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Featured researches published by Tamio Nishimura.


Bunseki Kagaku | 1973

The determination of guanidine derivatives by the Voges-Proskauer reaction using α-naphthol and acetylbenzoyl

Tamio Nishimura; Toshio Imai; Masatoshi Kato; Takeo Suzuki

Roosらはアセチルベンゾイル(phenylpropane dione)が種々のグアニジン類とVoges-Proskauer反応により呈色し,ジアセチルと同様n-プロパノールやエチレングリコールの添加により呈色が増強することを報告しているが,最適定量条件の検討は行なわれていないので著者らはこのα-ジケトンを用いクレアチン,1-メチル-1-ベンジルグアニジン,グアニジン,グリコシアミンおよびアルギニンの定量条件を検討した.反応溶媒として8種類のアルコール類の呈色強度に及ぼす影響を検討したところ第1アルコールは置換グアニジンの呈色を妨害するのに反し,第2,第3アルコールは1-メチル-1-ベンジルグアニジン以外のグアニジン誘導体の呈色を増強し,特にtert-ブタノールを終濃度40%に用いるとその呈色強度が1.3~2.9倍増強されることがわかった.測定感度はそれぞれ2.5μMであり,変動係数は0.3~1.0%であった.また,第1アルコールの呈色妨害機構について論じた.


Journal of Organic Chemistry | 1979

Reaction of guanidines with .alpha.-diketones. Syntheses of 4,5-disubstituted-2-aminoimidazoles and 2,6-unsymmetrically substituted imidazo[4,5-d]imidazoles

Tamio Nishimura; Koji. Kitajima


Chemical & Pharmaceutical Bulletin | 1974

Antiviral Compounds. IV. Synthesis and Anti-influenza Virus Activity of Amidinohydrazones

Tamio Nishimura; Chiji Yamazaki; Hiroshige Toku; Shin Yoshii; Katsushige Hasegawa; Mitsuji Saito; Daizo Nagaki


Archive | 1978

Ryrazolyl pyrimidine derivative, and agricultural and horticultural fungicides

Kuniomi Matsumoto; Yoshiko Miyamoto; Takeshi Morita; Tamio Nishimura; Hiroshi Ooyama; Tetsuo Watanabe; Hiroshi Yamamura


Journal of Heterocyclic Chemistry | 1975

A NOVEL SYNTHESIS OF 2-(DISUBSTITUTED AMINO)-5(4)PHENYLIMIDAZOLES

Tamio Nishimura; Katsuo Nakano; Shinji Shibamoto; Koji. Kitajima


Archive | 1978

Anti-inflammatory agent comprising guanidine derivative

Yoshinobu Hashimoto; Keiji Komoriya; Seiji Kurozumi; Tamio Nishimura; Hiroshige Toku


Journal of Organic Chemistry | 1976

Novel synthesis of imidazole derivatives from 1-phenyl-1,2-propanedione and methylguanidine

Tamio Nishimura; Koji. Kitajima


Bulletin of the Chemical Society of Japan | 1967

Antidotes for Organophosphate Poisoning. I. Synthesis of 1-(Quaternary ammonium)-3-(hydroxyiminomethylpyridinium)propane Dibromides

Tamio Nishimura; Chiji Yamazaki; Takako Ishiura


Archive | 1978

Novel imidazole derivative, its mineral acid salt, and their preparation

Yoshinobu Hashimoto; Atsuji Kitajima; Keiji Komoriya; Seiji Kurozumi; Tamio Nishimura


Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1976

[Antiviral compounds. X. Synthesis and anti-influenza virus activity of 2-substituted 5-alkyl-6-hydroxy-4-methylpyrimidines (author's transl)].

Tamio Nishimura; Yoshiko Miyamoto; Harumi Fukuyasu

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