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1

Z -Selective Horner−Wadsworth−Emmons Reaction of Ethyl (Diarylphosphono)acetates Using Sodium Iodide and DBU

Ando, Kaori, Oishi, Tohru, Hirama, Masahiro, Ohno, Hiroaki, Ibuka, Toshiro

Journal:

Journal of Organic Chemistry

Year:

2000

Language:

english

File:

PDF, 64 KB

english, 2000

2

Detailed LC-MS/MS Analysis of Ciguatoxins Revealing Distinct Regional and Species Characteristics in Fish and Causative Alga from the Pacific

Yogi, Kentaro, Oshiro, Naomasa, Inafuku, Yasuo, Hirama, Masahiro, Yasumoto, Takeshi

Journal:

Analytical Chemistry

Year:

2011

Language:

english

File:

PDF, 3.12 MB

english, 2011

3

Enantio-Controlled Synthesis of the AB Ring Moiety of Ciguatoxin

Oguri, Hiroki, Hishiyama, Shojiro, Oishi, Tohru, Hirama, Masahiro

Journal:

Year:

1995

File:

PDF, 224 KB

1995

4

Total Synthesis of Limonin

Dr. Shuji Yamashita, Dr. Akito Naruko, Yuki Nakazawa, Dr. Le Zhao, Prof. Dr. Yujiro Hayashi, Prof. Dr. Masahiro Hirama

Journal:

Angewandte Chemie International Edition

Year:

2015

Language:

english

File:

PDF, 750 KB

english, 2015

5

Reinvestigation of the Diastereoselectivity of Kinetic Aldol Condensation of Cyclohexanone Lithium Enolate with Benzaldehyde

Hirama, Masahiro, Noda, Takeshi, Takeishi, Shoichi, Itô, Shô

Journal:

Bulletin of the Chemical Society of Japan

Year:

1988

File:

PDF, 320 KB

1988

6

Evolution of a Practical Total Synthesis of Ciguatoxin CTX3C

Masayuki Inoue, Masahiro Hirama

Journal:

Year:

2005

File:

PDF, 8 KB

2005

7

Enantioselective synthesis of the AB ring fragment of gambiertoxin 4B. Implication for the absolute configuration of gambiertoxin 4B and ciguatoxin

Toshio Suzuki, Ohki Sato, Masahiro Hirama, Yoshinori Yamamoto, Michio Murata, Takeshi Yasumoto, Nobuyuki Harada

Journal:

Tetrahedron Letters

Year:

1991

Language:

english

File:

PDF, 163 KB

english, 1991

8

Stereoselective synthesis of the left wing of Caribbean ciguatoxin

Shuji Yamashita, Ryohei Uematsu, Masahiro Hirama

Journal:

Year:

2011

Language:

english

File:

PDF, 492 KB

english, 2011

9

A study on mechanisms of toxic actions of ciguatoxins: existence of functional relationship between CTX3C and charged residues of voltage sensors in Nav1.4 sodium channel

Kaoru Yamaoka, Masayuki Inoue, Masahiro Hirama

Journal:

Forensic Toxicology

Year:

2011

Language:

english

File:

PDF, 327 KB

english, 2011

10

Total synthesis of 6-deoxyerythronolide B

Masamune, Satoru, Hirama, Masahiro, Mori, Sachio, Ali, Sk. Asrof, Garvey, David S.

Journal:

Journal of the American Chemical Society

Year:

1981

Language:

english

File:

PDF, 407 KB

english, 1981

11

Development of a monoclonal antibody against the left wing of ciguatoxin CTX1B: Thiol strategy and detection using a sandwich ELISA

Takeshi Tsumuraya, Katsutoshi Takeuchi, Shuji Yamashita, Ikuo Fujii, Masahiro Hirama

Journal:

Year:

2012

Language:

english

File:

PDF, 584 KB

english, 2012

12

Asymmetric Michael Addition of Malonate Anions to Prochiral Acceptors Catalyzed by l -Proline Rubidium Salt

Yamaguchi, Masahiko, Shiraishi, Tai, Hirama, Masahiro

Journal:

Journal of Organic Chemistry

Year:

1996

Language:

english

File:

PDF, 500 KB

english, 1996

13

α-Alkenylation of Ketones with 1-Alkynes

Hayashi, Akio, Yamaguchi, Masahiko, Hirama, Masahiro

Journal:

Year:

1995

File:

PDF, 159 KB

1995

14

SbF5-Promoted Addition of Aldehydes to Alkynes

Hayashi, Akio, Yamaguchi, Masahiko, Hirama, Masahiro

Journal:

Year:

1995

File:

PDF, 101 KB

1995

15

Photochemische Cycloaromatisierung nichtbenzoider Endiine

Toshio Kaneko, Miki Takahashi, Masahiro Hirama

Journal:

Angewandte Chemie

Year:

1999

Language:

german

File:

PDF, 94 KB

german, 1999

16

Photochemical Cycloaromatization of Non-Benzenoid Enediynes

Toshio Kaneko, Miki Takahashi, Masahiro Hirama

Journal:

Angewandte Chemie International Edition

Year:

1999

Language:

english

File:

PDF, 74 KB

english, 1999

17

A Three-Step Synthesis of Halomon

Takayuki Sotokawa, Takeshi Noda, Sun Pi, Masahiro Hirama

Journal:

Angewandte Chemie

Year:

2000

Language:

english

File:

PDF, 67 KB

english, 2000

18

A Direct and Efficient α-Selective Glycosylation Protocol for the Kedarcidin Sugar, L-Mycarose: AgPF6 as a Remarkable Activator of 2-Deoxythioglycosides

Martin J. Lear, Fumihiko Yoshimura, Masahiro Hirama

Journal:

Angewandte Chemie

Year:

2001

Language:

english

File:

PDF, 103 KB

english, 2001

19

A Three-Step Synthesis of Halomon

Takayuki Sotokawa, Takeshi Noda, Sun Pi, Masahiro Hirama

Journal:

Angewandte Chemie International Edition

Year:

2000

Language:

english

File:

PDF, 67 KB

english, 2000

20

A Direct and Efficient α-Selective Glycosylation Protocol for the Kedarcidin Sugar, L-Mycarose: AgPF6 as a Remarkable Activator of 2-Deoxythioglycosides

Martin J. Lear, Fumihiko Yoshimura, Masahiro Hirama

Journal:

Angewandte Chemie International Edition

Year:

2001

Language:

english

File:

PDF, 103 KB

english, 2001

21

Eine katalytische enantioselektive Michael-Addition eines Malonats an prochirale α,β-ungesättigte Aldehyde und Ketone

Prof. Dr. Masahiko Yamaguchi, Tai Shiraishi, Prof. Dr. Masahiro Hirama

Journal:

Angewandte Chemie

Year:

1993

Language:

german

File:

PDF, 379 KB

german, 1993

22

Total Synthesis of TMC-95A

Masayuki Inoue, Hayato Sakazaki, Hidetomo Furuyama, Masahiro Hirama

Journal:

Angewandte Chemie

Year:

2003

Language:

english

File:

PDF, 129 KB

english, 2003

23

Spin Trapping of 13C-Labeled p-Benzynes Generated by Masamune–Bergman Cyclization of Bicyclic Nine-Membered Enediynes

Toyonobu Usuki, Takashi Mita, Martin J. Lear, Parthasarathi Das, Fumihiko Yoshimura, Masayuki Inoue, Masahiro Hirama, Kimio Akiyama, Shozo Tero-Kubota

Journal:

Angewandte Chemie

Year:

2004

Language:

english

File:

PDF, 237 KB

english, 2004

24

Synthesis of the C-1027 Chromophore Framework through Atropselective Macrolactonization

Masayuki Inoue, Takeo Sasaki, Suguru Hatano, Masahiro Hirama

Journal:

Angewandte Chemie

Year:

2004

Language:

english

File:

PDF, 319 KB

english, 2004

25

A Formal Total Synthesis of (+)-Pinnatoxin A

Satoshi Sakamoto, Hayato Sakazaki, Koji Hagiwara, Kei Kamada, Kento Ishii, Takeshi Noda, Masayuki Inoue, Masahiro Hirama

Journal:

Angewandte Chemie

Year:

2004

Language:

english

File:

PDF, 361 KB

english, 2004

26

Asymmetric Total Synthesis of (−)-Merrilactone A: Use of a Bulky Protecting Group as Long-Range Stereocontrolling Element

Masayuki Inoue, Takaaki Sato, Masahiro Hirama

Journal:

Angewandte Chemie

Year:

2006

Language:

english

File:

PDF, 203 KB

english, 2006

27

Total Synthesis of the C-1027 Chromophore Core: Extremely Facile Enediyne Formation through SmI2-Mediated 1,2-Elimination

Masayuki Inoue, Isao Ohashi, Teruko Kawaguchi, Masahiro Hirama

Journal:

Angewandte Chemie

Year:

2008

Language:

english

File:

PDF, 374 KB

english, 2008

28

Critical Importance of the Nine-Membered F Ring of Ciguatoxin for Potent Bioactivity: Total Synthesis and Biological Evaluation of F-Ring-Modified Analogues

Masayuki Inoue, Nayoung Lee, Keisuke Miyazaki, Toyonobu Usuki, Shigeru Matsuoka, Masahiro Hirama

Journal:

Angewandte Chemie

Year:

2008

Language:

english

File:

PDF, 541 KB

english, 2008

29

Total Synthesis of a Protected Aglycon of the Kedarcidin Chromophore

Kouki Ogawa, Yasuhito Koyama, Isao Ohashi, Itaru Sato, Masahiro Hirama

Journal:

Angewandte Chemie

Year:

2009

Language:

english

File:

PDF, 307 KB

english, 2009

30

A Catalytic Enantioselective Michael Addition of a Simple Malonate to Prochiral α,β-Unsaturated Ketoses and Aldehydes

Prof. Dr. Masahiko Yamaguchi, Tai Shiraishi, Prof. Dr. Masahiro Hirama

Journal:

Angewandte Chemie International Edition

Year:

1993

Language:

english

File:

PDF, 373 KB

english, 1993

31

Friedel–Crafts β-Silylvinylations

Prof. Dr. Masahiko Yamaguchi, Yoshiyuki Kido, Dr. Akio Hayashi, Prof. Dr. Masahiro Hirama

Journal:

Angewandte Chemie International Edition

Year:

1997

Language:

english

File:

PDF, 352 KB

english, 1997

32

Total Synthesis of TMC-95A

Masayuki Inoue, Hayato Sakazaki, Hidetomo Furuyama, Masahiro Hirama

Journal:

Angewandte Chemie International Edition

Year:

2003

Language:

english

File:

PDF, 130 KB

english, 2003

33

Spin Trapping of 13C-Labeled p-Benzynes Generated by Masamune–Bergman Cyclization of Bicyclic Nine-Membered Enediynes

Toyonobu Usuki, Takashi Mita, Martin J. Lear, Parthasarathi Das, Fumihiko Yoshimura, Masayuki Inoue, Masahiro Hirama, Kimio Akiyama, Shozo Tero-Kubota

Journal:

Angewandte Chemie International Edition

Year:

2004

Language:

english

File:

PDF, 238 KB

english, 2004

34

Synthesis of the C-1027 Chromophore Framework through Atropselective Macrolactonization

Masayuki Inoue, Takeo Sasaki, Suguru Hatano, Masahiro Hirama

Journal:

Angewandte Chemie International Edition

Year:

2004

Language:

english

File:

PDF, 320 KB

english, 2004

35

A Formal Total Synthesis of (+)-Pinnatoxin A

Satoshi Sakamoto, Hayato Sakazaki, Koji Hagiwara, Kei Kamada, Kento Ishii, Takeshi Noda, Masayuki Inoue, Masahiro Hirama

Journal:

Angewandte Chemie International Edition

Year:

2004

Language:

english

File:

PDF, 362 KB

english, 2004

36

Asymmetric Total Synthesis of (−)-Merrilactone A: Use of a Bulky Protecting Group as Long-Range Stereocontrolling Element

Masayuki Inoue, Takaaki Sato, Masahiro Hirama

Journal:

Angewandte Chemie International Edition

Year:

2006

Language:

english

File:

PDF, 204 KB

english, 2006

37

Total Synthesis of the C-1027 Chromophore Core: Extremely Facile Enediyne Formation through SmI2-Mediated 1,2-Elimination

Masayuki Inoue, Isao Ohashi, Teruko Kawaguchi, Masahiro Hirama

Journal:

Angewandte Chemie International Edition

Year:

2008

Language:

english

File:

PDF, 374 KB

english, 2008

38

Critical Importance of the Nine-Membered F Ring of Ciguatoxin for Potent Bioactivity: Total Synthesis and Biological Evaluation of F-Ring-Modified Analogues

Masayuki Inoue, Nayoung Lee, Keisuke Miyazaki, Toyonobu Usuki, Shigeru Matsuoka, Masahiro Hirama

Journal:

Angewandte Chemie International Edition

Year:

2008

Language:

english

File:

PDF, 541 KB

english, 2008

39

Total Synthesis of a Protected Aglycon of the Kedarcidin Chromophore

Kouki Ogawa, Yasuhito Koyama, Isao Ohashi, Itaru Sato, Masahiro Hirama

Journal:

Angewandte Chemie International Edition

Year:

2009

Language:

english

File:

PDF, 307 KB

english, 2009

40

ChemInform Abstract: ortho-Vinylation Reaction of Phenols with Ethyne.

Masahiko Yamaguchi, Mieko Arisawa, Kenji Omata, Kuninobu Kabuto, Masahiro Hirama, Tadafumi Uchimaru

Journal:

Year:

1999

File:

PDF, 39 KB

1999

41

ChemInform Abstract: Synthetic Study of Zoanthamine Alkaloids: The C-Ring Model Possessing Three Consecutive Quaternary Carbons.

Go Hirai, Hiroki Oguri, Masahiro Hirama

Journal:

Year:

1999

File:

PDF, 34 KB

1999

42

ChemInform Abstract: Synthetic Study of Pinnatoxin A: Intramolecular Alkylation Approach to the G-Ring.

Aiko Nitta, Akihiro Ishiwata, Takeshi Noda, Masahiro Hirama

Journal:

Year:

1999

File:

PDF, 24 KB

1999

43

ChemInform Abstract: Synthetic Study of Pinnatoxin A: Intramolecular Diels—Alder Approach to the AG-Ring.

Akihiro Ishiwata, Satoshi Sakamoto, Takeshi Noda, Masahiro Hirama

Journal:

Year:

1999

File:

PDF, 24 KB

1999

44

ChemInform Abstract: Convenient Route to Derivatives of the 2-Deoxysugar Subunits of the Kedarcidin Chromophore: L-Mycarose and L-Kedarosamine.

Martin J. Lear, Masahiro Hirama

Journal:

Year:

1999

File:

PDF, 28 KB

1999

45

ChemInform Abstract: Enantioselective Synthesis of the Medium Ring Ethers, Tetrahydrooxepin, Oxocane and Hexahydrooxonin of Ciguatoxin. Extensive Ring-Expansion and Chemoenzymatic Desymmetrization Strategy.

Tohru Oishi, Megumi Maruyama, Mitsuru Shoji, Kenji Maeda, Naomi Kumahara, Shin-ichiro Tanaka, Masahiro Hirama

Journal:

Year:

1999

File:

PDF, 25 KB

1999

46

ChemInform Abstract: Convergent Synthesis of the ABCDE Ring Framework of Ciguatoxin.

Kenji Maeda, Tohru Oishi, Hiroki Oguri, Masahiro Hirama

Journal:

Year:

1999

File:

PDF, 33 KB

1999

47

ChemInform Abstract: Synthetic Study of C-1027 Chromophore: Enantioselective Synthesis of β-Tyrosine Moiety and Effective Aryl Ether Formation.

Itaru Sato, Tsukasa Kikuchi, Masahiro Hirama

Journal:

Year:

1999

File:

PDF, 34 KB

1999

48

ChemInform Abstract: Synthetic Study of C-1027 Chromophore. Highly Stereoselective Glycosylation.

Itaru Sato, Yuri Akahori, Takeo Sasaki, Tsukasa Kikuchi, Masahiro Hirama

Journal:

Year:

2000

File:

PDF, 31 KB

2000

49

ChemInform Abstract: Convergent Synthesis of the IJKLM Ring Fragment of Ciguatoxin CTX3C.

Tohru Oishi, Yoko Nagumo, Mitsuru Shoji, Jean-Yves Le Brazidec, Hisatoshi Uehara, Masahiro Hirama

Journal:

Year:

2000

File:

PDF, 37 KB

2000

50

ChemInform Abstract: The Absolute Configuration and Total Synthesis of Korormicin.

Hisatoshi Uehara, Tohru Oishi, Kazuhiro Yoshikawa, Kenichi Mochida, Masahiro Hirama

Journal:

Year:

2000

File:

PDF, 26 KB

2000