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Dive into the research topics where Hiroyasu Koyama is active.

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Featured researches published by Hiroyasu Koyama.


Archive | 1990

Nicotinic acid derivatives and pharmaceutical compositions comprising same

Katsutoshi Miura; Hiroyasu Koyama; Toshiji Sugai; Hiroaki Yamada; Einosuke Sakurai


Archive | 1990

Pyridinecarboxylic acid amide derivatives and pharmaceutical compositions comprising same

Katsutoshi Miura; Hiroyasu Koyama; Toshiji Sugai; Hiroaki Yamada; Einosuke Sakurai; Masato Horigome


Journal of the National Cancer Institute | 1984

Potentiation of Anticancer Agents by New Synthetic Isoprenoids. I. Inhibition of the Growth of Cultured Mammalian Cells

Kiyonobu Ikezaki; Teruhito Yamaguchi; Chizu Miyazaki; Hitoshi Ueda; Takao Kishiye; Yoshiyuki Tahara; Hiroyasu Koyama; Toshihiro Takahashi; Hideaki Fukawa; Sohtaro Komiyama; Michihiko Kuwano


Archive | 1971

Process for the manufacture of 3,4-disubstituted phenyl-l-alanines

Tomohisa Nagasaki; Masanori Sugita; Kunio Nakagawa; Hiroyasu Koyama


Archive | 1985

1,4-dihydropyridine derivatives, processes for their preparation and pharmaceutical compositions containing same

Hiroyasu Koyama; Yoshikuni Suzuki; Koichiro Hagihara


Journal of the National Cancer Institute | 1984

Potentiation of Anticancer Agents by New Synthetic Isoprenoids. II. Inhibition of the Growth of Transplantable Murine Tumors

Teruhito Yamaguchi; Kiyonobu Ikezaki; Takao Kishiye; Yoshiyuki Tahara; Hiroyasu Koyama; Toshihiro Takahashi; Hideaki Fukawa; Sohtaro Komiyama; Shin-ichi Akiyama; Michihiko Kuwano


Agricultural and biological chemistry | 1973

A Stereoselective Synthesis of Antimycinone A3 and Its Stereoisotners

Hiroyasu Koyama; Katsura Kogure; Kenji Mori; Masanao Matsui


Archive | 1988

Rhodanine derivatives, a process for their preparation, pharmaceutical compositions and their use

Hitoshi Inoue; Hiroyasu Koyama; Reiko Kubota; Hirohiko Komatsu


Archive | 1972

PROCESS FOR THE MANUFACTURE OF DERIVATIVES OF BETA-PHENYLPYRUVIC ACID

Hiroyasu Koyama; Kunio Nakagawa


Archive | 1985

Optically active isocarbostyril derivatives and a method of preparing the same

Toshihiro Takahashi; Noriyoshi Sueda; Masahiro Tsuji; Yoshiyuki Tahara; Hiroyasu Koyama; Yoshikuni Suzuki; Masao Nagase; Toshiji Sugai

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Hitoshi Ueda

Osaka University of Pharmaceutical Sciences

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