Yoshitake Naoi
Japan Tobacco
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Publication
Featured researches published by Yoshitake Naoi.
Heterocycles | 1990
Hiroshi Kawakami; Takashi Ebata; Koshi Koseki; Katsuya Matsumoto; Hajime Matsushita; Yoshitake Naoi; Kazuo Itoh
Coupling reactions between 1-chloro-2,3-dideoxyribose and silylated pyrimidines have been examined from the point of stereoselectivity. When the reaction was carried out in chloroform, the selectivity was in the anomeric ratio of α:β=4:6. On the other hand, the presence of tertiary amine raises the selectivity to α:β=3:7
Heterocycles | 1990
Hiroshi Kawakami; Takashi Ebata; Koshi Koseki; Hajime Matsushita; Yoshitake Naoi; Kazuo Itoh; Nobuhiro Mizutani
The coupling reaction between 1-α-chloro-2-deoxyribose derivative and silylated 5-trifluoromethyluracil was examined. The best stereoselectivity was obtained when the reaction was carried out using a large amount of silylated base in the presence of anhydrous zinc chloride
Heterocycles | 1990
Koshi Koseki; Takashi Ebata; Hiroshi Kawakami; Hajime Matsushita; Yoshitake Naoi; Kazuo Itoh
Archive | 1990
Koshi Koseki; Takashi Ebata; Hiroshi Kawakami; Hajime Matsushita; Kazuo Itoh; Yoshitake Naoi
Heterocycles | 1991
Hiroshi Kawakami; Takashi Ebata; Koshi Koseki; Katsuya Matsumoto; Hajime Matsushita; Yoshitake Naoi; Kazuo Itoh
Chemistry Letters | 1990
Hiroshi Kawakami; Takashi Ebata; Koshi Koseki; Hajime Matsushita; Yoshitake Naoi; Kazuo Itoh
Chemistry Letters | 1989
Hiroshi Kawakami; Hajime Matsushita; Yoshitake Naoi; Kazuo Itoh; Hajime Yoshikoshi
Archive | 1990
Kazuo Itoh; Yoshitake Naoi; Hajime Matsushita; Takashi Ebata; Hiroshi Kawakami
Chemistry Letters | 1989
Hiroshi Kawakami; Hajime Matsushita; Makoto Shibagaki; Yoshitake Naoi; Kazuo Itoh; Hajime Yoshikoshi
Archive | 1992
Kazuo Itoh; Yoshitake Naoi
