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1

Global and regional evaluation of systolic and distolic left ventricular temporal parameters using a novel program for ECG-gated myocardial perfusion SPECT

Akira Yamamoto, Naoto Takahashi, Kazuo Munakata, Tetsuo Hosoya, Masato Shiiba, Takao Okuyama, Kazuya Abe, Tadashi Kaneshiro, Haruko Tsuruta, Toshi Takama, Masashi Sato

Journal:

Annals of Nuclear Medicine

Year:

2007

Language:

english

File:

PDF, 1.67 MB

english, 2007

2

Determination of Estazolam in Plasma by High-Performance Liquid Chromatography with Solid-Phase Extraction.

MIURA, Masatomo, OHKUBO, Tadashi, SUGAWARA, Kazunobu, OKUYAMA, Naoyuki, OTANI, Koichi

Journal:

Analytical Sciences

Year:

2002

Language:

english

File:

PDF, 46 KB

english, 2002

3

Entropy-Controlled Asymmetric Synthesis. How Differential Activation Entropy Is Induced in Chiral Tethered Reactions

Sugimura, Takashi, Hagiya, Kazutake, Sato, Yasuhiro, Tei, Takahiro, Tai, Akira, Okuyama, Tadashi

Journal:

Organic Letters

Year:

2001

Language:

english

File:

PDF, 60 KB

english, 2001

4

Pediatric Surgery

Iwanaka, Tadashi, Yamataka, Atsuyuki, Uemura, Sadashige, Okuyama, Hiroomi, Segawa, Osamu, Nio, Masaki, Yoshizawa, Joji, Yagi, Makoto, Ieiri, Satoshi, Uchida, Hiroo, Koga, Hiroyuki, Sato, Masahito, Soh

Journal:

Asian Journal of Endoscopic Surgery

Year:

2015

Language:

english

File:

PDF, 222 KB

english, 2015

5

Recent trends in the prevalence of Down syndrome in Japan, 1980-1997

Hoshi, Nobuhiko, Hattori, Rifumi, Hanatani, Kaoru, Okuyama, Kazuhiko, Yamada, Hideto, Kishida, Tatsuro, Yamada, Takahiro, Sagawa, Tadashi, Sumiyoshi, Yoshio, Fujimoto, Seiichiro

Journal:

American Journal of Medical Genetics

Year:

1999

Language:

english

File:

PDF, 201 KB

english, 1999

6

Distribution pattern and risk factors of pelvic and para-aortic lymph node metastasis in epithelial ovarian carcinoma

Norihiko Tsumura, Noriaki Sakuragi, Hitoshi Hareyama, Chikara Satoh, Mamoru Oikawa, Hideto Yamada, Ritsu Yamamoto, Kazuhiko Okuyama, Takafumi Fujino, Tadashi Sagawa, Seiichiro Fujimoto

Journal:

International Journal of Cancer

Year:

1998

Language:

english

File:

PDF, 70 KB

english, 1998

7

Prenatal identification of mos 45, X/46, X, +mar in a normal male baby by cytogenetic and molecular analysis

Nobuhiko Hoshi, Hidefumi Tonoki, Yasushi Handa, Takafumi Fujino, Kazuhiko Okuyama, Yasutsugu Koga, Yoshinori Matsumoto, Takahiro Yamada, Hideto Yamada, Tatsuro Kishida, Tadashi Sagawa, Kenji Fujieda,

Journal:

Prenatal Diagnosis

Year:

1998

Language:

english

File:

PDF, 194 KB

english, 1998

8

ChemInform Abstract: Solvolysis of 2,2-Dialkylvinyl Iodonium Salt: Alkyl Participation and Possibility of a Primary Vinylic Cation Intermediate.

Tadashi Okuyama, Hiroshi Yamataka, Masahito Ochiai

Journal:

Year:

2000

File:

PDF, 25 KB

2000

9

ChemInform Abstract: Mechanistic Aspects of Reactions of Vinylic Iodonium/Iodane with Nucleophiles

Tadashi Okuyama

Journal:

Year:

2000

File:

PDF, 25 KB

2000

10

ChemInform Abstract: Chirality Transfer from 4-Methylcyclohexylidenemethyl(phenyl)iodonium Tetrafluoroborate to 4-Methylcycloheptanone During Solvolysis: Evidence Against a Primary Vinylic Cation as Intermediate.

Morifumi Fujita, Yuichi Sakanishi, Tadashi Okuyama

Journal:

Year:

2001

File:

PDF, 31 KB

2001

11

ChemInform Abstract: Reactions of 2,2-Dialkylvinyl Iodonium Salt with Halide Ions.

Tadashi Okuyama, Koichi Sato, Masahito Ochiai

Journal:

Year:

2001

File:

PDF, 29 KB

2001

12

ChemInform Abstract: Solvolysis of Optically Active 4-Methylcyclohexylidenemethyl Triflate: Evidence Against a Primary Vinyl Cation as an Intermediate.

Morifumi Fujita, Akiyo Yamamoto, Takashi Sugimura, Tadashi Okuyama

Journal:

Year:

2002

File:

PDF, 30 KB

2002

13

ChemInform Abstract: Oxy-Function Promoted Hydroboration of Conjugated Dienes with Controlled Allylic Borane Rearrangement.

Takashi Sugimura, Futoshi Nishida, Takahiro Tei, Akiko Morisawa, Akira Tai, Tadashi Okuyama

Journal:

Year:

2002

File:

PDF, 30 KB

2002

14

ChemInform Abstract: Solvolysis of Vinyl Iodonium Salts. New Insights into Vinyl Cation Intermediates

Tadashi Okuyama

Journal:

Year:

2002

File:

PDF, 24 KB

2002

15

ChemInform Abstract: Novel Acid-Catalyzed Rearrangement of Alkoxycarbonylcycloheptatriene Assisted by Alkoxy Substitution.

Takashi Sugimura, Masami Kagawa, Kazutake Hagiya, Tadashi Okuyama

Journal:

Year:

2002

File:

PDF, 28 KB

2002

16

Generation from Iodonium Salts and Regioselective Reaction with Nucleophile.

Morifumi Fujita, Yuichi Sakanishi, Wan Hyeok Kim, Tadashi Okuyama

Journal:

Year:

2003

File:

PDF, 124 KB

2003

17

Chirality Probe Approach to Reactive Intermediates: Primary Vinyl Cation and Cycloalkyne

Tadashi Okuyama, Morifumi Fujita

Journal:

Year:

2003

File:

PDF, 50 KB

2003

18

Asymmetric Synthesis of gem-Dimethylcyclopropane-Fused Compounds Through Chemo-, Regio-, and Stereoselective Cyclopropanation and Stereospecific Rearrangement.

Takashi Sugimura, Takahiro Tei, Tadashi Okuyama

Journal:

Year:

2003

File:

PDF, 143 KB

2003

19

Asymmetric Synthesis by Vapor Phase Pyrolysis.

Takashi Sugimura, Takahiro Tei, Tadashi Okuyama

Journal:

Year:

2003

File:

PDF, 92 KB

2003

20

Chiral and Flexible 2,4-Pentanediol-Tethered Cyclopropanation of Olefins with a Carbenoid Derived from a Diazo Ester to Construct Three Stereogenic Centers.

Takashi Sugimura, Atsushi Mori, Akira Tai, Takahiro Tei, Yasuhiro Sakamoto, Tadashi Okuyama

Journal:

Year:

2003

File:

PDF, 158 KB

2003

21

Michael Addition of Cyanide to Cyclohex-1-enyliodonium Salts.

Morifumi Fujita, Wan Hyeok Kim, Tadashi Okuyama

Journal:

Year:

2003

File:

PDF, 77 KB

2003

22

Nucleophilic Vinylic Substitution and Vinyl Cation Intermediates in the Reactions of Vinyl Iodonium Salts

Tadashi Okuyama, Gerrit Lodder

Journal:

Year:

2003

File:

PDF, 50 KB

2003

23

Generation of Cycloheptyne During the Solvolysis of Cyclohexylidenemethyliodonium Salt in the Presence of Base.

Morifumi Fujita, Kenji Ihara, Wan Hyeok Kim, Tadashi Okuyama

Journal:

Year:

2004

File:

PDF, 103 KB

2004

24

Regioselective Formation of Optically Active Cycloheptatrienes by Chiral Tethered Buechner Reaction.

Takashi Sugimura, Naoko Ohuchi, Masami Kagawa, Kazutake Hagiya, Tadashi Okuyama

Journal:

Year:

2004

File:

PDF, 111 KB

2004

25

Regioselective Ring Opening of Alkylidenecyclopropanone Silyl Acetals.

Morifumi Fujita, Koji Fujiwara, Hiroshi Mouri, Yutaka Kazekami, Tadashi Okuyama

Journal:

Year:

2005

File:

PDF, 21 KB

2005

26

Preparation of Methoxy-Substituted Optically Active 7-Alkoxycarbonylcycloheptatrienes and Their Acid-Promoted Rearrangements.

Takashi Sugimura, Masami Kagawa, Naoko Ohuchi, Kazutake Hagiya, Tadashi Okuyama

Journal:

Year:

2005

Language:

english

File:

PDF, 27 KB

english, 2005

27

Perhydroxylation of Chiral Cycloheptatriene Ring Through Stepwise Oxidation under Regio- and Stereocontrol.

Takashi Sugimura, Masami Kagawa, Naoko Ohuchi, Aya Inoue, Tadashi Okuyama

Journal:

Year:

2005

File:

PDF, 36 KB

2005

28

Generation of Cycloalkynes by Hydro-Iodonio-Elimination of Vinyl Iodonium Salts

Tadashi Okuyama, Morifumi Fujita

Journal:

Year:

2005

File:

PDF, 8 KB

2005

29

Prognostic significance of combined conventional and immunocytochemical cytology for peritoneal washings in endometrial carcinoma

Ming-Liang Luo, Noriaki Sakuragi, Michio Shimizu, Kuniyoshi Seino, Kazuhira Okamoto, Masanori Kaneuchi, Yasuhiko Ebina, Kazuhiko Okuyama, Takafumi Fujino, Tadashi Sagawa, Seiichiro Fujimoto

Journal:

Cancer Cytopathology

Year:

2001

Language:

english

File:

PDF, 275 KB

english, 2001

30

Development of a novel Ag-specific immunotherapy using CpG oligodeoxynucleotides in a new, unique mouse cutaneous eosinophilic inflammation model

Tanawatt Kootiratrakarn, Taku Fujimura, Kunio Sano, Ryuhei Okuyama, Setsuya Aiba, Hachiro Tagami, Tadashi Terui

Journal:

European Journal of Immunology

Year:

2005

Language:

english

File:

PDF, 384 KB

english, 2005

31

Stereoselective Formation of a Chiral Ether by Intramolecular O–H Insertion Reaction of a Metal Carbenoid Generated from Diazoacetoacetate

Chun Young Im, Tadashi Okuyama, Takashi Sugimura

Journal:

European Journal of Organic Chemistry

Year:

2008

Language:

english

File:

PDF, 210 KB

english, 2008

32

A report on the 19th symposium on Heteroatom Chemistry of the Chemical Society of Japan

Ryu Sato, Tadashi Okuyama, Shigeru Oae

Journal:

Heteroatom Chemistry

Year:

1992

Language:

english

File:

PDF, 443 KB

english, 1992

33

Equilibrium and kinetic studies of reactions of 2-methyl-2-propanesulfenic acid

Tadashi Okuyama, Katsuji Miyake, Takayuki Fueno, Toshiaki Yoshimura, Shinichi Soga, Eiichi Tsukurimichi

Journal:

Heteroatom Chemistry

Year:

1992

Language:

english

File:

PDF, 483 KB

english, 1992

34

Oxygen-18 labeling of cyclic and acyclic sulfinate esters

Tadashi Okuyama, Koji Senda, Hitomichi Takano, Noriyuki Ando, Kazunori Ohnishi, Takayuki Fueno

Journal:

Heteroatom Chemistry

Year:

1993

Language:

english

File:

PDF, 489 KB

english, 1993

35

Kinetic studies of hydrolysis of some alkyl benzenesulfinates

Tadashi Okuyama

Journal:

Heteroatom Chemistry

Year:

1993

Language:

english

File:

PDF, 287 KB

english, 1993

36

Ionic properties of the triethylaluminum and stannic cloride system as stereospecific polymerization catalyst for vinyl isobutyl ether

Yoshimitsu Takeda, Tadashi Okuyama, Takayuki Fueno, Junji Furukawa

Journal:

Macromolecular Chemistry and Physics

Year:

1964

Language:

english

File:

PDF, 1.14 MB

english, 1964

37

Stereoselective hydrogenation of conjugate diene directed by hydroxy group and asymmetric synthesis of deoxypolypropionate units

Takashi Sugimura, Chun Young Im, Yasuhiro Sato, Tadashi Okuyama

Journal:

Year:

2007

Language:

english

File:

PDF, 465 KB

english, 2007

38

Stereocontrolled intramolecular meta-arene–alkene photocycloaddition reactions using chiral tethers: efficiency of the tether derived from 2,4-pentanediol

Takashi Sugimura, Akiko Yamasaki, Tadashi Okuyama

Journal:

Tetrahedron: Asymmetry

Year:

2005

Language:

english

File:

PDF, 212 KB

english, 2005

39

The effect of the substrate structure on the stereoselectivity in an asymmetric hydrogenation of unsaturated carboxylic acids over cinchonidine-modified palladium catalyst

Takashi Sugimura, Junya Watanabe, Tadashi Okuyama, Yuriko Nitta

Journal:

Tetrahedron: Asymmetry

Year:

2005

Language:

english

File:

PDF, 94 KB

english, 2005

40

[6+2] Cycloaddition of N-phenyltriazolinedione with cycloheptatriene derivatives mediated and stereodirected by a chiral 3-oxy substituent

Takashi Sugimura, Chun Young Im, Tadashi Okuyama

Journal:

Tetrahedron Letters

Year:

2004

Language:

english

File:

PDF, 258 KB

english, 2004

41

Regioselective ring opening of alkylidenecyclopropanone silyl acetals

Morifumi Fujita, Koji Fujiwara, Hiroshi Mouri, Yutaka Kazekami, Tadashi Okuyama

Journal:

Tetrahedron Letters

Year:

2004

Language:

english

File:

PDF, 273 KB

english, 2004

42

Solvent-dependent regioselectivity of hydrogen chloride-mediated ring opening of alkylidenecyclopropanone acetal

Morifumi Fujita, Shinji Hanagiri, Tadashi Okuyama

Journal:

Tetrahedron Letters

Year:

2006

Language:

english

File:

PDF, 95 KB

english, 2006

43

Enantiodifferentiating tetrahydrofuranylation of but-3-enyl carboxylates using optically active hypervalent iodine(III) reagents via a 1,3-dioxan-2-yl cation intermediate

Morifumi Fujita, Sakuro Okuno, Hee Jin Lee, Takashi Sugimura, Tadashi Okuyama

Journal:

Tetrahedron Letters

Year:

2007

Language:

english

File:

PDF, 115 KB

english, 2007

44

Stereoinduced cyclization of acyloxyalkenes using iodosylbenzene via a 1,3-dioxan-2-yl cation

Morifumi Fujita, Hiroshi Suzawa, Takashi Sugimura, Tadashi Okuyama

Journal:

Tetrahedron Letters

Year:

2008

Language:

english

File:

PDF, 116 KB

english, 2008

45

Direct determination of reaction heat in intramolecular hydrogen abstraction of excited 2-methylbenzophenone

Tadashi Suzuki, Ushio Okuyama, Teijiro Ichimura

Journal:

Chemical Physics Letters

Year:

1997

Language:

english

File:

PDF, 250 KB

english, 1997

46

Hydroxy direction of zinc carbenoid addition to a remote olefin. Analysis and improvement of 2,4-pentanediol tethered Furukawa cyclopropanation

Takashi Sugimura, Tohru Futagawa, Masato Yoshikawa, Toshifumi Katagiri, Ryoso Miyashige, Miki Mizuguchi, Shinya Nagano, Seiji Sugimori, Akira Tai, Takahiro Tei, Tadashi Okuyama

Journal:

Year:

2001

Language:

english

File:

PDF, 84 KB

english, 2001

47

Preparation of gem-dimethylcyclopropane-fused compounds through sigmatropic rearrangements. On/off-switching of the tautomerization of 3,4-homotropilidene by steric hindrance

Tohru Futagawa, Norio Nishiyama, Akira Tai, Tadashi Okuyama, Takashi Sugimura

Journal:

Year:

2002

Language:

english

File:

PDF, 298 KB

english, 2002

48

Cyclic dithio-carbenium ion salts and their conversion to ketene dithioacetals

Tadashi Okuyama

Journal:

Tetrahedron Letters

Year:

1982

Language:

english

File:

PDF, 126 KB

english, 1982

49

Acid-catalyzed reduction of a sulfenate ester by iodide

Tadashi Okuyama, Tomoki Nakamura, Takayuki Fueno

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 123 KB

english, 1990

50

Photosolvolysis of optically active 4-methyl-cyclohexylidenemethyl(aryl)iodonium tetrafluoroborate

Morifumi Fujita, Machiko Furutani, Tadashi Okuyama

Journal:

Tetrahedron Letters

Year:

2002

Language:

english

File:

PDF, 68 KB

english, 2002

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