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Featured researches published by Koichi Nakazawa.


Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1935

Synthese von Anhydroicaritol und Anhydroicaritintrimethyläther.: Untersuchungen über die Bestandteile von Epimedium Arten. (III. Mitteil.) Über die chemische Konstitution eines neuen Flavonglykosides von Epimedium macranthum Morr. et Decne. (III. Mitten.)@@@イカリサウ屬植物の成分研究 (第三報) -新フラボン配糖體「イカリイン」の化學的構造研究 (其三)

Saichiro Akai; Koichi Nakazawa


Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1955

Studies on the Application of Polyphosphoric Acid as a Condensing Agent. VIII: Acylation of Phenol by Means of Substituted Benzoic Acids@@@置換安息香酸による石炭酸のアシル化

Koichi Nakazawa; Shigeo Baba


Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1954

Studies on the Application of Polyphosphoric Acid as a Condensing Agent. II: Nuclear Acylation of Phenol and Anisole by Means of Carboxylic Acids. (Syntheses of 4-Hydroxy- and 4-Methoxyacylophenones)@@@カルボン酸による石炭酸及びアニソールの核アシル化反応 (4-ヒドロキシ-及び4-メトキシアシロフェノンの合成)

Koichi Nakazawa; Shin Matsuura; Kosuke Kusuda


Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1939

Untersuchungen über die γ-substituierten Resorcin-Derivate. I. Mitteil: Eine Synthese des γ-Resorcylaldehyds@@@γ-Resorcylaldehydの合成

Koichi Nakazawa


Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1935

Über diechemische Konstitution eines neuen Flavonglykosides “Icariin” von Epimedium macranthum Morr. et Deene. IV. Mitteil. Synthese von Icaritin und Icaritintrimethyläther: Untersuchungen über die Bestandteile von Epimedium Arten. IV. Mitteil@@@イカリサウ屬植物成分の研究 (第四報)

Saichiro Akai; Koichi Nakazawa


Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1955

Studies on the Application of Polyphosphoric Acid as a Condensing Agent. VII: Relationship between Chemical Constitution of Carboxylic Acids and their Nuclear Acylation of Phenol@@@カルボン酸の化学構造と石炭酸に対する核置換能力との関係

Koichi Nakazawa; Kosuke Kusuda


Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1955

Syntheses of Nuclear Substituted Flavonoids and Allied Compounds. VI: New Syntheses of 8-Methylacacetin-5, 7-dimethyl Ether and 8-(β-Carboxyethyl)-5, 7, 4′-trimethoxyflavone@@@8-メチルアカセチン-5,7-ジメチルエーテル及び8-(β-カルボキシエチル)-5,7,4´-トリメトキシフラボンの新合成法

Koichi Nakazawa; Shin Matsuura


Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1955

Ring Closure of Chalcones to Flavanones in the Presence of Concentrated Orthophosphoric Acid

Koichi Nakazawa; Shin Matsuura


Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1954

Studies on the Application of Polyphosphoric Acid as a Condensing Agent. IV: Nuclear Acylation of Catechol, Resorcinol, Resacylophenones, and their Methyl Ethers@@@カテコール, レゾルシン, レズアシロフエノン及びそれらのメチルエーテル類の核アシル化反応

Koichi Nakazawa


Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1954

Studies on the Application of Polyphosphoric Acid as a Condensation Agent. I: Acylation of Phenols by Carbonic Acids. (A New Method of Acylation of Phenols)@@@カルボン酸によるフェノールのアシル化 (フェノールの新アシル化法)

Koichi Nakazawa; Shin Matsuura

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Sueo Tatsuoka

Takeda Pharmaceutical Company

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