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Journal of Chromatography A | 1966

Analytical chemical studies on steroids : Part IX. Gas chromatographic separation of C-14-epimeric 5α-androstanes

Toshio Nambara; Reiko Imai

Abstract Gas chromatographic separation of 10 pairs of C-14-epimeric 5α-androstanes was examined using SE-52, NGS, CNSi and QF- i as stationary phases. The effect of the substituents in ring D on the separation of each pair of epimers with the respective liquid phase is described.


Chemical & Pharmaceutical Bulletin | 1967

Syntheses of Estriol Monoglucuronides.

Toshio Nambara; Kazuhiro Imai


Chemical & Pharmaceutical Bulletin | 1975

The Crystal Structure of 3-Methoxy-16-hydroxy-13α-estra-1, 3, 5 (10), 15-tetraen-17-one p-Bromobenzoate

Toshio Nambara; Toshihiro Kudo; Hiroshi Hosoda; Yoichi Iitaka; Norihisa Kikutani


Pharmaceutical bulletin | 1957

Naphthoresorcinol picrate for the determination of glucuronic acid in physiological materials.

Morizo Ishidate; Toshio Nambara


Chemical & Pharmaceutical Bulletin | 1968

The Synthesis and Zimmermann Reaction of Some Androsten-16-ones

Toshio Nambara; Motohiko Kato; Reiko Imanari; Toshihiro Kudo; nee Imai


Chemical & Pharmaceutical Bulletin | 1964

Chemistry of 3β, 12-Dihydroxy-5α-androstan-17-ones

Toshio Nambara


Chemical & Pharmaceutical Bulletin | 1965

Analytical chemical studies on steroids. IV. The Zimmermann reaction of 16- and 17-oxosteroids.

Toshio Nambara; Motohiko Kato


Chemical & Pharmaceutical Bulletin | 1968

Analytical Chemical Studies on Steroids. XX. Zimmermann Reaction and Deuterium Exchange Reactivity of Oxosteroids and Related Compounds

Motohiko Kato; Masako Ohnishi; Toshio Nambara


Chemical & Pharmaceutical Bulletin | 1965

Analytical Chemical Studies on Steroids. V. The Synthesis and Rotatory Dispersion of 12-Dehydrodigoxigenin and some Related Compounds

Toshio Nambara


Chemical & Pharmaceutical Bulletin | 1964

Reactions of the 16-Double Bond of 5α, 14β-Androst-16-ene

Toshio Nambara; Kohichi Hirai

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