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Dive into the research topics where Taketsugu Seki is active.

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Featured researches published by Taketsugu Seki.


Bulletin of the Chemical Society of Japan | 1971

Heterocycles Structurally Influenced by a Side Chain. I. 3-Phenacyl-2(1H)-quinoxalinones and 3-Phenacyl-2H-1,4-benzoxazin-2-ones

Yasuo Iwanami; Taketsugu Seki; Takeshi Inagaki


Archive | 1995

1,4-dihydropyridine compound and pharmaceutical composition containing the same

Shigeyuki Tasaka; Teruhisa Miura; Akira Kiue; Taketsugu Seki; Tetsuro Sano; Mie Kamakura; Masakazu Fujita


Journal of Heterocyclic Chemistry | 1995

3-Phenacylidene-3,4-dihydro-1H-pyrido[2,3-b]pyrazin-2-ones and 2-Phenacylidene-1,2-dihydro-4H-pyrido[2,3-b]pyrazin-3-ones †

Taketsugu Seki; Hisanori Sakata; Yasuo Iwanami


Journal of Heterocyclic Chemistry | 1995

Reaction products of dialkyl acetylenedicarboxylates with 2,3‐diaminopyridine

Taketsugu Seki; Yasuo Iwanami


Bulletin of the Chemical Society of Japan | 1972

Heterocycles Structurally Influenced by a Side Chain. II. 7-Phenacyl-xanthopterins and 6-Phenacylisoxanthopterins

Yasuo Iwanami; Taketsugu Seki


Journal of Heterocyclic Chemistry | 1994

Intramolecularly hydrogen-bonded 3-phenacyl-lH-pyrido[3,4-b]-pyrazin-2-one and 2-Phenacyl-4H-pyrido[3,4-b]pyrazin-3-one†

Taketsugu Seki; Yasuo Iwanami


Journal of Heterocyclic Chemistry | 1995

Unambiguously confirmed structure of 2-phenacylidene-1,2-dihydro-4H-pyrido[2,3-b]pyrazin-3-one and 3-phenacylidene-3,4-dihydro-1H-pyrido[2,3-b]pyrazin-2-one

Taketsugu Seki; Hisanori Sakata; Yasuo Iwanami


Archive | 1998

Triazolo-1,4-diazepine compounds and medicinal composition containing the same

Masakazu Fujita; Taketsugu Seki; Haruaki Inada; Tetsuro Sano


Archive | 1995

1,4-dihydropyridine compound and medicinal composition containing the same

Shigeyuki Tasaka; Teruhisa Miura; Akira Kiue; Taketsugu Seki; Tetsuro Sano; Mie Kamakura; Masakazu Fujita


ChemInform | 2002

ChemInform Abstract: Synthesis and Bioactivities of Novel 4,5,6,7-Tetrahydrothieno[2,3-c]pyridines as Inhibitors of Tumor Necrosis Factor-α (TNF-α) Production.

Masakazu Fujita; Taketsugu Seki; Haruaki Inada; Naoko Ikeda

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