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Dive into the research topics where Koichi Yasumura is active.

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Featured researches published by Koichi Yasumura.


Chemical & Pharmaceutical Bulletin | 1986

Studies on peptides. CXLIV. Synthesis and immunological properties of formylmethionyl human adrenocorticotropin.

Koichi Yasumura; Kenji Okamoto; Hideki Adachi; Kenichi Akaji; Haruaki Yajima

Formylmethionyl human adrenocorticotropin (For-Met-hACTH) was synthesized by as-sembling 4 peptide fragments followed by deprotection with 1 M trifluoromethanesulfonic acid-thioanisole in trifluoroacetic acid. When the immunological cross reactivity against anti-ACTH sera was examined, some difference was observed between For-Met-hACTH and synthetic hACTH.


Chemical & Pharmaceutical Bulletin | 1984

Studies on peptides. CXXI. Nin-mesitylenesulfonyl-tryptophan, a new derivative for peptide synthesis.

Nobutaka Fujii; Shiroh Futaki; Koichi Yasumura; Haruaki Yajima


Journal of Medicinal Chemistry | 1986

Tuftsin analogues: synthesis, structure-function relationships, and implications for specificity of tuftsin's bioactivity.

Shlomo Dagan; Philip Gottlieb; Esther Tzehoval; Michael Feldman; Mati Fridkin; Koichi Yasumura; Kenji Okamoto; Haruaki Yajima


Chemical & Pharmaceutical Bulletin | 1984

Synthesis of the heptadecapeptide corresponding to the entire amino acid sequence of salmon melanin-concentrating hormone (MCH).

Kenji Okamoto; Koichi Yasumura; Kazuyoshi Fujitani; Yoshiaki Kiso; Hiroshi Kawauchi; Ichiro Kawazoe; Haruaki Yajima


Archive | 2008

Heterocyclic compound and pharmaceutical composition thereof

Takumi Sumida; Fujio Tabusa; Kazuo Sekiguchi; Takeshi Kodama; Koichi Yasumura; Yutaka Kojima; Masaaki Motoyama; Keisuke Miyajima; Kenji Yoshida; Keizo Kan; Makoto Sakamoto; Hideki Takasu; Takashi Nakagawa; Naoto Ohi; Yasuo Harada; Norikazu Hashimoto; Hironori Matsuyama; Masatoshi Iida; Shigekazu Fujita; Tae Fukushima


Journal of Medicinal Chemistry | 1995

Synthesis and biological evaluation of a series of new parenteral optically active 3-[[(N-alkylpyridinium-4'-yl)thio]methyl]-2-oxaisocephems

Hidetsugu Tsubouchi; Koichi Tsuji; Koichi Yasumura; Makoto Matsumoto; Takuya Shitsuta; Hiroshi Ishikawa


Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1976

[Synthesis of peptides related to tuftsin. II (author's transl)].

Koichi Yasumura; Kenji Okamoto; Shinichi Shimamura


Chemical & Pharmaceutical Bulletin | 1980

Synthesis of the Dodecapeptide Designated as Bovine γ-Melanotropin (γ-MSH)

Kenji Okamoto; Koichi Yasumura; Shinichi Shimamura; Shigetada Nakanishi; Shosaku Numa; Hiroo Imura; Akira Tanaka; Masuhisa Nakamura; Haruaki Yajima


Chemical & Pharmaceutical Bulletin | 1979

Synthesis of the Nonatriacontapeptide corresponding to the Entire Amino Acid Sequence of Dogfish Adrenocorticotropic Hormone (Squalus acantias)

Kenji Okamoto; Koichi Yasumura; Shinichi Shimamura; Masuhisa Nakamura; Akira Tanaka; Haruaki Yajima


Archive | 2012

Diaryl aether derivant as antineoplastic agent

Keizo Suga; Hideki Takasu; Hisami Higuchi; Makoto Sakamoto; Kenji Kodama; Yutaka Kojima; Takashi Otsuji; Takashi Nakagawa; Koichi Yasumura; Satoshi Yamada; Keisuke Miyajima; Kenji Onishi; Hironori Matsuyama; Takumi Sumita; Masaaki Motoyama

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