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51

New Spirocyclic Sesquiterpenes (I) from the Marine Sponge Geodia exigua

Mylene M. Uy, Shinji Ohta, Mihoko Yanai, Emi Ohta, Toshifumi Hirata, Susumu Ikegami

Journal:

Year:

2003

File:

PDF, 7 KB

2003

52

Terpenoid Coumarins of the Genus Ferula

Mohamed H. Abd El-Razek, Shinji Ohta, Toshifumi Hirata

Journal:

Year:

2003

File:

PDF, 4 KB

2003

53

Piericidins C5 and C6: New 4-Pyridinol Compounds Produced by Streptomyces sp. and Nocardioides sp.

Natsuki K. Kubota, Emi Ohta, Shinji Ohta, Fumito Koizumi, Makoto Suzuki, Michio Ichimura, Susumu Ikegami

Journal:

Year:

2004

File:

PDF, 61 KB

2004

54

Base-Catalyzed endo-Mode Cyclization of Allenes: Easy Preparation of Five- to Nine-Membered Oxacycles.

Chisato Mukai, Masaru Ohta, Haruhisa Yamashita, Shinji Kitagaki

Journal:

Year:

2005

File:

PDF, 35 KB

2005

55

ChemInform Abstract: Synthesis of Multinary Rare-Earth Sulfides PrGdS3, NdGdS3, and SmEuGdS4, and Investigation of Their Thermoelectric Properties.

Michihiro Ohta, Toshihiro Kuzuya, Hideto Sasaki, Taku Kawasaki, Shinji Hirai

Journal:

Year:

2009

Language:

english

File:

PDF, 17 KB

english, 2009

56

ChemInform Abstract: JBIR-14, a Highly Oxygenated Ergostane, from Isaria sp. NBRC 104353.

Jun-ya Ueda, Tatsuki Kunoh, Masayuki Sekigawa, Shu-ichi Wada, Yukio Mukai, Shinji Ohta, Ryuzo Sasaki, Tamio Mizukami, Motoki Takagi, Kazuo Shin-ya

Journal:

Year:

2010

File:

PDF, 18 KB

2010

57

ChemInform Abstract: Saikachinoside A, a Novel 3-Prenylated Isoguanine Glucoside from Seeds of Gleditsia japonica

Tadashi Kajimoto, Nobuwa Aoki, Emi Ohta, Yasushi Kawai, Shinji Ohta

Journal:

Year:

2010

File:

PDF, 18 KB

2010

58

ChemInform Abstract: Ashitabaol A, a New Antioxidative Sesquiterpenoid from Seeds of Angelica keiskei.

Nobuwa Aoki, Shinji Ohta

Journal:

Year:

2010

File:

PDF, 18 KB

2010

59

A message delivery method for highly mobile agents based on clustering

Tomoyuki Ohta, Yasuo Masuda, Shinji Inoue, Yoshiaki Kakuda, Atsushi Ito

Journal:

Electronics and Communications in Japan (Part I: Communications))

Year:

2006

Language:

english

File:

PDF, 617 KB

english, 2006

60

Scanning electron microscopy of the liver cell cytoskeleton

Takeshi Okanoue, Masaharu Ohta, Shinji Fushiki, Ongyoku Ou, Kazutomo Kachi, Tadao Okuno, Tatsuro Takino, Samuel W. French

Journal:

Year:

1985

Language:

english

File:

PDF, 842 KB

english, 1985

61

Monocyte chemoattractant protein-1 expression correlates with macrophage infiltration and tumor vascularity in human esophageal squamous cell carcinomas

Masahiro Ohta, Yasuhiko Kitadai, Shinji Tanaka, Masaharu Yoshihara, Wataru Yasui, Naofumi Mukaida, Ken Haruma, Kazuaki Chayama

Journal:

International Journal of Cancer

Year:

2002

Language:

english

File:

PDF, 723 KB

english, 2002

62

Phosphatidylinositol 3-kinase/Akt auto-regulates PDGF-BB-stimulated interleukin-6 synthesis in osteoblasts

Yoshiteru Hanai, Haruhiko Tokuda, Toshiki Ohta, Rie Matsushima-Nishiwaki, Shinji Takai, Osamu Kozawa

Journal:

Journal of Cellular Biochemistry

Year:

2006

Language:

english

File:

PDF, 191 KB

english, 2006

63

(−)-epigallocatechin gallate enhances prostaglandin F2α-induced VEGF synthesis via upregulating SAPK/JNK activation in osteoblasts

Haruhiko Tokuda, Shinji Takai, Rie Matsushima-Nishiwaki, Shigeru Akamatsu, Yoshiteru Hanai, Takayuki Hosoi, Atsushi Harada, Toshiki Ohta, Osamu Kozawa

Journal:

Journal of Cellular Biochemistry

Year:

2007

Language:

english

File:

PDF, 192 KB

english, 2007

64

An efficient method for following the enzymic reactions involved in camphor biosynthesis in cinnamomum camphora by use of GC-MS and regiospecifically deuteriated substrate

Shinji Ohta, Tohru Yamamitsu, Takayuki Suga

Journal:

Journal of Labelled Compounds and Radiopharmaceuticals

Year:

1992

Language:

english

File:

PDF, 316 KB

english, 1992

65

Synthesis and 15N NMR spectra of 1- and 4-15N-2,3,5-trimethylpyrazines and their N-oxides

Mikiko Maeda, Chiseko Sakuma, Shinji Kawachi, Katsumi Tabei, Ablikim Kerim, Teruo Kurihara, Akihiro Ohta

Journal:

Journal of Labelled Compounds and Radiopharmaceuticals

Year:

1995

Language:

english

File:

PDF, 289 KB

english, 1995

66

Comparison of the levels of human herpesvirus 6 (HHV-6) DNA and cytokines in the cerebrospinal fluid and serum of children with HHV-6 encephalopathy

Shinji Kawabe, Yoshinori Ito, Rieko Ohta, Ayako Sofue, Kensei Gotoh, Tsuneo Morishima, Hiroshi Kimura

Journal:

Journal of Medical Virology

Year:

2010

Language:

english

File:

PDF, 157 KB

english, 2010

67

Rhythmic pupillary oscillation in Creutzfeldt-Jakob disease associated with the Glu/Lys mutation of prion protein codon 200

Kaori Nagasaka, Emiko Ohta, Takamura Nagasaka, Shinji Togashi, Michiaki Miwa, Yuki Nakamura, Kazumasa Shindo, Zenji Shiozawa

Journal:

Movement Disorders

Year:

2010

Language:

english

File:

PDF, 438 KB

english, 2010

68

An anomaly in the biosynthesis of (E,E)-farnesol by the crude enzyme system of Pisum sativum

Takamitsu Yoshioka, Rong-yu Zheng, Takayuki Suga, Shinji Ohta

Journal:

Year:

1990

Language:

english

File:

PDF, 687 KB

english, 1990

69

Endogenous pine wood nematicidal substances in pines, Pinus massoniana, P. strobus and P. palustris

Takayuki Suga, Shinji Ohta, Kiyotaka Munesada, Nagatoshi Ide, Masako Kurokawa, Masahiro Shimizu, Emi Ohta

Journal:

Year:

1993

Language:

english

File:

PDF, 765 KB

english, 1993

70

24-Epi-pterosterone: A novel phytoecdysone from the roots of Athyrium yokoscense

Shinji Ohta, Jian-Ru Guo, Yoshikazu Hiraga, Takayuki Suga

Journal:

Year:

1996

Language:

english

File:

PDF, 201 KB

english, 1996

71

Rhopaloic acid A: A novel norsesterterpene from a marine sponge, Rhopaloeides sp., which inhibits gastrulation of starfish embryos

Shinji Ohta, Mihoko Uno, Miyuki Yoshimura, Yoshikazu Hiraga, Susumu Ikegami

Journal:

Tetrahedron Letters

Year:

1996

Language:

english

File:

PDF, 153 KB

english, 1996

72

Hippospongic acid A: An unusual triterpenoic acid from a marine sponge, Hippospongia sp., which inhibits gastrulation of starfish embryos

Shinji Ohta, Mihoko Uno, Munetaka Tokumasu, Yoshikazu Hiraga, Susumu Ikegami

Journal:

Tetrahedron Letters

Year:

1996

Language:

english

File:

PDF, 144 KB

english, 1996

73

Very highly fluorescent product from 2′-deoxyguanosine with t-butanol in aqueous solution by exposure to cobalt-60 gamma-rays

Osamu Yamamoto, Mohsin Ali, Michiko Okazaki, Hiroaki Terato, Yoshihiko Ohyama, Shinji Ohta

Journal:

Radiation Physics and Chemistry

Year:

1995

Language:

english

File:

PDF, 568 KB

english, 1995

74

Synthesis of an immunosuppressant SQAG9 and determination of the binding peptide by T7 phage display

Takayuki Yamazaki, Satoko Aoki, Keisuke Ohta, Shinji Hyuma, Kengo Sakaguchi, Fumio Sugawara

Journal:

Bioorganic & Medicinal Chemistry Letters

Year:

2004

Language:

english

File:

PDF, 285 KB

english, 2004

75

Rapid and sensitive determination of tryptophan, serotonin and psychoactive tryptamines by thin-layer chromatography/fluorescence detection

Noriyuki Kato, Takashi Kojima, Shinji Yoshiyagawa, Hikoto Ohta, Akira Toriba, Hideo Nishimura, Kazuichi Hayakawa

Journal:

Journal of Chromatography A

Year:

2007

Language:

english

File:

PDF, 374 KB

english, 2007

76

Ferulsinaic acid, a sesquiterpene coumarin with a rare carbon skeleton from Ferula species

Ahmed A. Ahmed, Mohamed-Elamir F. Hegazy, Amar Zellagui, Salah Rhouati, Tarik A. Mohamed, Ahmed A. Sayed, Mohamed A. Abdella, Shinji Ohta, Toshifumi Hirata

Journal:

Year:

2007

Language:

english

File:

PDF, 270 KB

english, 2007

77

Bioactive jatrophane diterpenes from Euphorbia guyoniana

Mohamed-Elamir F. Hegazy, Abou El-Hamd H. Mohamed, Nobuwa Aoki, Toshitaka Ikeuchi, Emi Ohta, Shinji Ohta

Journal:

Year:

2010

Language:

english

File:

PDF, 332 KB

english, 2010

78

Locustoside A — A new purine alkaloid glucoside from seeds of Gleditsia japonica

Tadashi Kajimoto, Nobuwa Aoki, Emi Ohta, Shinji Ohta

Journal:

Phytochemistry Letters

Year:

2010

Language:

english

File:

PDF, 155 KB

english, 2010

79

Chemistry of allenic/propargylic anions generated by base treatment of sulfonylallenes: synthesis of 1-alkynyl-1-sulfonylcycloalkanes and cycloalkanols

Shinji Kitagaki, Satoshi Teramoto, Yuu Ohta, Harumi Kobayashi, Mika Takabe, Chisato Mukai

Journal:

Year:

2010

Language:

english

File:

PDF, 565 KB

english, 2010

80

Exiguolide, a new macrolide from the marine sponge Geodia exigua

Shinji Ohta, Mylene M. Uy, Mihoko Yanai, Emi Ohta, Toshifumi Hirata, Susumu Ikegami

Journal:

Tetrahedron Letters

Year:

2006

Language:

english

File:

PDF, 125 KB

english, 2006

81

Enantioselective cyclopropanation reaction using a conformationally fixed pyridinium ylide through a cation–π interaction

Shinji Yamada, Jun Yamamoto, Emiko Ohta

Journal:

Tetrahedron Letters

Year:

2007

Language:

english

File:

PDF, 355 KB

english, 2007

82

Saikachinoside A, a novel 3-prenylated isoguanine glucoside from seeds of Gleditsia japonica

Tadashi Kajimoto, Nobuwa Aoki, Emi Ohta, Yasushi Kawai, Shinji Ohta

Journal:

Tetrahedron Letters

Year:

2010

Language:

english

File:

PDF, 361 KB

english, 2010

83

Ashitabaol A, a new antioxidative sesquiterpenoid from seeds of Angelica keiskei

Nobuwa Aoki, Shinji Ohta

Journal:

Tetrahedron Letters

Year:

2010

Language:

english

File:

PDF, 267 KB

english, 2010

84

Sesquiterpene coumarins from the roots of Ferula assa-foetida

Mohamed H Abd El-Razek, Shinji Ohta, Ahmed A Ahmed, Toshifumi Hirata

Journal:

Year:

2001

Language:

english

File:

PDF, 188 KB

english, 2001

85

Arachisprenols: Polyprenols possessing a geranyl residue from Arachis hypogaea

Tadashi Aoki, Kazuhiko Matsuo, Takayuki Suga, Shinji Ohta

Journal:

Year:

1997

Language:

english

File:

PDF, 505 KB

english, 1997

86

Biologically active clerodane-type diterpene glycosides from the root-stalks of Dicranopteris pedata

Tadashi Aoki, Tadashi Ohro, Yoshikazu Hiraga, Takayuki Suga, Mihoko Uno, Shinji Ohta

Journal:

Year:

1997

Language:

english

File:

PDF, 701 KB

english, 1997

87

Enantioselective total synthesis and absolute stereostructure of hippospongic acid A

Hideaki Hioki, Hidenori Ooi, Masayo Hamano, Yumi Mimura, Suzuyo Yoshio, Mitsuaki Kodama, Shinji Ohta, Mihoko Yanai, Susumu Ikegami

Journal:

Year:

2001

Language:

english

File:

PDF, 221 KB

english, 2001

88

Ancorinoside A Mg salt from the marine sponge, Ancorina sp., which specifically inhibits blastulation of starfish embryos

Emi Ohta, Shinji Ohta, Susumu Ikegami

Journal:

Year:

2001

Language:

english

File:

PDF, 101 KB

english, 2001

89

Micromonospolides A–C, new macrolides from Micromonospora sp.

Emi Ohta, Natsuki K Kubota, Shinji Ohta, Makoto Suzuki, Tatsuhiro Ogawa, Akiko Yamasaki, Susumu Ikegami

Journal:

Year:

2001

Language:

english

File:

PDF, 120 KB

english, 2001

90

New spirocyclic sesquiterpenes from the marine sponge Geodia exigua

Mylene M Uy, Shinji Ohta, Mihoko Yanai, Emi Ohta, Toshifumi Hirata, Susumu Ikegami

Journal:

Year:

2003

Language:

english

File:

PDF, 163 KB

english, 2003

91

Novel norsesterterpenes, which inhibit gastrulation of the starfish embryo, from the marine sponge Rhopaloeides sp.

Mihoko Yanai, Shinji Ohta, Emi Ohta, Susumu Ikegami

Journal:

Year:

1998

Language:

english

File:

PDF, 337 KB

english, 1998

92

Isojaspisin: A novel styryl sulfate from a marine sponge, Jaspis sp., that inhibits hatching of sea urchin embryos

Shinji Ohta, Hiroki Kobayashi, Susumu Ikegami

Journal:

Tetrahedron Letters

Year:

1994

Language:

english

File:

PDF, 165 KB

english, 1994

93

Clathrynamides A, B, and C: Novel amides from a marine sponge Clathria sp. That inhibit cell division of fertilized starfish eggs

Shinji Ohta, Hironobu Okada, Hiroki Kobayashi, Jose M. Oclarit, Susumu Ikegami

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 269 KB

english, 1993

94

A trifluoromethanesulfonic acid-catalyzed reaction of arylhydrazines with benzene

Toshiharu Ohta, Shinji Miyake, Koichi Shudo

Journal:

Tetrahedron Letters

Year:

1985

Language:

english

File:

PDF, 252 KB

english, 1985

95

Improved procedure for the reductive phenylation and cyclization of nitroarenes

Shinji Miyake, Atsushi Sasaki, Toshiharu Ohta, Koichi Shudo

Journal:

Tetrahedron Letters

Year:

1985

Language:

english

File:

PDF, 219 KB

english, 1985

96

Micromonospolide A, a new macrolide from Micromonospora sp.

Emi Ohta, Shinji Ohta, Natsuki K Kubota, Makoto Suzuki, Tatsuhiro Ogawa, Akiko Yamasaki, Susumu Ikegami

Journal:

Tetrahedron Letters

Year:

2001

Language:

english

File:

PDF, 63 KB

english, 2001

97

Revised structure, synthesis and absolute configuration of hippospongic acid A

Hideaki Hioki, Masayo Hamano, Yumi Mimura, Mitsuaki Kodama, Shinji Ohta, Mihoko Yanai, Susumu Ikegami

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 122 KB

english, 1998

98

An efficient chemical synthesis of nicotinamide riboside (NAR) and analogues

Shinji Tanimori, Takeshi Ohta, Mitsunori Kirihata

Journal:

Bioorganic & Medicinal Chemistry Letters

Year:

2002

Language:

english

File:

PDF, 103 KB

english, 2002

99

Exiguamide, a new spirocyclic sesquiterpene from the marine sponge Geodia exigua that inhibits cell fate specification during sea urchin embryogenesis

Mylene M Uy, Shinji Ohta, Mihoko Yanai, Emi Ohta, Toshifumi Hirata, Susumu Ikegami

Journal:

Bioorganic & Medicinal Chemistry Letters

Year:

2002

Language:

english

File:

PDF, 125 KB

english, 2002

100

A New α,β,γ,δ-Unsaturated carboxylic acid and three new cyclic peroxides from the marine sponge, Monotria japonica, which selectively lyse starfish oocytes without affecting nuclear morphology

Mihoko Yanai, Shinji Ohta, Emi Ohta, Toshifumi Hirata, Susumu Ikegami

Journal:

Bioorganic & Medicinal Chemistry

Year:

2003

Language:

english

File:

PDF, 267 KB

english, 2003