uronic acid

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: uronic acid
• 英文别名: methyl glucopyranosiduronic acid；(2S,3S,4S,5R)-3,4,5-trihydroxy-6-methoxyoxane-2-carboxylic acid
• 化学式: C₇H₁₂O₇
• 分子量: 208.168
• InChiKey: BOFXVYGDIRCHEQ-OJGRKFFBSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.8
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  116
• 氢给体数：
  4
• 氢受体数：
  7

反应信息

• 作为产物：
  描述：

  甲基-Alpha-D-吡喃葡糖苷 在 2,2,6,6-四甲基哌啶氧化物 、 碳酸氢钠 、 sodium carbonate 作用下， 以 水 、 叔丁醇 为溶剂， 以98%的产率得到uronic acid
  参考文献：
  名称：

  Photovoltaic-driven organic electrosynthesis and efforts toward more sustainable oxidation reactions

  摘要：

  可见光、光伏和电化学的组合为进行各种可持续氧化反应提供了一个方便、廉价的平台。本文提出的方法适用于直接和间接氧化反应，避免了需要计量氧化剂的需求，并且导致氢气成为相应还原反应的唯一副产物。

  DOI：

  10.3762/bjoc.11.32

文献信息

• Saponin and sapogenol. XXXVIII. Structure of soyasaponin A2, a bisdesmoside of soyasapogenol A, from soybean, the seeds of Glycine max Merrill.
  作者：ISAO KITAGAWA、MASAYUKI SAITO、TOSHIO TANIYAMA、MASAYUKI YOSHIKAWA

  DOI：10.1248/cpb.33.598

  日期：——

  Two new bisdesmosides of soyasapogenol A (1), named soyasaponin A1 and soyasaponin A2 (7), were isolated from soybean, the seeds of Glycine max MERRILL, together with the known soyasaponins I (4), II (5), and III (6). By employing a photochemical degradation method, which is a selective cleavage method for the glucuronide linkage in oligoglycosides, and on the bases of spectral analyses and chemical reactions, the structure of soyasaponin A2 was elucidated as 3-O-[β-D-galactopyranosyl (1→2)-β-D-glucuronopyranosyl]-22-O-[β-D-glucopyranosyl (1→3)-α-L-arabinopyranosyl] soyasapogenol A (7).

  从大豆（Glycine max MERRILL的种子）中分离出两种新的大豆皂醇A（1）的双糖苷，命名为大豆皂苷A1和大豆皂苷A2（7），以及已知的大豆皂苷I（4）、II（5）和III（6）。通过采用光化学降解方法，这是一种针对寡糖苷中葡萄糖醛酸键的选择性断裂方法，并基于光谱分析和化学反应，确定了大豆皂苷A2的结构为3-O-[β-D-半乳糖吡喃糖基（1→2）-β-D-葡萄糖醛酸吡喃糖基]-22-O-[β-D-葡萄糖吡喃糖基（1→3）-α-L-阿拉伯糖吡喃糖基]大豆皂醇A（7）。
• [EN] THERAPEUTICALLY ACTIVE ESTRATRIENTHIAZOLE DERIVATIVES AS INHIBITORS OF 17 B-HYDROXYSTEROID DEHYDROGENASE, TYPE 1<br/>[FR] DÉRIVÉS D'ESTRATRIÉNTHIAZOLE THÉRAPEUTIQUEMENT ACTIFS UTILISÉS COMME INHIBITEURS DE LA 17&Bgr;-HYDROXYSTÉROÏDE DÉSHYDROGÉNASE DE TYPE 1
  申请人：FORENDO PHARMA LTD

  公开号：WO2014207309A1

  公开（公告）日：2014-12-31

  The invention relates to compounds of formula (I) and pharmaceutically acceptable salts thereof wherein R1 to R6 are as defined in the claims. The invention further relates to their use as inhibitors of 17β-HSD and in treatment or prevention of steroid hormone de- pendent diseases or disorders, such as steroid hormone dependent diseases or disorders requiring the inhibition of the 17β-HSD1 enzyme and/or requiring the lowering of the endogenous estradiol concentration. The present invention also relates to the preparation of the aforementioned compounds and to pharmaceutical compositions comprising as an active ingredient(s) one or more of the aforementioned compounds or pharmaceutically acceptable salts thereof.

  本发明涉及式(I)化合物及其药用可接受的盐，其中R1至R6如权利要求中定义。本发明进一步涉及它们作为17β-HSD抑制剂的应用，以及在治疗或预防甾体激素依赖性疾病或失调症，例如需要抑制17β-HSD1酶和/或需要降低内源性雌二醇浓度的甾体激素依赖性疾病或失调症中的应用。本发明还涉及前述化合物的制备，以及包含一个或多个前述化合物或其药用可接受盐作为活性成分的药物组合物。
• Saponin and sapogenol. XXXIX. Structure of soyasaponin A1, a bisdesmoside of soyasapogenol A, from soybean, the seeds of Glycine max Merrill.
  作者：ISAO KITAGAWA、MASAYUKI SAITO、TOSHIO TANIYAMA、MASAYUKI YOSHIKAWA

  DOI：10.1248/cpb.33.1069

  日期：——

  Five bioactive triterpene-oligoglycosides, named soyasaponins I, II, III, A1 (3), and A2 (2), were isolated from soybean, the seeds of Glycine max MERRILL (Leguminosae). By employing a photochemical degradation method and a lead tetraacetate degradation method, which are two of four selective cleavage methods available for the glucuronide linkage in oligoglycosides, the structure of soyasaponin A1 was elucidated to be 3-O [β-D-glucopyranosyl (1→2)-β-D-galactopyranosyl (1→2)-β-D-glucuronopyranosyl-22-O-[β-D-glucopyranosyl (1→3)-α-L-arabinopyranosyl]-soyasapogenol A (3).

  从豆科植物大豆（Glycine max Merrill）的种子中分离出五种具有生物活性的三萜类低聚糖苷，分别命名为大豆皂苷I、II、III、A1（3）和A2（2）。通过采用两种选择性裂解方法，即光化学降解法和四乙酸铅降解法（这是四种可用于低聚糖苷中葡萄糖醛酸连接的选择性裂解方法中的两种），阐明了大豆皂苷A1的结构为：3-O[β-D-葡萄吡喃糖基（1→2）-β-D-半乳吡喃糖基（1→2）-β-D-葡萄糖醛吡喃糖基]-22-O[β-D-葡萄吡喃糖基（1→3）-α-L-阿拉伯吡喃糖基]-大豆皂苷元A（3）。
• PHARMACEUTICAL COMPOSITIONS AND METHODS OF PREVENTING, TREATING, OR INHIBITING INFLAMMATORY DISEASES, DISORDERS, OR CONDITIONS OF THE SKIN, AND DISEASES, DISORDERS, OR CONDITIONS ASSOCIATED WITH COLLAGEN DEPLETION
  申请人：CHANG Chien-Neng

  公开号：US20090010884A1

  公开（公告）日：2009-01-08

  The present invention provides compositions and methods for preventing, treating, or inhibiting inflammatory diseases, disorders, or conditions of the skin, and diseases, disorders, or conditions associated with collagen depletion using one or more estrogenic agents.

  本发明提供了使用一个或多个雌激素类药物预防、治疗或抑制皮肤炎症性疾病、紊乱或状况以及与胶原蛋白流失相关的疾病、紊乱或状况的组合物和方法。
• Saponin and sapogenol. XXXIII. Chemical constituents of the seeds of Vigna angularis (Willd.) Ohwi et Ohashi. (3). Azukisaponins V and VI.
  作者：ISAO KITAGAWA、HUIKANG WANG、MASAYUKI SAITO、MASAYUKI YOSHIKAWA

  DOI：10.1248/cpb.31.683

  日期：——

  The chemical structures of azukisaponins V (1) and VI (5), two of the six oligoglycosidic ingredients of total azukisaponin isolated from azuki beans, the seeds of Vigna angularis (WILLD.) OHWI et OHASHI (Leguminosae), were investigated. By means of photochemical degradation and chemical analyses, the structures of azukisaponins V and VI were elucidated to be 3-O-[α-L-rhamnopyranosyl (1→2)-β-D-glucopyranosyl (1→2)-β-D-glucuronopyranosyl]-soyasapogenol B (1) and 3-O-[β-D-glucopyranosyl (1→2)-β-D-glucuronopyranosyl]-29-O-[β-D-glucopyranosyl (1→6)-β-D-glucuronopyranosyl] azukisapogenol (5), respectively. Azukisaponin VI (5) is the first reported example of a 3, 29-bisdesmoside of an oleanene oligoglycoside.

  研究了从红豆（Vigna angularis (WILLD.) OHWI et OHASHI）中提取的总红豆皂苷的六种寡糖苷成分中的两种：红豆皂苷V（1）和VI（5）的化学结构。通过光化学降解和化学分析，阐明了红豆皂苷V和VI的结构分别为3-O-[α-L-鼠李糖吡喃基（1→2）-β-D-葡萄糖吡喃基（1→2）-β-D-葡萄糖醛酸吡喃基]-大豆皂苷醇B（1）和3-O-[β-D-葡萄糖吡喃基（1→2）-β-D-葡萄糖醛酸吡喃基]-29-O-[β-D-葡萄糖吡喃基（1→6）-β-D-葡萄糖醛酸吡喃基]红豆皂苷醇（5）。红豆皂苷VI（5）是首次报道的三、二十九双配糖体的鞘脂寡糖苷。