Yoshiko Murakami
Mukogawa Women's University
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Featured researches published by Yoshiko Murakami.
Phytochemistry | 1980
Jun-ichi Kunitomo; Yoshiko Murakami; Megumi Oshikata; Tetsuro Shingu; Michinori Akasu; Sheng-Teh Lu; Ih-Sheng Chen
Abstract Five new alkaloids, dehydrocrebanine, 4,5-dioxodehydrocrebanine, stesakine, dehydrostesakine, bisaknadinine and four known alkaloids, lirodenine, lanuginosine, 1-tetrahydropalmatine, d-isocorydine with a few alkaloids of unknown structure were newly isolated from Stephania sasakii. The structures of the new alkaloids were determined from spectral data and chemical evidence.
Heterocycles | 2004
Noritaka Abe; Eri Hashimoto; Hiroyuki Fujii; Yoshiko Murakami; Shoji Tagashira; Akikazu Kakehi
Reaction of 2-chloro-1-azaazulenes with 2-pyridyllithium followed by dehydrogenation by chloranil gave 8-(2-pyridyl) -1-azaazulene (2). Formation of metal complexes (M = Cu, Fe, Pd) of 2 was achieved. The reaction of 2 with Cu(1) gave 1:1-complex (3) and 2:1-complex (4). Complex (3) was deduced to have a polymeric chain structure with the copper center is +1. The ESR spectrum study of 4 showed that the copper center is +2. The structure of 4 was decided by X-Ray structural analysis and it is shown that the complex takes a trigonal bi-pyramidal structure.
Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1980
Jun-ichi Kunitomo; Yoshiko Murakami; Michinori Akasu
Heterocycles | 2009
Tomoyuki Ariyoshi; Tomonori Noda; Satomi Watarai; Shoji Tagashira; Yoshiko Murakami; Hiroyuki Fujii; Noritaka Abe
Solvent Extraction Research and Development-japan | 2008
Yoshiko Murakami; Yu Dobashi; Yoshiaki Sasaki; Isamu Fujiwara; Noritaka Abe; Shoji Tagashira
Chemical & Pharmaceutical Bulletin | 1981
Jun-ichi Kunitomo; Megumi Oshikata; Yoshiko Murakami
Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1981
Jun-ichi Kunitomo; Yoshiko Murakami; Megumi Oshikata; Tetsuro Shingu; Sheng-Teh Lu; Ih-Sheng Chen; Michinori Akasu
Chemical & Pharmaceutical Bulletin | 1985
Jun-ichi Kunitomo; Yoshiko Murakami; Megumi Oshikata; Michinori Akasu; Kazuya Kodama; Naohito Takeda; Kenichi Harada; Makoto Suzuki; Akira Tatematsu; Eri Kawanabe; Hisashi Ishii
Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1979
Jun-ichi Kunitomo; Yoshiko Murakami; Machiko Sugisakon
Chemical & Pharmaceutical Bulletin | 1982
Jun-ichi Kunitomo; Megumi Oshikata; Kayoko Nakayama; Kiyoko Suwa; Yoshiko Murakami