hideko Shimidzu; Kenta Mizuno; Sachiyo Inouchi; Toshiya Masuda; Eiji Hirata; Takakazu Shinzato; Mitsunori Aramoto; Hideaki Otsuka
An iridoid glucoside dimer and a non-glycosidic iridoid from the leaves of Lasianthus wallichii.
Chemical & pharmaceutical bulletin 2002;50(10):1395-7.
2002: Kimiko Tamemoto; Yoshihisa Takaishi; Kazuyoshi Kawazoe; Gisho Honda; Michiho Ito; Fumiyuki Kiuchi; Yoshio Takeda; Olimjon K Kodzhimatov; Ozodbek Ashurmetov; Katsuhide Shimizu; Hideko Nagasawa; Yoshihiro Uto; Hitoshi Hori
An unusual sesquiterpene derivative from Ferula kuhistanica.
Journal of natural products 2002;65(9):1323-4.
2002: Toshiya Masuda; Yasuo Oyama; Shigetomo Yonemori; Yoshio Takeda; Yuko Yamazaki; Shinichi Mizuguchi; Mami Nakata; Tomochika Tanaka; Lumi Chikahisa; Yuzuru Inaba; Yoshihiko Okada
Flow cytometric estimation on cytotoxic activity of leaf extracts from seashore plants in subtropical Japan: isolation, quantification and cytotoxic action of (-)-deoxypodophyllotoxin.
Phytotherapy research : PTR 2002;16(4):353-8.
2002: Qian Yu; Hideaki Otsuka; Eiji Hirata; Takakazu Shinzato; Yoshio Takeda
Turpinionosides A-E: megastigmane glucosides from leaves of Turpinia ternata Nakai.
Chemical & pharmaceutical bulletin 2002;50(5):640-4.
2002: Dong-Hui He; Hideaki Otsuka; Eiji Hirata; Takakazu Shinzato; Masahiko Bando; Yoshio Takeda
Tricalysiosides A-G: rearranged ent-kauranoid glycosides from the leaves of Tricalysia dubia.
Journal of natural products 2002;65(5):685-8.
2002: Toshiya Masuda; Yukiko Toi; Hiromi Bando; Tomomi Maekawa; Yoshio Takeda; Hidemasa Yamaguchi
Structural identification of new curcumin dimers and their contribution to the antioxidant mechanism of curcumin.
Journal of agricultural and food chemistry 2002;50(9):2524-30.
2002: Michiko Matsuhisa; Yasuhiro Shikishima; Yoshihisa Takaishi; Gisho Honda; Michiho Ito; Yoshio Takeda; Hirohumi Shibata; Tomihiko Higuti; Olimjon K Kodzhimatov; Ozodbek Ashurmetov
Benzoylphloroglucinol derivatives from Hypericum scabrum.
Journal of natural products 2002;65(3):290-4.
2002: Yukiko Tada; Yasuhiro Shikishima; Yoshihisa Takaishi; Hirofumi Shibata; Tomihiko Higuti; Gisho Honda; Michiho Ito; Yoshio Takeda; Olimjon K Kodzhimatov; Ozodbek Ashurmetov; Yasukazu Ohmoto
Coumarins and gamma-pyrone derivatives from Prangos pabularia: antibacterial activity and inhibition of cytokine release.
Phytochemistry 2002;59(6):649-54.
2001: B Fu; BN Su; Yoshihisa Takaishi; Gisho Honda; Michiho Ito; Yoshio Takeda; Olimjon K Kodzhimatov; Ozodbek Ashurmetov
A bis-sesquiterpene and sesquiterpenolides from Inula macrophylla.
Phytochemistry 2001;58(7):1121-8.
2001: Toshiya Masuda; Yuzuru Inaba; Yoshio Takeda
Antioxidant mechanism of carnosic acid: structural identification of two oxidation products.
Journal of agricultural and food chemistry 2001;49(11):5560-5.
2001: Kimiko Tamemoto; Yoshihisa Takaishi; B Chen; Kazuyoshi Kawazoe; Hirofumi Shibata; Tomihiko Higuti; Gisho Honda; Michiho Ito; Yoshio Takeda; Olimjon K Kodzhimatov; Ozodbek Ashurmetov
Sesquiterpenoids from the fruits of Ferula kuhistanica and antibacterial activity of the constituents of F. kuhistanica.
Phytochemistry 2001;58(5):763-7.
2001: Hideaki Otsuka; X N Zhong; Eiji Hirata; Takakazu Shinzato; Yoshio Takeda
Myrsinionosides A-E: megastigmane glycosides from the leaves of Myrsine seguinii Lev.
Chemical & pharmaceutical bulletin 2001;49(9):1093-7.
2001: Yoshio Takeda; N Isai; Toshiya Masuda; Gisho Honda; Yoshihisa Takaishi; Michiho Ito; Hideaki Otsuka; Ozodbek Ashurmetov; Olimjon K Khodzhimatov
Phlomisflavosides A and B, new flavonol bisglycosides from Phlomis spinidens.
Chemical & pharmaceutical bulletin 2001;49(8):1039-41.
2001: Hideaki Otsuka; I Hirata; Takakazu Shinzato; Yoshio Takeda
Glochiflavanosides A-D: flavanol glucosides from the leaves of Glochidion zeylanicum (Gaertn) A. Juss.
Chemical & pharmaceutical bulletin 2001;49(7):921-3.
2001: Toshiya Masuda; K Iritani; Shigetomo Yonemori; Yasuo Oyama; Yoshio Takeda
Isolation and antioxidant activity of galloyl flavonol glycosides from the seashore plant, Pemphis acidula.
Bioscience, biotechnology, and biochemistry 2001;65(6):1302-9.
2001: B Chen; Yoshihisa Takaishi; Kazuyoshi Kawazoe; Kimiko Tamemoto; Gisho Honda; Michiho Ito; Yoshio Takeda; Olimjon K Kodzhimatov; Ozodbek Ashurmetov
Farnesyl hydroxybenzoic acid derivatives from Ferula kuhistanica.
Chemical & pharmaceutical bulletin 2001;49(6):707-10.
2001: Toshiya Masuda; Tomomi Maekawa; K Hidaka; H Bando; Yoshio Takeda; Hidemasa Yamaguchi
Chemical studies on antioxidant mechanism of curcumin: analysis of oxidative coupling products from curcumin and linoleate.
Journal of agricultural and food chemistry 2001;49(5):2539-47.
2001: Yasuhiro Shikishima; Yoshihisa Takaishi; Gisho Honda; Michiho Ito; Yoshio Takeda; Olimjon K Kodzhimatov; Ozodbek Ashurmetov
Terpenoids and gamma-pyrone derivatives from Prangos tschimganica.
Phytochemistry 2001;57(1):135-41.
2001: Ekrem Sezik; E Yeşilada; Gisho Honda; Yoshihisa Takaishi; Yoshio Takeda; T Tanaka
Traditional medicine in Turkey X. Folk medicine in Central Anatolia.
Journal of ethnopharmacology 2001;75(2-3):95-115.
2001: BN Su; Yoshihisa Takaishi; T Yabuuchi; Takenori Kusumi; Motoo Tori; Shigeru Takaoka; Gisho Honda; Michiho Ito; Yoshio Takeda; Olimjon K Kodzhimatov; Ozodbek Ashurmetov
Sesquiterpenes and monoterpenes from the bark of Inula macrophylla.
Journal of natural products 2001;64(4):466-71.
2001: Yasuhiro Shikishima; Yoshihisa Takaishi; Gisho Honda; Michiho Ito; Yoshio Takeda; Olimjon K Kodzhimatov; Ozodbek Ashurmetov
Phenylbutanoids and stilbene derivatives of Rheum maximowiczii.
Phytochemistry 2001;56(4):377-81.
2000: B Chen; R Teranishi; Kazuyoshi Kawazoe; Yoshihisa Takaishi; Gisho Honda; M Itoh; Yoshio Takeda; Olimjon K Kodzhimatov
Sesquiterpenoids from Ferula kuhistanica.
Phytochemistry 2000;54(7):717-22.
2000: Yoshio Takeda; K Yanagihara; Toshiya Masuda; Hideaki Otsuka; Gisho Honda; Yoshihisa Takaishi; Ekrem Sezik; Erdem Yesilada
Labdane diterpenoids from Marrubium globosum ssp. globosum.
Chemical & pharmaceutical bulletin 2000;48(8):1234-5.
2000: Hideaki Otsuka; Eiji Hirata; Takakazu Shinzato; Yoshio Takeda
Isolation of lignan glucosides and neolignan sulfate from the leaves of Glochidion zeylanicum (Gaertn) A. Juss.
Chemical & pharmaceutical bulletin 2000;48(7):1084-6.
2000: Yoshio Takeda; Y Okada; Toshiya Masuda; Eiji Hirata; Takakazu Shinzato; Anki Takushi; Q Yu; Hideaki Otsuka
New megastigmane and tetraketide from the leaves of Euscaphis japonica.
Chemical & pharmaceutical bulletin 2000;48(5):752-4.
2000: M O Fatope; O A Adoum; Yoshio Takeda
C(18) acetylenic fatty acids of Ximenia americana with potential pesticidal activity.
Journal of agricultural and food chemistry 2000;48(5):1872-4.
2000: Toshiya Masuda; S Mizuguchi; Tamotsu Tanaka; K Iritani; Yoshio Takeda; Shigetomo Yonemori
Isolation and structure determination of new antioxidative ferulic acid glucoside esters from the rhizome of Alpinia speciosa, a Zingiberaceae plant used in Okinawan food culture.
Journal of agricultural and food chemistry 2000;48(5):1479-84.
2000: Yoshio Takeda; H Matsumura; Toshiya Masuda; Gisho Honda; Hideaki Otsuka; Yoshihisa Takaishi; Ekrem Sezik; Erdem Yesilada
Phlorigidosides A-C, iridoid glucosides from Phlomis rigida.
Phytochemistry 2000;53(8):931-5.
2000: BN Su; Yoshihisa Takaishi; Gisho Honda; M Itoh; Yoshio Takeda; Olimjon K Kodzhimatov; Ozodbek Ashurmetov
Sesquiterpene phenylpropanoid and sesquiterpene chromone derivatives from Ferula pallida.
Journal of natural products 2000;63(4):520-2.
2000: BN Su; Yoshihisa Takaishi; Gisho Honda; M Itoh; Yoshio Takeda; Olimjon K Kodzhimatov; Ozodbek Ashurmetov
Sesquiterpene coumarins and related derivatives from Ferula pallida.
Journal of natural products 2000;63(4):436-40.
2000: Hideaki Otsuka; Eiji Hirata; Anki Takushi; Takakazu Shinzato; Yoshio Takeda; Masahiko Bando; M Kido
Glochidionolactones A-F: butenolide glucosides from leaves of Glochidion zeylanicum (GAERTN) A. JUSS.
Chemical & pharmaceutical bulletin 2000;48(4):547-51.
2000: H Sudo; T Ide; Hideaki Otsuka; Eiji Hirata; Anki Takushi; Takakazu Shinzato; Yoshio Takeda
Megastigmane, benzyl and phenethyl alcohol glycosides, and 4,4'-dimethoxy-beta-truxinic acid catalpol diester from the leaves of Premna subscandens MERR.
Chemical & pharmaceutical bulletin 2000;48(4):542-6.
2000: B Chen; Kazuyoshi Kawazoe; Yoshihisa Takaishi; Gisho Honda; M Itoh; Yoshio Takeda; Olimjon K Kodzhimatov; Ozodbek Ashurmetov
Prenylated benzoic acid derivatives from Ferula kuhistanica.
Journal of natural products 2000;63(3):362-5.
2000: P Zhou; Yoshihisa Takaishi; Hongquan Duan; B Chen; Gisho Honda; M Itoh; Yoshio Takeda; Olimjon K Kodzhimatov; Kuo-Hsiung Lee
Coumarins and bicoumarin from Ferula sumbul: anti-HIV activity and inhibition of cytokine release.
Phytochemistry 2000;53(6):689-97.
2000: BN Su; Yoshihisa Takaishi; Motoo Tori; Shigeru Takaoka; Gisho Honda; M Itoh; Yoshio Takeda; Olimjon K Kodzhimatov; Ozodbek Ashurmetov
Macrophyllols A and B, two unusual novel sesquiterpene and monoterpene dimers from the bark of Inula macrophylla.
Organic letters 2000;2(4):493-6.
1999: H Sudo; K Kijima; Hideaki Otsuka; T Ide; Eiji Hirata; Yoshio Takeda; M Isaji; Y Kurashina
A collagen network formation effector from leaves of Premna subscandens.
Chemical & pharmaceutical bulletin 1999;47(9):1341-3.
1999: Toshiya Masuda; Shigetomo Yonemori; Yasuo Oyama; Yoshio Takeda; Tamotsu Tanaka; T Andoh; A Shinohara; Mami Nakata
Evaluation of the antioxidant activity of environmental plants: activity of the leaf extracts from seashore plants.
Journal of agricultural and food chemistry 1999;47(4):1749-54.
1999: E Yeşilada; Ekrem Sezik; Gisho Honda; Yoshihisa Takaishi; Yoshio Takeda; T Tanaka
Traditional medicine in Turkey IX: folk medicine in north-west Anatolia.
Journal of ethnopharmacology 1999;64(3):195-210.
1999: Toshiya Masuda; K Hidaka; A Shinohara; Tomomi Maekawa; Yoshio Takeda; Hidemasa Yamaguchi
Chemical studies on antioxidant mechanism of curcuminoid: analysis of radical reaction products from curcumin.
Journal of agricultural and food chemistry 1999;47(1):71-7.
1998: Yoshio Takeda; Toshiya Masuda; T Matsumoto; Y Takechi; T Shingu; H G Floss
Nuclear magnetic resonance and biosynthetic studies of neoantimycin and structure elucidation of isoneoantimycin, a minor metabolite related to neoantimycin.
Journal of natural products 1998;61(8):978-81.
1998: Toshiya Masuda; H Matsumura; Yasuo Oyama; Yoshio Takeda; A Jitoe; A Kida; K Hidaka
Synthesis of (+/-)-cassumunins A and B, new curcuminoid antioxidants having protective activity of the living cell against oxidative damage.
Journal of natural products 1998;61(5):609-13.
1997: Atsushi Minamoto; Kensuke Nakano; Seiji Tanimoto; Hideaki Mizote; Yoshio Takeda
Ultrasound biomicroscopy in the diagnosis of persistent hypotony after vitrectomy.
American journal of ophthalmology 1997;123(5):711-3.
1997: Yoshio Takeda; Hiromu K Mishima; Shigeyuki Kitamura; K Tatsumi
Purification and characterization of alpha,beta-ketoalkene double bond reductases from bovine eyes.
Current eye research 1997;16(4):327-32.
1997: Yoshio Takeda; H Zhang; T Matsumoto; Hideaki Otsuka; Y Oosio; Gisho Honda; M Tabata; T Fujita; H Sun; Ekrem Sezik; Erdem Yesilada
Megastigmane glycosides from Salvia nemorosa.
Phytochemistry 1997;44(1):117-20.
1996: H Kijima; Hideaki Otsuka; T Ide; C Ogimi; E Hirata; A Takushi; Yoshio Takeda
Glycosides of megastigmane and of the simple alcohols from Alangium premnifolium.
Phytochemistry 1996;42(3):723-7.
1995: Yoshio Takeda; Y Morimoto; T Matsumoto; C Ogimi; E Hirata; A Takushi; Hideaki Otsuka
Iridoid glucosides from the leaves and stems of Duranta erecta.
Phytochemistry 1995;39(4):829-33.
1995: Hideaki Otsuka; M Yao; K Kamada; Yoshio Takeda
Alangionosides G-M: glycosides of megastigmane derivatives from the leaves of Alangium premnifolium.
Chemical & pharmaceutical bulletin 1995;43(5):754-9.
1995: T Matsumoto; T Ishida; Yoshio Takeda; K Soh; I Kubo; M Sakamoto
Enantioselective biotransformation of 1-isopropylnaphthalene in rabbits.
Chemical & pharmaceutical bulletin 1995;43(2):216-22.
1994: T Matsumoto; Yoshio Takeda; E Iwata; M Sakamoto; T Ishida
Lipase-catalyzed hydrolysis of some racemic 1-acetoxy-2-arylpropanes.
Chemical & pharmaceutical bulletin 1994;42(6):1191-7.
1992: T Matsumoto; T Ishida; T Yoshida; H Terao; Yoshio Takeda; Y Asakawa
The enantioselective metabolism of p-cymene in rabbits.
Chemical & pharmaceutical bulletin 1992;40(7):1721-6.
1990: Hideaki Otsuka; Yoshio Takeda; K Yamasaki
Xyloglucosides of benzyl and phenethyl alcohols and Z-hex-3-en-1-ol from leaves of Alangium platanifolium var. trilobum.
Phytochemistry 1990;29(11):3681-3.