Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Toshihiro Tokumoto"'
Autor:
Tetsuro Shingu, Masaru Kihara, Shigeru Kobayashi, Zenei Taira, Toshihiro Tokumoto, Yasuhiro Imakura
Publikováno v:
Chemical and Pharmaceutical Bulletin. 32:3015-3022
A new base, 3-O-acetylhamayne (11), was isolated from Crinum latifolium L. (Amaryllidaceae) along with crinamine (3), powelline (4), crinine (5), 1-O-acetyllycorine (6), hamayne (8), undulatine (13), and cherylline (14). The bases 3, 4, 5, and 14, as
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
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