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甲基-Alpha-D-吡喃半乳糖苷 | 93302-26-2

中文名称
甲基-Alpha-D-吡喃半乳糖苷
中文别名
甲基-D-半乳糖苷;α-D-乳酸吡喃糖苷甲酯单水合物;α-甲基半乳糖苷;甲基-Α-D-吡喃半乳糖苷
英文名称
methyl D-galactopyranoside
英文别名
(2R,3R,4S,5R)-2-(Hydroxymethyl)-6-methoxytetrahydro-2H-pyran-3,4,5-triol;(2R,3R,4S,5R)-2-(hydroxymethyl)-6-methoxyoxane-3,4,5-triol
甲基-Alpha-D-吡喃半乳糖苷化学式
CAS
93302-26-2
化学式
C7H14O6
mdl
——
分子量
194.185
InChiKey
HOVAGTYPODGVJG-TVPFVARWSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 熔点:
    95-98℃
  • 沸点:
    389.1±42.0 °C(Predicted)
  • 密度:
    1.47

计算性质

  • 辛醇/水分配系数(LogP):
    -2.2
  • 重原子数:
    13
  • 可旋转键数:
    2
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    1.0
  • 拓扑面积:
    99.4
  • 氢给体数:
    4
  • 氢受体数:
    6

安全信息

  • 安全说明:
    S22
  • 危险性防范说明:
    P261,P305+P351+P338
  • 危险性描述:
    H315,H319,H335
  • 储存条件:
    存储条件为2-8°C,并需保存在惰性气体中。

SDS

SDS:6bb7e8832dae0d1cd20aab3becb6f0e5
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上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    甲基-Alpha-D-吡喃半乳糖苷三乙基硅烷 、 cerium(III) chloride 、 硫酸三氟化硼乙醚乙酸酐四丁基碘化铵 、 sodium hydride 、 溶剂黄146二甲基亚砜 、 sodium hydroxide 作用下, 以 四氢呋喃甲醇二氯甲烷N,N-二甲基甲酰胺乙腈 为溶剂, 生成 3,7-anhydro-4,5,6,8-tetra-O-benzyl-1,1,2,2-tetradehydro-1,2-D-glycero-L-mannooctitol
    参考文献:
    名称:
    X-Ray Crystal Structure Determinations of Galactosylacetylene Building Blocks
    摘要:
    We report the crystal structures of two galactosylacetylenes: 3,7-anhydro-4,5,6,8-tetra- O-benzyl-1,1,2,2-tetradehydro-1,2-dideoxy-1-C-(trimethylsilyl)-D-glycero-L-mann ooctitol (7) and 3,7-anhydro-4,5,6,8-tetra-O-benzyl-1,1,2,2-tetradehydro-1,2-D-glycero-L-mannooctitol (8). A short overview of the synthetic chemistry used to obtain these targets is mentioned.
    DOI:
    10.1080/07328303.2011.554935
  • 作为产物:
    描述:
    D-galactose dimethyl acetal 在 甲醇硫酸 作用下, 生成 甲基-Alpha-D-吡喃半乳糖苷
    参考文献:
    名称:
    Investigation of the role of dimethyl acetals in the formation of methyl glycosides
    摘要:
    DOI:
    10.1021/jo01266a053
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文献信息

  • Montmorillonite K-10 as a Reusable Catalyst for Fischer Type of Glycosylation under Microwave Irradiation
    作者:Dipak K. Roy、Manobjyoti Bordoloi
    DOI:10.1080/07328300802107437
    日期:2008.7
    Montmorillonite K10 catalyzed Fischer type glycosylation was studied for various monosacharides with different alcohols under microwave irradiation. The method was found to be efficient, economic, simple and time saving and the catalyst montmorillonite K-10 was reused three times without loss of catalytic activity and anomeric selectivity. With glycerol, the method gave products glycosylated at primary
    在微波辐射下,研究了蒙脱石K10催化的费歇尔型糖基化反应,研究了用不同醇制得的各种单糖。发现该方法是有效,经济,简单和省时的,并且催化剂蒙脱石K-10可重复使用三次,而不会损失催化活性和端基异构体选择性。对于甘油,该方法仅产生在伯醇处糖基化的产物。
  • 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)。
  • Synthesis of Rare Deoxy Amino Sugar Building Blocks Enabled the Total Synthesis of a Polysaccharide Repeating Unit Analogue from the LPS of <i>Psychrobacter cryohalolentis</i> K5<sup>T</sup>
    作者:Madhu Emmadi、Suvarn S. Kulkarni
    DOI:10.1021/acs.joc.8b02037
    日期:2018.12.7
    K5T strain was reported. Due to the presence of unnatural amino sugars and branched linkages, its structure is unique. Herein we report the total synthesis of an LPS analogue of P. cryohalolentis K5T. After overcoming the issues like ring conformation changes and elimination of triflate, we were able to develop a strategy for the synthesis of the newly reported 2,3,4-triacetamido-2,3,4-trideoxy-l-arabinose
    脂多糖(LPS)在体液免疫中起关键作用。最近,对LPS的结构嗜冷cryohalolentis K5 Ť菌株的报道。由于存在非天然氨基糖和支链,其结构是独特的。在此,我们报告了P的LPS类似物的总合成。cryohalolentis K5牛逼。克服像环的构象变化和消除三氟甲磺酸的问题之后,我们能够制定一项战略,在新报告的2,3,4- triacetamido -2,3,4-三脱氧合成升-阿拉伯糖衍生物。从非还原端到还原端,不同的供体与合适的受体偶联,并且进一步的官能团修饰递送了受保护的LPS六糖重复单元。官能团修饰后,我们无法氧化受阻伯羟基以合成目标分子。或者,除去永久性保护基团,得到了Psychobacter cryohalolentis K5 T的LPS六糖重复单元类似物。
  • SUBSTITUTED-6,8-DIOXABICYCLO[3.2.1]OCTANE-2,3-DIOL COMPOUNDS AS TARGETING AGENTS OF ASGPR
    申请人:Pfizer Inc.
    公开号:US20150329555A1
    公开(公告)日:2015-11-19
    Compounds of Formula (A) are described herein and the uses thereof for the treatment of diseases, conditions and/or disorders mediated by pharmaceutical compositions and the uses thereof as asialoglycoprotein receptor (ASGPR) targeting agents.
    公式(A)的化合物在本文件中被描述,以及它们用于治疗由药物组合物介导的疾病、状况和/或紊乱的使用,以及它们作为阿索糖蛋白受体(ASGPR)靶向剂的使用。
  • 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)。
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