Keiichi Nagasawa: search on Z-Library

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1

Assamicin I and II, Novel Triterpenoid Saponins with Insulin-Like Activity from Aesculus assamica Griff.

Takashi Sakurai, Toshio Nishimura, Noboru Otake, Yao Xinsheng, Keiichi Abe, Mitsuhiro Zeida, Hiromichi Nagasawa, Shohei Sakuda

Journal:

Bioorganic & Medicinal Chemistry Letters

Year:

2002

Language:

english

File:

PDF, 93 KB

english, 2002

2

A Cerium Metal-Mediated Coumarin Synthesis

Nagasawa, Kazuo, Ito, Keiichi

Journal:

Year:

1989

Language:

english

File:

PDF, 89 KB

english, 1989

3

A novel and efficient synthesis of 5-substituted and 5,6-disubstituted 4-methylcoumarins using organocerium(III) reagents

Kazuo Nagasawa, Hajime Kanbara, Kazuya Matsushita, Keiichi Ito

Journal:

Tetrahedron Letters

Year:

1985

Language:

english

File:

PDF, 250 KB

english, 1985

4

Synthesis and identification of proposed biosynthetic intermediates of saxitoxin in the cyanobacterium Anabaena circinalis (TA04) and the dinoflagellate Alexandrium tamarense (Axat-2)

Tsuchiya, Shigeki, Cho, Yuko, Konoki, Keiichi, Nagasawa, Kazuo, Oshima, Yasukatsu, Yotsu-Yamashita, Mari

Journal:

Organic & Biomolecular Chemistry

Year:

2014

Language:

english

File:

PDF, 620 KB

english, 2014

5

Mitral Regurgitation Disappearance after Cibenzoline Treatment in a Patient with Hypertrophic Obstructive Cardiomyopathy

INADA, Keiichi, KOMUKAI, Kimiaki, MORI, Chikara, NAGASAWA, Hidetaka, SHIBATA, Takahiro, MOCHIZUKI, Seibu

Journal:

Internal Medicine

Year:

2004

Language:

english

File:

PDF, 364 KB

english, 2004

6

t-Butyl Lithioacetate on ortho-Hydroxyphenones Providing 2-Methylchromones, an Easy Access to Khellin

Nagasawa, Kazuo, Kanbara, Hajime, Matsushita, Kazuya, Ito, Keiichi

Journal:

Year:

1988

Language:

english

File:

PDF, 104 KB

english, 1988

7

INHABITANT’S BEHAVIOR OF RECEIVING MEDICAL SERVICES IN UNDERPOPULATED AREAS

KATO, Gaku, SAKAMOTO, Keiichi, NAGASAWA, Yasushi, KAKEHI, Atsuo, IKUTA, Kyoko, YAMASHITA, Tetsuro

Journal:

AIJ Journal of Technology and Design

Year:

2011

File:

PDF, 1.61 MB

2011

8

Total Synthesis of Rishirilide B by Organocatalytic Oxidative Kinetic Resolution: Revision of Absolute Configuration of (+)-Rishirilide B

Odagi, Minami, Furukori, Kota, Takayama, Kan, Noguchi, Keiichi, Nagasawa, Kazuo

Journal:

Angewandte Chemie

Year:

2017

Language:

english

File:

PDF, 960 KB

english, 2017

9

Sustained-Release Erythropoietin Ameliorates Cardiac Function in Infarcted Rat - Heart Without Inducing Polycythemia

Lin, Xue, Fujita, Masatoshi, Kanemitsu, Naoki, Kimura, Yu, Tambara, Keiichi, Premaratne, Goditha U., Nagasawa, Atsushi, Ikeda, Tadashi, Tabata, Yasuhiko, Komeda, Masashi

Journal:

Circulation Journal

Year:

2007

Language:

english

File:

PDF, 308 KB

english, 2007

10

Fermentation Profiles and Utilization of Sugars of Bifidobacteria in Soymilk.

MATSUYAMA, Jun, HIRATA, Hideki, YAMAGISHI, Tsutomu, HAYASHI, Keiichi, HIRANO, Yuuko, KUWATA, Kiyomi, KIYOSAWA, ISAO, NAGASAWA, Taro

Journal:

NIPPON SHOKUHIN KOGYO GAKKAISHI

Year:

1992

File:

PDF, 366 KB

1992

11

Osteoclast-forming suppressing compounds, gargalols A, B, and C, from the edible mushroom Grifola gargal

Jing Wu, Jae-Hoon Choi, Miyuki Yoshida, Hirofumi Hirai, Etsuko Harada, Kikuko Masuda, Tomoyuki Koyama, Kazunaga Yazawa, Keiichi Noguchi, Kazuo Nagasawa, Hirokazu Kawagishi

Journal:

Year:

2011

Language:

english

File:

PDF, 454 KB

english, 2011

12

Linking Conformational Flexibility and Kinetics: Catalytic 1,4-Type Friedel–Crafts Reactions of Phenols Utilizing 1,3-Diamine-Tethered Guanidine/Bisthiourea Organocatalysts

Dr. Yoshihiro Sohtome, Bongki Shin, Natsuko Horitsugi, Prof. Dr. Keiichi Noguchi, Prof. Dr. Kazuo Nagasawa

Journal:

Chemistry – An Asian Journal

Year:

2011

Language:

english

File:

PDF, 608 KB

english, 2011

13

Dietary Supplement of G-Rutin Reduces Oxidative Damage in the Rodent Model

Funabiki, Ryuhei, Takeshita, Keiichi, Miura, Yutaka, Shibasato, Michio, Nagasawa, Takashi

Journal:

Journal of Agricultural and Food Chemistry

Year:

1999

Language:

english

File:

PDF, 114 KB

english, 1999

14

Formation of titanacyclobutenes with a spiro-bonded cyclopropane

Shono, Tomohiro, Nagasawa, Takehiro, Tsubouchi, Akira, Noguchi, Keiichi, Takeda, Takeshi

Journal:

Chemical Communications

Year:

2008

Language:

english

File:

PDF, 670 KB

english, 2008

15

EARLY CARCINOMA OF THE APPENDIX VERMIFORMIS

Shingo Oya, Kanji Miyata, Norihiro Yuasa, Eiji Takeuchi, Yasutomo Goto, Hideo Miyake, Keiichi Nagasawa, Yoichiro Kobayashi, Terutomo Ito, Masafumi Ito

Journal:

Digestive Endoscopy

Year:

2009

Language:

english

File:

PDF, 258 KB

english, 2009

16

Facile Deoxygenation of Sulfoxides by Using Metal/Chiloromethylsilanes

Nagasawa, Kazuo, Yoneta, Akemi, Umezawa, Toshiyuki, Ito, Keiichi

Journal:

Year:

1987

Language:

english

File:

PDF, 68 KB

english, 1987

17

Association of advanced glycation end products with sarcopenia and frailty in chronic kidney disease

Yabuuchi, Junko, Ueda, Seiji, Yamagishi, Sho-ichi, Nohara, Nao, Nagasawa, Hajime, Wakabayashi, Keiichi, Matsui, Takanori, Yuichiro, Higashimoto, Kadoguchi, Tomoyasu, Otsuka, Tomoyuki, Gohda, Tomohito,

Journal:

Scientific Reports

Year:

2020

File:

PDF, 7.23 MB

2020

18

The structure of rooster-comb dermatan sulfate. Characterization and quantitative determination of copolymeric, isomeric tetra- and hexa-saccharides

Kinzo Nagasawa, Akira Ogamo, Hisao Ichihara, Keiichi Yoshida

Journal:

Carbohydrate Research

Year:

1984

Language:

english

File:

PDF, 988 KB

english, 1984

19

1,8-Bis(4-chlorobenzoyl)-7-methoxynaphthalen-2-ol ethanol monosolvate

Mitsui, Ryosuke, Nagasawa, Atsushi, Noguchi, Keiichi, Okamoto, Akiko, Yonezawa, Noriyuki

Journal:

Acta Crystallographica Section E Structure Reports Online

Year:

2010

Language:

english

File:

PDF, 1.19 MB

english, 2010

20

The structure of rooster-comb dermatan sulfate. Fragmentation of the polysaccharide chains by chondroitinase AC-II digestion, and by periodate oxidation, followed by alkali cleavage

Kinzo Nagasawa, Akira Ogamo, Keiichi Yoshida

Journal:

Carbohydrate Research

Year:

1984

Language:

english

File:

PDF, 585 KB

english, 1984

21

Entropy-Controlled Catalytic Asymmetric 1,4-Type Friedel–Crafts Reaction of Phenols Using Conformationally Flexible Guanidine/Bisthiourea Organocatalyst

Dr. Yoshihiro Sohtome, Bongki Shin, Natsuko Horitsugi, Rika Takagi, Prof. Dr. Keiichi Noguchi, Prof. Dr. Kazuo Nagasawa

Journal:

Angewandte Chemie

Year:

2010

Language:

english

File:

PDF, 355 KB

english, 2010

22

Total Synthesis of Rishirilide B by Organocatalytic Oxidative Kinetic Resolution: Revision of Absolute Configuration of (+)-Rishirilide B

Odagi, Minami, Furukori, Kota, Takayama, Kan, Noguchi, Keiichi, Nagasawa, Kazuo

Journal:

Angewandte Chemie International Edition

Year:

2017

Language:

english

File:

PDF, 1.00 MB

english, 2017

23

[IEEE 2019 Symposium on VLSI Circuits - Kyoto, Japan (2019.6.9-2019.6.14)] 2019 Symposium on VLSI Circuits - A 65nm Silicon-on-Thin-Box (SOTB) Embedded 2T-MONOS Flash Achieving 0.22 pJ/bit Read Energy with 64 MHz Access for IoT Applications

Matsubara, Ken, Nagasawa, Tsutomu, Kaneda, Yoshinobu, Mitani, Hidenori, Sato, Hiroshi, Iwase, Takashi, Aoki, Yasunobu, Maekawa, Keiichi, Yamakoshi, Hideaki, Ito, Takashi, Kondo, Hiroyuki, Kono, Takash

Year:

2019

Language:

english

File:

PDF, 816 KB

english, 2019

24

4-Diazomethylcoumarins as Stable Diazoalkanes. Their Facile Isomerization into Benzopyrano[3,4-c]pyrazol-4(3H)-ones

Ito, Keiichi, Nagasawa, Kazuo, Maruyama, Junko

Journal:

Year:

1984

Language:

english

File:

PDF, 29 KB

english, 1984

25

Improvement of acquisition and analysis methods in multi-electrode array experiments with iPS cell-derived cardiomyocytes

Asakura, Keiichi, Hayashi, Seiji, Ojima, Atsuko, Taniguchi, Tomohiko, Miyamoto, Norimasa, Nakamori, Chiaki, Nagasawa, Chiho, Kitamura, Tetsuo, Osada, Tomoharu, Honda, Yayoi, Kasai, Chieko, Ando, Hiroy

Journal:

Journal of Pharmacological and Toxicological Methods

Year:

2015

Language:

english

File:

PDF, 2.21 MB

english, 2015

26

Parathyroid Hemorrhage Occurring after Administration of Cinacalcet in a Patient with Secondary Hyperparathyroidism

Nagasawa, Motonori, Ubara, Yoshifumi, Suwabe, Tatsuya, Yamanouchi, Masayuki, Hayami, Noriko, Sumida, Keiichi, Hattori, Yoshinari, Tsukamoto, Maki, Hiramatsu, Eriko, Hasegawa, Eiko, Hoshino, Junichi, S

Journal:

Internal Medicine

Year:

2012

Language:

english

File:

PDF, 926 KB

english, 2012

27

Synthesis of C12‐keto saxitoxin derivatives with unusual inhibitory activity against voltage‐gated sodium channels

Nagasawa, Kazuo, Adachi, Kanna, Yamada, Tomoshi, Oki, Mana, Ishizuka, Hayate, Orihara, Tatsuya, Hidaka, Masafumi, Konoki, Keiichi, Yotsu-Yamashita, Mari, Hirokawa, Takatsugu, Odagi, Minami, Shimada, N

Journal:

Chemistry - A European Journal

Year:

2019

File:

PDF, 3.10 MB

2019

28

Time-Resolved Crystallography of the Reaction Intermediate of Nitrile Hydratase: Revealing a Role for the Cysteinesulfenic Acid Ligand as a Catalytic Nucleophile

Yamanaka, Yasuaki, Kato, Yuki, Hashimoto, Koichi, Iida, Keisuke, Nagasawa, Kazuo, Nakayama, Hiroshi, Dohmae, Naoshi, Noguchi, Keiichi, Noguchi, Takumi, Yohda, Masafumi, Odaka, Masafumi

Journal:

Angewandte Chemie International Edition

Year:

2015

Language:

english

File:

PDF, 2.69 MB

english, 2015

29

Entropy-Controlled Catalytic Asymmetric 1,4-Type Friedel–Crafts Reaction of Phenols Using Conformationally Flexible Guanidine/Bisthiourea Organocatalyst

Dr. Yoshihiro Sohtome, Bongki Shin, Natsuko Horitsugi, Rika Takagi, Prof. Dr. Keiichi Noguchi, Prof. Dr. Kazuo Nagasawa

Journal:

Angewandte Chemie International Edition

Year:

2010

Language:

english

File:

PDF, 391 KB

english, 2010

30

ChemInform Abstract: Entropy-Controlled Catalytic Asymmetric 1,4-Type Friedel—Crafts Reaction of Phenols Using Conformationally Flexible Guanidine/Bisthiourea Organocatalyst.

Yoshihiro Sohtome, Bongki Shin, Natsuko Horitsugi, Rika Takagi, Keiichi Noguchi, Kazuo Nagasawa

Journal:

Year:

2011

File:

PDF, 49 KB

2011

31

Time-Resolved Crystallography of the Reaction Intermediate of Nitrile Hydratase: Revealing a Role for the Cysteinesulfenic Acid Ligand as a Catalytic Nucleophile

Yamanaka, Yasuaki, Kato, Yuki, Hashimoto, Koichi, Iida, Keisuke, Nagasawa, Kazuo, Nakayama, Hiroshi, Dohmae, Naoshi, Noguchi, Keiichi, Noguchi, Takumi, Yohda, Masafumi, Odaka, Masafumi

Journal:

Angewandte Chemie

Year:

2015

Language:

english

File:

PDF, 2.68 MB

english, 2015

32

Synthesis and Phase Structures of Novel π-Acceptor Discotic Liquid Crystalline Compounds Having a Pyrenedione Core

Mikio Yasutake, Takashi Fujihara, Akira Nagasawa, Keiichi Moriya, Takuji Hirose

Journal:

European Journal of Organic Chemistry

Year:

2008

Language:

english

File:

PDF, 580 KB

english, 2008

33

Image analysis of remesothelialization following chemical wounding of cultured human peritoneal mesothelial cells: The role of hyaluronan synthesis

Horiuchi, Takashi, Miyamoto, Keiichi, Miyamoto, Sunao, Fujita, Mika, Sano, Nami, Minamiyama, Kyoko, Fujimura, Yuichirou, Nagasawa, Koichi, Otsuka, Chie, Ohta, Yuji

Journal:

Kidney International

Year:

2003

Language:

english

File:

PDF, 609 KB

english, 2003

34

Synthesis and Identification of Key Biosynthetic Intermediates for the Formation of the Tricyclic Skeleton of Saxitoxin

Tsuchiya, Shigeki, Cho, Yuko, Yoshioka, Renpei, Konoki, Keiichi, Nagasawa, Kazuo, Oshima, Yasukatsu, Yotsu-Yamashita, Mari

Journal:

Angewandte Chemie International Edition

Year:

2017

Language:

english

File:

PDF, 1.05 MB

english, 2017

35

A STRATEGY OF TREATMENT FOR PERFORATED GASTRIC CANCER

WATANABE, Kenji, KATO, Takehito, SUZUKI, Masaomi, SHIBATA, Yoshihisa, YOSHIHARA, Motoi, NAGASAWA, Keiichi, KONISHI, Yukiko, KUNO, Hirofumi, TAGUCHI, Yoshiro, ONOE, Syunsuke, ANDO, Harumitsu

Journal:

Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association)

Year:

2009

File:

PDF, 358 KB

2009

36

New reduction of sulfoxides and sulfilimines to sulfides with zinc/1,4-dibromobutane. A proposal for a radical-forming electron transfer process.

Nagasawa, Kazuo, Yoneta, Akemi, Sugimoto, Hideki, Ito, Keiichi

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1987

Language:

english

File:

PDF, 424 KB

english, 1987

37

Activated Basic Alumina Promotes a Mild, Clean and High-Yield Racemization-Free Synthesis of t-Butyl Esters from Chiral Acid Bromides and t-Butyl Alcohol

Nagasawa, Kazuo, Ohhashi, Keiko, Yamashita, Asami, Ito, Keiichi

Journal:

Chemistry Letters

Year:

1994

File:

PDF, 423 KB

1994

38

Coumarin-Containing Chiral Discriminating Agents. VII. New Crystalline 1H-NMR Enantiomeric Excess Determination Reagent for Alcohols and Amines, (R)-(-)- and (S)-(+)-O-Coumarinylmandelic Acids

NAGASAWA, Kazuo, SETO, Noriko, HARA, Chikayo, ITO, Keiichi

Journal:

YAKUGAKU ZASSHI

Year:

1997

File:

PDF, 1.26 MB

1997

39

ChemInform Abstract: Assamicin I and II, Novel Triterpenoid Saponins with Insulin-Like Activity from Aesculus assamica Griff.

Takashi Sakurai, Toshio Nishimura, Noboru Otake, Yao Xinsheng, Keiichi Abe, Mitsuhiro Zeida, Hiromichi Nagasawa, Shohei Sakuda

Journal:

Year:

2002

File:

PDF, 29 KB

2002

40

Plastic surgical reconstruction of left main coronary artery

Yoshiharu Soga, Hitoshi Okabayashi, Ichiro Shimada, Sakae Enomoto, Keiichi Matsubayashi, Yuji Kamikawa, Yuhei Saitoh, Atsushi Nagasawa, Tohru Morimoto

Journal:

General Thoracic and Cardiovascular Surgery

Year:

1999

Language:

english

File:

PDF, 419 KB

english, 1999

41

Synthesis of a Tricyclic Bisguanidine Compound Structurally Related to Saxitoxin and its Identification in Paralytic Shellfish Toxin-Producing Microorganisms

Tsuchiya, Shigeki, Cho, Yuko, Konoki, Keiichi, Nagasawa, Kazuo, Oshima, Yasukatsu, Yotsu-Yamashita, Mari

Journal:

Chemistry - A European Journal

Year:

2015

Language:

english

File:

PDF, 689 KB

english, 2015

42

N-Coumarinyl-L-proline, a Novel Chiral Derivatizing Agent for 1H-NMR Determination of Enantiomeric Purities of Alcohols and Amines.

NAGASAWA, Kazuo, YAMASHITA, Asami, KATOH, Satoru, ITO, Keiichi, WADA, Kohji

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1995

File:

PDF, 421 KB

1995

43

An easy and absolute diagnosis for the coumarin/chromone discrimination by using oxygen-17 NMR.

NAGASAWA, Kazuo, HIGUCHI, Yukako, ITO, Keiichi, IMANARI, Mamoru, FUJII, Naoyuki

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1993

File:

PDF, 425 KB

1993

44

Prognosis of Patients on Continuous Ambulatory Peritoneal Dialysis (CAPD) for Over 10 Years

Toyohara, Takafumi, Ubara, Yoshifumi, Higa, Yasushi, Suwabe, Tatsuya, Hoshino, Junichi, Sumida, Keiichi, Hiramatsu, Rikako, Nagasawa, Motonori, Hasegawa, Eiko, Yamanouchi, Masayuki, Hayami, Noriko, Ma

Journal:

Internal Medicine

Year:

2011

Language:

english

File:

PDF, 111 KB

english, 2011

45

Biosynthetic route towards saxitoxin and shunt pathway

Tsuchiya, Shigeki, Cho, Yuko, Konoki, Keiichi, Nagasawa, Kazuo, Oshima, Yasukatsu, Yotsu-Yamashita, Mari

Journal:

Scientific Reports

Year:

2016

Language:

english

File:

PDF, 1.24 MB

english, 2016

46

Synthesis and Identification of Key Biosynthetic Intermediates for the Formation of the Tricyclic Skeleton of Saxitoxin

Tsuchiya, Shigeki, Cho, Yuko, Yoshioka, Renpei, Konoki, Keiichi, Nagasawa, Kazuo, Oshima, Yasukatsu, Yotsu-Yamashita, Mari

Journal:

Angewandte Chemie

Year:

2017

Language:

english

File:

PDF, 993 KB

english, 2017

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