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Dive into the research topics where Kenichi Yakushijin is active.

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Featured researches published by Kenichi Yakushijin.


Chemical & Pharmaceutical Bulletin | 1983

Studies on the Constituents of the Plants of Illicium Species. II. Structures of Phenolic Components

Kenichi Yakushijin; Tomoko Tohshima; Rika Suzuki; Hiroyuki Murata; Shengten Lu; Hiroshi Furukawa


Chemical & Pharmaceutical Bulletin | 1984

Studies on the Constituents of the Plants of Illicium Species. III. Structure Elucidations of Novel Phytoquinoids, Illicinones and Illifunones from Illicium tashiroi MAXIM. and I. arborescens HAYATA

Kenichi Yakushijin; Tomoko Tohshima; Eiji Kitagawa; Rika Suzuki; Junko Sekikawa; Takayuki Morishita; Hiroyuki Murata; Shengten Lu; Hiroshi Furukawa


Heterocycles | 1980

New Prenylflavanones from Hernandia nymphaefplia (Presl) Kubitzki

Hiroshi Furukawa; Kenichi Yakushijin; Kenichi Shibayama; Hiroyuki Murata


Chemical & Pharmaceutical Bulletin | 1982

Intramolecular Ring Formation of Phenyl Azide and Furan Moieties

Kenichi Yakushijin; Toyohisa Tsuruta; Hiroshi Furukawa


Heterocycles | 1980

Ring Transformation of 2-Furylcarbamates to 5-Hydroxy-3-pyrrolin-2-ones. Revised Structure of Jatropham

Hiroshi Furukawa; Kenichi Yakushijin; Masamichi Kozuka; Yoko Ito; Rika Suzuki


Journal of Heterocyclic Chemistry | 1979

Synthesis of 4H-furo[3,2-b]indole derivatives. III. Preparation of 4H-furo[3,2-b]indole-2-carboxylic acid derivatives†

Akira Tanaka; Kenichi Yakushijin; Shigetaka Yoshina


Journal of Heterocyclic Chemistry | 1977

Synthesis of 4H-furo[3,2-b]indole derivatives A new heterocyclic ring system†

Akira Tanaka; Kenichi Yakushijin; Shigetaka Yoshina


Phytochemistry | 1980

Hernagine, a new aporphine alkaloid, and 3-cyano-4- methoxypyridine from Hernandia nymphaefolia

Kenichi Yakushijin; S. Sugiyama; Y. Mori; Hiroyuki Murata; Hiroshi Furukawa


Chemical & Pharmaceutical Bulletin | 1984

Studies on the Constituents of the Plants of Illicium Species. IV. Thermal and Photochemical Reactions of Illicinone-A, a Novel Phytoquinoid from Illicium Plants

Kenichi Yakushijin; Hiroshi Furukawa; Andrew T. Mcphail


ChemInform | 1979

INTRAMOLECULAR RING FORMATION OF PHENYL AZIDE AND FURAN

Hiroshi Furukawa; Kenichi Yakushijin; Toyohisa Tsuruta

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