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Takaji Koyama

Okayama University

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Publication

Featured researches published by Takaji Koyama.

Chemical & Pharmaceutical Bulletin | 1975

Polycyclic N-hetero compounds. VI. Synthesis of 11,13,15-triazasteroidal compounds and correction of the structures of its intermediates.

Takaji Koyama; Hideki Hara; Takashi Hirota; Shinji Ohmori; Masatoshi Yamato

Chemical & Pharmaceutical Bulletin | 1977

Chemical structure and sweet taste of isocoumarin and related compounds. VII.

Masatoshi Yamato; Kuniko Hashigaki; Etsuko Honda; Koichi Sato; Takaji Koyama

Chemical & Pharmaceutical Bulletin | 1975

Polycyclic N-Hetero Compounds. V. A Novel Synthesis of Isoquinoline by the Vilsmeier Reaction of Phenylacetonitriles

Takaji Koyama; Takashi Hirota; Yurie Shinohara; Masatoshi Yamato; Shinji Ohmori

Chemical & Pharmaceutical Bulletin | 1978

Polycyclic N-hetero compounds. XVI. Reactions of benzyl ketones with formamide or acetamide.

Takashi Hirota; Takaji Koyama; Tetsuto Nanba; Masatoshi Yamato; Takafumi Matsumura

Chemical & Pharmaceutical Bulletin | 1977

Chemical Structure and Sweet Taste of Isocoumarins and Related Compounds. X. Syntheses of Sweet 5-Hydroxyflavanones and Related Dihydrochalcones

Masatoshi Yamato; Kuniko Hashigaki; Kumiko Mito; Takaji Koyama

Chemical & Pharmaceutical Bulletin | 1974

Polycyclic N-Hetero Compounds. II, Synthesis of 11,13,15-Triazasteroidal Skeleton

Takaji Koyama; Takashi Hirota; Tadaaki Yoshida; Hideki Hara; Shinji Ohmori

Chemical & Pharmaceutical Bulletin | 1977

Polycyclic N-hetero compounds. XV. The vilsmeier reaction of phenylacetonitriles. II.

Takashi Hirota; Takaji Koyama; Tetsuto Nanba; Masatoshi Yamato

Chemical & Pharmaceutical Bulletin | 1976

Polycyclic N-Hetero Compounds. XI. The Modified Vilsmeier Reaction of 4-Alkylpyrimidines

Takaji Koyama; Takashi Hirota; Chizuko Basho; Yasuko Watanabe; Yohko Kitauchi; Yoshiko Satoh; Shinji Ohmori; Masatoshi Yamato

Chemical & Pharmaceutical Bulletin | 1975

Polycyclic N-Hetero Compounds. VIII. Reactions of Ketones with Trisformylaminomethane

Takaji Koyama; Takashi Hirota; Chizuko Bashou; Yoshiko Satoh; Yasuko Watanabe; Sachiko Matsumoto; Yurie Shinohara; Shinji Ohmori; Masatoshi Yamato

Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1969

Reactions of Benzylcarbonyl Compounds with Formamide. II : A Novel Synthesis of Isoquinolines

Takaji Koyama; Takashi Hirota; Itsuya Itô; Mutsuko Toda; Masatoshi Yamato

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Masatoshi Yamato

Okayama University

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Takashi Hirota

Okayama University

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Shinji Ohmori

Okayama University

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Kuniko Hashigaki

Okayama University

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Koichi Sato

Okayama University

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Tetsuto Nanba

Okayama University

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Yurie Shinohara

Okayama University

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Tadataka Ishikawa

Okayama University

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Chizuko Basho

Okayama University

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Hideki Hara

Okayama University

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