Studies on the Steroidal Components of Domestic Plants. XVII. The Structure of Yonogenin, a New Steroidal Sapogenin from Dioscorea Tokoro MAKINO.

スポンサーリンク

概要

• 論文の詳細を見る

• Two new sapogenins, yonogenin and kogagenin, and tokorogenin were isolated from the epigeous part of Dioscorea Tokoro MAKINO. The structure of yonogenin was established to be 25D, 5β-spirostane-2β, 3α-diol (Va) by its degradation to samogenic acid (IIa) and by its conversion via Δ^2-olefin (III) to samogenin (IVa), which was epimerized to original yonogenin (episamogenin). 25D, 5β-Spirostane-2α, 3β-diol (VIIa) was also prepared.

• 公益社団法人日本薬学会の論文
• 1958-10-15

著者

• 武田 健一

  Research Laboratory Shionogi & Co. Ltd.

• 岡西 為人

  Research Laboratory, Shionogi & Co., Ltd.

• 島岡 有昌

  Research Laboratory, Shionogi & Co., Ltd.

関連論文

• Thiosteroids. XXXVI. Synthesis of Some 16-Sulfur-substituted Steroids
• Sesquiterpenes of Lauraceae Plants. IV. Germacranolides from Laurus nobilis L.
• Gas Chromatographic Identification of 2,6-Disubstituted-trans-decalins using Retention Indices
• Syntheses and Spectral Properties of 2,6-Disubstituted-trans-decalins
• Dehydrogenation of Lindenenyl Acetate by Palladium
• Components of the Root of Acorus calamus L.
• Thiosteroids. XXI. Episulfide Formation from Vicinal Thiocyanatohydrins and Their Acetates
• Structure of Diotigenin. (1)
• Bile Acids and Steroids. XXXIV. Thiosteroids. (19). 6α-and 6β-Thiocyanato-progesterone and Related Compounds.
• Studies on Seven-membered Ring Derivatives. IV. 6,10-Dimethylbicyclo-[5.3.0] decanones obtained from Guaiol
• Bile Acids and Steroids. XXXII. Thiosteroids. (17). Synthesis of 16β-Acetylthio-and 16β-Alkylthio-estratriene Derivatives
• Studies on A-Norsteroids. I. Synthesis of A-Nor-Δ^-1,2-dioxo Steroids
• Bile Acids and Steroids. XXVIII. Thiosteroids. (13). Further Study on Synthesis of 5'-Methylthieno-[4', 3', 2'-4,5,6]-5-en-3-one Steroids
• Bile Acids and Steroids. XXV. Thiosteroids. (10). Synthesis of Some 16β-Acetylthio- and 16β-Alkylthio-estrones and their Derivatives
• Bile Acids and Steroids. XXIII. Thiosteroids. (8). Intramolecular Condensation of Some 6-Acetylthio Steroids.
• Bile Acids and Steroids. XXII. Thiosteroids. (7). Synthesis of Some Thiazolo [5', 4'-16,17] steroids by the Hantzsh Reactions.
• Uber angular substituierte polycyclische Verbindungen. III. Alkalische Degradation von 3α-Alkoxy-3β-amino-5β-cholestan-5-carbonsaure-γ-laktam.
• Totalsynthetische Untersuchungen an Steroiden. VI. Einfuhrung der C-Substituenten in die angulare Stellung der kondensierten Ringsysteme. (1). Einwirkung von Kaliumcyanid auf rac-D-Homo-18-nor-androstan-derivaten.
• Totalsynthetische Untersuchungen an Steroiden. V. Reduktion von rac-17-Methoxy-D-homo-18-nor-androsta-4,8,13,15,17-pentaen-3-on mit Lithium in flussigem Ammoniak.
• Totalsynthetische Untersuchungen an Steroiden. IV. Synthese der Hydrophenanthren-sowie Hydrochrysenderivate.
• Preparation of the Steroidal 1,4,11-Trien-3-ones and a Surprisingly Rapid Dienone-phenol Rearrangement
• ステロイドサポゲニン(第11報) : ステロイドホルモンに関係あるメタゲニン誘導体 その2
• On Steroidal Sapogenins. IX. Some Derivatives of Metagenin Related to Steroidal Hormones (Part 1)
• Studies on the Steroidal Components of Domestic Plants. XXII. : Structure of Metagenin. (2).
• 2-および3-オキソステロイドの酸素酸化反応(第2報) : 3-オキソステロイド類の塩基性溶液中における酸素酸化反応
• 2-および3-オキソステロイドの酸素酸化反応(第1報)2-オキソステロイドの塩基性溶液中における酸素酸化反応
• Some Observations of Oxygenation of C_2- or C_3-Oxo-5α-steroids Possessing C_11-Oxo-group
• 天台烏薬中の成分Linderane及びLindereneの構造に就て
• 坂本吉勝君を偲んで
• 研究者の心と研究(10年後の天然物化学は)
• 有機天然化合物の化学は、今……
• 奥野政藏先生を悼んで
• 名誉会員塚元久雄先生を悼む
• Germacrane形セスキテルペンの化学
• 名誉会員刈米達夫先生を悼む
• オクテット
• 有功会員塚本赳夫先生を悼む
• 34 植物培養細胞におけるphytosterolの生合成 : ^C-signalの帰属と側鎖生合成における立体特異性
• Bile Acids and Steroids. XXXV. Some A-Ring Aromatic Steroids having Oxygen Functions at C-16 and Their Pharmacological Activities. (1)
• Studies on Biochemical Transformation of Plant Steroids. Part II. Biochemical Conversion of Gitogenin into 12-Oxygenated Sapogenins in Hosta kiyosumiensis F. MAEK
• 39 Chiogralactoneの構造と合成
• 38.Tokorogenin-2,3-diacetate及びその関連化合物の研究
• Studies on the Steroidal Components of Domestic Plants. XLVIII. Components of Chionographis japonica MAXIM. (1)
• 33.天台烏薬の成分に就て 第十一報 : リンデレン及びその誘導体のDDQ酸化に就て : DDQ酸化成績体を利用しての立体構造の検討
• Studies on the Steroidal Components of Domestic Plants. XLV. Constituents of Hosta Species. (2)
• Studies on Sesquiterpenoids. V. The Structure of a Double Bond Isomer of α-Dihydroguaiene.
• 26.Reineckiagenin,Isoreineckiagenin及びIsocarneageninの構造について
• Studies on Sesquiterpenoids. I. Absolute Configuration of Guaiol. (1). Absolute Configuration of the Methyl Group at C-4 in Guaiol.
• Synthesis of Matrine Derivatives. III. Studies on the von Braun Degradation of Matridine.
• B-5-2 New Ten-Membered Sesquiterpenic Lactones having a Furan Ring(Terpenoids)
• Diels-Alder反応(第3報)ハイドロキノンと無水マレイン酸の反応
• 胆汁酸とスチロイドの研究(第6報) : 7-Oxo-6-bromocholanic Acidsの酸化について
• 胆汁酸とスチロイドの研究(第5報) : Methyl 3α-Acetoxy-7-oxocholanateのブロム化及びその関連化合物のブロム立体配位について
• Diels-Alder Reaction. II. : Reaction of β-Naphthol and Maleic Anhydride : Isolation of Another Isomeric Adduct.
• β-Naphtholと無水マレイン酸の反応-附加化合物の他の一異性体に就て
• Naphtho-〔2,3-b〕-furan誘導体の合成に就て
• The Conversion of Dihydrolycorine to (-)-α-Lycorane
• Bile Acids and Steroids. X. On β-Spinasterol.
• Studies on the Steroidal Components of Domestic Plants. XXXI. Constituents of Reineckia carnea KUNTH. (3). Pentologenin and Kitigenin.
• Studies on the Steroidal Components of Domestic Plants. XXX. Structure of Nogiragenin, a 'New Sapogenin isolated from Metanarthecium luteo-viride MAXIM.
• The Isomers of 25D, 5β-spirostane-2,3-diol
• Studies on the Steroidal Components of Domestic Plants. XVII. The Structure of Yonogenin, a New Steroidal Sapogenin from Dioscorea Tokoro MAKINO.
• 邦産植物ステリン成分の研究(第5報) : Agave属の成分について
• 邦産植物ステリン成分の研究(第4報) : Yucca属の成分について その1
• Bile Acids and Steroids. XIV. Thiosteroids. (3). Reduction of the 11β, 12β-Episulfide
• Bile Acids and Steroids. XIII. Thiosteroids. (2). Addition of Thiocyanic Acid to Steroidal α, β-Unsaturated Ketones
• The Stereochemistry of Dihydrolycorine.
• On Steroidal Sapogenins. II. Synthesis of Some 7-Oxygenated 5β, 25D-Spirostanes.
• Totalsynthese von 3-Hydroxy-19-norpregna-1,3,5 (10)-trien-20-on und dessen 18-Oxo-derivat
• Bile Acids and Steroids. XII. Thiosteroids (1). The Fission of Epoxide in the C-Ring of Steroids by Thiocyanic Acid
• Studies on the Steroidal Components of Domestic Plants. XVIII. Components of the Root of Bupleurum falcatum L. (2).
• Studies on Seven-membered Ring Derivatives. III. : Partial Synthesis of 1,4-Dimethyl-7-ethylazulene (Lindazulene).
• Components of the Root of Lindera strychinifolia Vill. V. : Azulenes isolated from Linderene by Zinc-Dust Distillation.

もっと見る 閉じる

スポンサーリンク