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Dive into the research topics where Katsumi Yokoi is active.

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Featured researches published by Katsumi Yokoi.


Agricultural and biological chemistry | 1983

Novel Sesquiterpene Alcohol Prepared from the Oxidation of α-Longipinene with Lead Tetraacetate

Hajime Iwamuro; Katsumi Yokoi; Yoshiharu Matsubara

On etudie la structure du nouveau compose obtenu par RMN du 13 C et on propose un mecanisme de formation


Agricultural and biological chemistry | 2014

Structure and hypotensive effect of flavonoid glycosides in Citrus unshiu peelings

Yoshiharu Matsubara; Hiroyasu Kumamoto; Yoshitomi Iizuka; Tetsuo Murakami; Kozo Okamoto; Hideo Miyake; Katsumi Yokoi


Agricultural and biological chemistry | 1986

Structure and Hypotensive Effect of Flavonoid Glycosides in Orange (Citrus sinensis OSBECK) Peelings

Hiroyasu Kumamoto; Yoshiharu Matsubara; Yoshitomi Iizuka; Kozo Okamoto; Katsumi Yokoi


Bulletin of the Chemical Society of Japan | 1987

Autoxidation of Guaiazulene and 4,6,8-Trimethylazulene in Polar Aprotic Solvent: Structural Proof for Products

Yoshiharu Matsubara; Shin-ichi Takekuma; Katsumi Yokoi; Hiroshi Yamamoto; Tetsuo Nozoe


Agricultural and biological chemistry | 1985

Structure and Hypotensive Effect of Flavonoid Glycosides in Kinkan (Fortunella japonica) Peelings

Hiroyasu Kumamoto; Yoshiharu Matsubara; Yoshitomi Iizuka; Kozo Okamoto; Katsumi Yokoi


Bulletin of the Agricultural Chemical Society of Japan | 1985

Structure and hypotensive effect of flavonoid glycosides in lemon peelings. Part II.

Hiroyasu Kumamoto; Yoshiharu Matsubara; Yoshitomi Iizuka; Kozo Okamoto; Katsumi Yokoi


Agricultural and biological chemistry | 1985

Structure and Hypotensive Effect of Flavonoid Glycosides in Sudachi Peelings II

Hiroyasu Kumamoto; Yoshiharu Matsubara; Yoshitomi Iizuka; Kozo Okamoto; Katsumi Yokoi


Journal of Japan Oil Chemists' Society | 1986

Structures and Hypotensive Effect of Flavonoid Glycosides in Unshiu Peeling. II.

Hiroyasu Kumamoto; Yoshiharu Matsubara; Yoshitomi Iizuka; Kozo Okamoto; Katsumi Yokoi


Bulletin of the Agricultural Chemical Society of Japan | 1985

Structure and hypotensive effect of flavonoid glycosides in yuzu (Citrus junos Sieb.) peelings.

Hiroyasu Kumamoto; Yoshiharu Matsubara; Yoshitomi Iizuka; Kozo Okamoto; Katsumi Yokoi


Japanese Heart Journal | 1980

Isolation and Identification of Hypotensive Substances in Chlorella Extract

Yoshitomi Iizuka; Tetsuo Murakami; Yoshiharu Matsubara; Katsumi Yokoi; Kozo Okamoto; Hideo Miyake; Susumu Honda; Kazuaki Kakehi

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