momordin Ia | 95851-40-4

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: momordin Ia
• 英文别名: momordin I；momordine I；(2S,3S,4S,5R,6R)-6-[[(3S,4aR,6aR,6bS,8aS,12aS,14aR,14bR)-8a-carboxy-4,4,6a,6b,11,11,14b-heptamethyl-1,2,3,4a,5,6,7,8,9,10,12,12a,14,14a-tetradecahydropicen-3-yl]oxy]-3,5-dihydroxy-4-[(2S,3R,4S,5S)-3,4,5-trihydroxyoxan-2-yl]oxyoxane-2-carboxylic acid
• CAS: 95851-40-4
• 化学式: C₄₁H₆₄O₁₃
• 分子量: 764.951
• InChiKey: HWYBGIDROCYPOE-UDXSKONJSA-N

物化性质

• 沸点：
  886.2±65.0 °C(Predicted)
• 密度：
  1.35±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.6
• 重原子数：
  54
• 可旋转键数：
  6
• 环数：
  7.0
• sp3杂化的碳原子比例：
  0.9
• 拓扑面积：
  213
• 氢给体数：
  7
• 氢受体数：
  13

反应信息

• 作为反应物：
  描述：

  momordin Ia 在 盐酸 、 sodium tetrahydroborate 作用下， 以 甲醇 、 乙醚 为溶剂， 反应 4.0h， 生成 齐墩果酸甲酯
  参考文献：
  名称：

  Studies on the constituents of Momordica cochinchinensis Spreng. II. Isolation and characterization of the root saponins, Momordins I, II and III.

  摘要：

  从木鳖子（Momordica cochinchinensis SPRENG. 葫芦科）的根中分离出三种皂苷，命名为木鳖子苷I、II和III。它们的结构通过化学和光谱证据确定为：木鳖子苷I（3-O-α-L-阿拉伯吡喃糖基（1→3）-β-D-葡萄糖醛酸苷基的齐墩果酸）、木鳖子苷II（木鳖子苷I的28-O-β-D-葡萄糖苷）和木鳖子苷III（3β-羟基-11α, 12α-环氧-齐墩果-28, 13-内酯的3-O-α-L-阿拉伯吡喃糖基（1→3）-β-D-葡萄糖醛酸苷）。木鳖子苷II被证实与从大苞赤瓟和中华赤瓟块根中分离出的hemsloside Ma1相同。

  DOI：

  10.1248/cpb.33.1

文献信息

• Medicinal Foodstuffs. XVI. Sugar Beet. (3). Absolute Stereostructures of Betavulgarosides II and IV, Hypoglycemic Saponins Having a Unique Substituent, from the Roots of Beta vulgaris L.
  作者：Toshiyuki MURAKAMI、Hisashi MATSUDA、Masahiro INADZUKI、Kazuhiro HIRANO、Masayuki YOSHIKAWA

  DOI：10.1248/cpb.47.1717

  日期：——

  The absolute stereostructures of betavulgaroside II having a dioxolane-type substituent and betavulgaroside IV having an acetal-type substituent, which were isolated from the roots of Beta vulgaris L. (sugar beet, Chenopodiaceae) and exhibited hypoglycemic activity on glucose-loaded rats, were determined by the chemical correlations of betavulgarosides II and IV with a known saponin, momordin I. In these chemical correlations, the α-L-arabinopyranosyl moiety of momordin I was converted to a dioxolane-type substituent of betavulgaroside II or to an acetal-type substituent of betavulgaroside IV. Additionally, the 2'-diastereoisomer of betavulgaroside IV was synthesized from momordin I, and four acetal-type substituent analogues were also synthesized from L- and D-arabinose.

  通过将已知皂苷 momordin I 与 betavulgaroside II 和 IV 进行化学关联，确定了从甜菜（藜科）根部分离出的具有对葡萄糖负荷大鼠的降血糖活性的含有二氧六环型取代基的 betavulgaroside II 和含有缩酮型取代基的 betavulgaroside IV 的绝对立体结构。在这些化学关联中，momordin I 的 α-L-阿拉伯糖苷部分被转化为 betavulgaroside II 的二氧六环型取代基或 betavulgaroside IV 的缩酮型取代基。此外，从 momordin I 合成了 betavulgaroside IV 的 2'-非对映异构体，并从 L- 和 D-阿拉伯糖合成了四种缩酮型取代基类似物。
• Absolute Stereostructures of Betavulgarosides III and IV, Inhibitors of Glucose Absorption, from the Roots of Beta vulgaris L.(Sugar Beet).
  作者：Masayuki YOSHIKAWA、Toshiyuki MURAKAMI、Masahiro INADUKI、Kazuhiro HIRANO、Johji YAMAHARA、Hisashi MATSUDA

  DOI：10.1248/cpb.45.561

  日期：——

  The absolute stereostructures of betavulgarosides III and IV, which were isolated from the roots of Beta vulgaris L. (sugar beet) and exhibited inhibitory activity on glucose absorption, were determined by the chemical correlation of betavulgaroside IV with a known saponin momordin I, which included the conversion from the α-L-arabinopyranosyl moiety of momordin I to the acidic acetal-type substituent of betavulgarosides III and IV via the α-L-ribopyranosyl derivative. Furthermore, four acidic acetal-type substituent analogues were synthesized from L- and D-arabinose.

  从甜菜（Beta vulgaris L.）的根部分离得到了具有抑制葡萄糖吸收活性的β甜菜苷III和IV，并通过β甜菜苷IV与已知的皂苷momordin I的化学相关性确定了它们的绝对立体结构。这一过程包括将momordin I中的α-L-阿拉伯呋喃糖基部分转化为β甜菜苷III和IV中的酸性缩醛型取代基，即α-L-核呋喃糖衍生物。此外，还从L-和D-阿拉伯糖合成了四种酸性缩醛型取代基类似物。
• Absolute Stereostructures of Spinacosides C and D with a Novel Acetal Type Substituent from Spinacia oleracea (Spinach) and Basella rubra (Indian Spinach)
  作者：Masayuki Yoshikawa、Toshiyuki Murakami、Kazuhiro Hirano、Hisashi Matsuda、Johji Yamahara、Kazuhiro Ohtani、Ryoji Kasai、Kazuo Yamasaki

  DOI：10.3987/com-98-s41

  日期：——

  Spinacosides C and D with a novel acetal-type substituent were isolated from the fresh aerial parts of Spinacia oleracea (Spinach) and Basella rubra (Indian spinach). Their absolute stereostructures were determined on the basis of physicochemical and chemical evidence, which included the conversion from the alpha-L-arabinopyranosyl moiety of a known saponin momordin I to the acetal-type substituent of spinacoside D.
• Studies on the constituents of Momordica cochinchinensis Spreng. II. Isolation and characterization of the root saponins, Momordins I, II and III.
  作者：MASAYO IWAMOTO、HIKARU OKABE、TATSUO YAMAUCHI

  DOI：10.1248/cpb.33.1

  日期：——

  From the root of Momordica cochinchinensis SPRENG. (Cucurbitaceae), three saponins named momordins I, II and III have been isolated. Their structures were determined on the basis of chemical and spectral evidence as oleanolic acid 3-O-α-L-arabinopyranosyl (1→3)-β-D-glucuronopyranoside (momordin I), 28-O-β-D-glucopyranoside of momordin I (momordin II) and 3β-hydroxy-11α, 12α-epoxy-olean-28, 13-olide 3-O-α-L-arabinopyranosyl (1→3)-β-D-glucuronopyranoside (momordin III). Momordin II was proved to be identical with hemsloside Ma1 isolated from the tubers of Hemsleya macrosperma and H. chinensis.

  从木鳖子（Momordica cochinchinensis SPRENG. 葫芦科）的根中分离出三种皂苷，命名为木鳖子苷I、II和III。它们的结构通过化学和光谱证据确定为：木鳖子苷I（3-O-α-L-阿拉伯吡喃糖基（1→3）-β-D-葡萄糖醛酸苷基的齐墩果酸）、木鳖子苷II（木鳖子苷I的28-O-β-D-葡萄糖苷）和木鳖子苷III（3β-羟基-11α, 12α-环氧-齐墩果-28, 13-内酯的3-O-α-L-阿拉伯吡喃糖基（1→3）-β-D-葡萄糖醛酸苷）。木鳖子苷II被证实与从大苞赤瓟和中华赤瓟块根中分离出的hemsloside Ma1相同。