Eiji Mizuta
Takeda Pharmaceutical Company
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Featured researches published by Eiji Mizuta.
FEBS Letters | 1989
Satoshi Endo; Hiroshi Inooka; Yoshihiro Ishibashi; Chieko Kitada; Eiji Mizuta; Masahiko Fujino
Endothelin; Vasoconstrictor peptide; Three‐dimensional structure; NMR, 1H; Distance geometry
Tetrahedron | 1968
Michihiko Ochiai; Eiji Mizuta; Yutaka Asahi; Katsura Morita
Abstract A new photo-induced methylation of pyrimidines and condensed pyrimidines by irradiating an acidic solution of the bases in methanol is described. The scope and limitation, effects of acids, the calculation of the reactivity indices by the MO method, effect of bases on ·CH2OH radical formation, and the reaction mechanism are discussed.
Chemical & Pharmaceutical Bulletin | 1976
Kenya Kawashima; Eiji Mizuta
Detailed inspection of the nuclear magnetic resonance spectra of 1, 1a, 6, 10b-tetrahydrodibenzo [b, f] cycloprop [d] azepines (1) in CDCl3 solutions has revealed that the state of conformational equilibrium falls into the following five categories according to the nitrogen substituent Z : 1) There exists a slow equilibrium between conformers I and IV, conformers II and III being either involved in a fast process or not involved at all. 2) Thre eexists a slow (much slower than category 1) equilibrium between conformers I and IV, conformers II and III being either involved in a fast process or not involved at all. 3) Conformer I is the sole one that is present, conformer III being either involved in a fast process or not involved at all. 4) Conformer IV (≡II) is the sole one that is present. 5) There exists a fast equilibrium between conformers I and IV, conformers II and III being either involved in a fast process or not involved at all.
Chemical & Pharmaceutical Bulletin | 1985
Eiji Mizuta; Atsuko Tsubotani
Tetrahedron | 1979
Mitsuko Asai; Eiji Mizuta; Motowo Izawa; Konomi Haibara; Toyokazu Kishi
Chemical & Pharmaceutical Bulletin | 1982
Mutsuo Kozuka; Tokunosuke Sawada; Eiji Mizuta; Fumiko Kasahara; Toshio Amano; Takeya Komiya; Minoru Goto
Chemical & Pharmaceutical Bulletin | 1982
Mutsuo Kozuka; Tokunosuke Sawada; Fumiko Kasahara; Eiji Mizuta; Toshio Amano; Takeya Komiya; Minoru Goto
International Journal of Peptide and Protein Research | 2009
Hiroshi Inooka; Satoshi Endo; Chieko Kitada; Eiji Mizuta; Masahiko Fujino
Chemical & Pharmaceutical Bulletin | 1984
Kazuhiko Ohta; Eiji Mizuta; Hisayoshi Okazaki; Toyokazu Kishi
Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1982
Hiroshi Otsuka; Shoji Fujioka; Takeya Komiya; Eiji Mizuta; Masayuki Takamoto