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Keiko Nasu

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Publication

Featured researches published by Keiko Nasu.

Journal of Heterocyclic Chemistry | 1981

Reaction of ethyl 3-ethoxymethylene-2,4-dioxovalerate and ethyl ethoxymethyleneoxaloacetate with 3-aminopyrazole analogs. Synthesis and chemistry of 3,6,7-trisubstituted pyrazolo[1,5-a]pyrimidine derivatives†

Takushi Kurihara; Keiko Nasu; Fumiko Ishimori; Tsutomu Tani

Chemical & Pharmaceutical Bulletin | 1980

Reactions of Ethyl 3-Ethoxymethylene-2, 4-dioxovalerate and Ethyl Ethoxymethyleneoxaloacetate with Indole Analogs

Takushi Kurihara; Tsutomu Tani; Hiromi Imai; Keiko Nasu

Chemical & Pharmaceutical Bulletin | 1982

Pyrolysis of Benzyl 2-Oxazolecarbamates and Benzyl 4-Alkylallophanates

Chiaki Tanaka; Keiko Nasu; Noriko Yamamoto; Megumi Shibata

Chemical & Pharmaceutical Bulletin | 1981

Ring Transformations of 6H-Cyclopropa [e] pyrazolo [1,5-a] pyrimidine. III. Synthesis and X-Ray Crystal Structure Determination of a 1-Pyrazol-3-ylpyrrole-2-carboxylic Acid

Takushi Kurihara; Tsutomu Tani; Keiko Nasu; Masatoshi Inoue; Toshimasa Ishida

Chemical & Pharmaceutical Bulletin | 1982

Synthesis and Reactions of Ethyl 6-Acetyl-2, 3-diphenylimidazo [1, 2-a] pyrimidine-5-carboxylate and Related Compounds

Takushi Kurihara; Keiko Nasu; Junko Byakuno; Tsutomu Tani

Journal of Heterocyclic Chemistry | 1982

Ring transformation of 6H-cyclopropa[e]pyrazolo[1,5-a]pyrimidine. IV (1). Reduction and reaction of 5a-acetyl-6a-ethoxycarbonyl-5a,6a-dihydro-6H-cyclopropa[e]pyrazolo[1,5-a]pyrimidine-3-carbonitriles with primary amines

Takushi Kurihara; Keiko Nasu; Tsutomu Tani

Heterocycles | 1983

Synthesis of 4H-pyrazolo[1,5-a][1,3]diazepine

Takushi Kurihara; Eiji Kawasaki; Keiko Nasu

Chemical & Pharmaceutical Bulletin | 1982

Trifluoroacetylation and Subsequent Pyrolysis of 2-Amino-2-oxazolines

Chiaki Tanaka; Keiko Nasu; Noriko Yamamoto; Megumi Shibata

Chemical & Pharmaceutical Bulletin | 1981

Ring transformations of 6H-cyclopropa(5a,6a)pyrazolo(1,5-a)pyrimidine. II. Reaction of 5a-acetyl-6a-carbethoxy-5a,6a-dihydro-6H-cyclopropa(5a,6a)pyrazolo(1,5-a)pyrimidine-3-carbonitriles with N-methylaniline.

Takushi Kurihara; Tsutomu Tani; Keiko Nasu

Journal of Heterocyclic Chemistry | 1985

Ring transformation of 6H‐cyclopropa[e]pyrazolo[1,5‐a]pyrimidine. VI. Substituent effect of 6‐substituted 5a‐acetyl‐6a‐ethoxycarbonyl‐5a,6a‐ dihydro‐6H‐cyclopropa[e]pyrazolo[1,5‐a]pyrimidine‐3‐carbonitriles

Takushi Kurihara; Eiji Kawasaki; Takamasa Morita; Keiko Nasu

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Takushi Kurihara

Osaka University of Pharmaceutical Sciences

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Masatoshi Inoue

Osaka University

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Toshimasa Ishida

Osaka University of Pharmaceutical Sciences

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Chiaki Tanaka

Kyushu University

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Noriko Yamamoto

Jilin University

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Mitsunobu Doi

Osaka University of Pharmaceutical Sciences

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