Výsledky vyhledávání - "Shojiro Uyeo"

Structure and synthesis of acid A, an oxidation product of lycoramine

Autor: Tomomi Koike, Hiroshi Irie, Toshihiro Tokumoto, Shojiro Uyeo, Shigeru Kobayashi, Kinji Iizuka

Publikováno v: Chemical and Pharmaceutical Bulletin. 34:2443-2447

L'acide A est l'acide dioxo-2,6 hexahydro-2,2a,3,4,5,6 methoxy-9 methyl-5 furo [4,3,2-ef] benzoazepine-2propionique-2a; sa structure est mise en evidence par etudes spectrales, reactions chimiques et synthese de son ester methyle racemique

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::03758b97b81102edde93dc89b130d124
https://doi.org/10.1248/cpb.34.2443

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Alkaloids of the amaryllidaceae. A new alkaloid, sanguinine, from Lycoris sanguinea Maxim. var. Kiushiana Makino, and pretazettine from Lycoris radiata Herb

Autor: Shigeko Takeda, Shigeru Kobayashi, Hideki Ishikawa, Masaru Kihara, Hiroshi Matsumoto, Tetsuro Shingu, Atsushi Numata, Shojiro Uyeo

Publikováno v: Chemical and Pharmaceutical Bulletin. 24:1537-1543

The bulbs of Lycoris sanguinea MAXIM. var. kiushiana MAKINO (Amaryllidaceae) were found to contain a new phenolic alkaloid, sanguinine (I), as well as lycorine (II) and galanthamine (III). Sanguinine (I), C16H19O2N, was established to be O-demethyl-g

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bd68748f3b12548a53ba1f0899dd902a
https://doi.org/10.1248/cpb.24.1537

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Structures of acid B and related compounds, oxidation products of lycoramine

Autor: Shigeru Kobayashi, Tetsuro Shingu, Toshihiro Tokumoto, Yasuhiro Imakura, Masaru Kihara, Junji Koizumi, Shojiro Uyeo

Publikováno v: Chemical and Pharmaceutical Bulletin. 34:4050-4055

The structures of "acid B" and its monoethyl ester, which are stepwise oxidation products of lycoramine (2), an Amaryllidaceae alkaloid, and the structure of a nitro derivative of acid B, an oxidation product of oxolycoramine (5) with nitric acid, we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9bce94f04db6e18c7051579799cd5ccf
https://doi.org/10.1248/cpb.34.4050

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Constitution and stereochemistry of enmein, a diterpene from isodon trichocarpus kudo

Autor: T. Tsutsui, Shojiro Uyeo, Hiroshi Irie, T. Matsuura, Takashi Kubota, Tetsuro Fujita, A. Numata, Toshiyasu Suzuki

Publikováno v: Tetrahedron. 22:1659-1699

The total structure of enmein, a diterpene, isolated from Isodon trichocarpus Kudo has been established as shown in the formula If.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::935114f2d752603d474aeaa121ad85fa
https://doi.org/10.1016/0040-4020(66)80156-4

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