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Dive into the research topics where Y. Tomioka is active.

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Featured researches published by Y. Tomioka.


Chemical & Pharmaceutical Bulletin | 1983

Studies on Heterocyclic Enaminonitriles. III. Reactions of 2-Benzamido-3-cyano-4, 5-dihydrothiophenes with Amines

Kenji Yamagata; Y. Tomioka; Motoyoshi Yamazaki; Kanji Noda


Chemical & Pharmaceutical Bulletin | 1986

Studies on heterocyclic enaminonitriles. VII. Reactions of 2-amino-3-cyano-4,5-dihydrothiophenes with acetylenic esters.

Hisashi Matsunaga; Miki Sonoda; Y. Tomioka; Motoyoshi Yamazaki


Chemical & Pharmaceutical Bulletin | 1986

Studies on Heterocyclic Enaminonitriles. X. : Synthesis of 4-Amino-7-ethoxycarbonyl-5,6-dihydro-7H-pyrrolo-[2,3-d]pyrimidine-2-acetic Acid Derivatives

Miki Sonoda; Nobutaka Kouriyama; Y. Tomioka; Motoyoshi Yamazaki


ChemInform | 1986

Studies on Heterocyclic Enaminonitriles. Part 8. Reactions of 2-Benzamido(and 2-Acetamido)-3-cyano-4,5-dihydrothiophenes with Cyanomethylene Compounds.

Kenji Yamagata; Y. Tomioka; Motoyoshi Yamazaki


ChemInform | 1986

Studies on Heterocyclic Enaminonitriles. Part 10. Synthesis of 4-Amino- 7-ethoxycarbonyl-5,6-dihydro-7H-pyrrolo[2,3-d]pyrimidine-2-acetic Acid Derivatives.

M. Sonoda; N. Kuriyama; Y. Tomioka; Motoyoshi Yamazaki


ChemInform | 1986

Studies on Heterocyclic Enaminonitriles. Part 9. Ring Opening of 2-Amino-3-cyano-4,5-dihydrofurans by the Use of Benzoyl(and Acetyl) Chlorides.

Kenji Yamagata; Y. Tomioka; Motoyoshi Yamazaki


ChemInform | 1985

STUDIES ON HETEROCYCLIC ENAMINONITRILES. VI. SYNTHESIS OF 2-AMINO-3-CYANO-4,5-DIHYDROFURANS

T. Matsuda; Kenji Yamagata; Y. Tomioka; Motoyoshi Yamazaki


ChemInform | 1985

STUDIES ON HETEROCYCLIC ENAMINONITRILES. V. REACTIONS OF 2-AMINO-3-CYANO-1-ETHOXYCARBONYL-4,5-DIHYDROPYRROLES WITH ACETYLENIC ESTERS

H. Matsunaga; M. Sonoda; Y. Tomioka; Motoyoshi Yamazaki


ChemInform | 1983

STUDIES ON HETEROCYCLIC ENAMINONITRILES. II. SYNTHESIS AND AROMATIZATION OF 2-AMINO-3-CYANO-4,5-DIHYDROTHIOPHENES

Kenji Yamagata; Y. Tomioka; Motoyoshi Yamazaki; T. Matsuda; Kanji Noda


ChemInform | 1983

STUDIES ON HETEROCYCLIC ENAMINONITRILES. I. SYNTHESIS AND AROMATIZATION OF 2-AMINO-3-CYANO-1-ETHOXYCARBONYL-4,5-DIHYDROPYRROLES

M. Sonoda; N. Kuriyama; Y. Tomioka; Motoyoshi Yamazaki

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Kanji Noda

Hisamitsu Pharmaceutical Co.

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