methyl 4-O-(3,4-di-O-acetyl-2,6-dideoxy-α-L-arabino-hexopyranosyl)-2,3-O-isopropylidene-α-L-rhamnopyranoside | 126330-66-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl 4-O-(3,4-di-O-acetyl-2,6-dideoxy-α-L-arabino-hexopyranosyl)-2,3-O-isopropylidene-α-L-rhamnopyranoside
• 英文别名: [(2S,3S,4S,6S)-6-[[(3aR,4R,6S,7S,7aR)-4-methoxy-2,2,6-trimethyl-4,6,7,7a-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran-7-yl]oxy]-3-acetyloxy-2-methyloxan-4-yl] acetate
• CAS: 126330-66-3
• 化学式: C₂₀H₃₂O₁₀
• 分子量: 432.468
• InChiKey: VSWIWMYXMXWGOK-DEKAJGEMSA-N

物化性质

• 沸点：
  489.4±45.0 °C(Predicted)
• 密度：
  1.23±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.28
• 重原子数：
  30.0
• 可旋转键数：
  5.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.9
• 拓扑面积：
  107.98
• 氢给体数：
  0.0
• 氢受体数：
  10.0

反应信息

• 作为产物：
  描述：

  [(2S,3S,4S)-3-acetyloxy-2-methyl-6-pyridin-2-ylsulfanyloxan-4-yl] acetate 、 甲基 2,3-O-异亚丙基-alpha-L-吡喃鼠李糖苷 以81%的产率得到
  参考文献：
  名称：

  RAVI, D.;KULKARNI, VINAYAK R.;MEREYALA, HARI BABU, TETRAHEDRON LETT., 30,(1989) N2, C. 4287-4290

  摘要：

  DOI：

文献信息

• Stereoselective synthesis of α-linked 2-deoxysaccharides and furanosaccharides by use of 2-deoxy 2-pyridyl-1-thio pyrano- and furanosides as donors and methyl iodide as an activator
  作者：Hari Babu Mereyala、Vinayak R Kulkarni、D Ravi、GVM Sharma、B Venkateswara Rao、G Bapu Reddy

  DOI：10.1016/s0040-4020(01)89016-5

  日期：——

  A practical and highly stereoselective glycosidation methodology is described, where anomeric mixture of 2-deoxy 2-pyridyl-1-thiopyranoside donors (1–3, 27) have been coupled with several sugar alcohols (4–8,29,31) on activation by methyl iodide to obtain axially linked 2-deoxysaccharides (9–17,30,32,33). Application of this method for the synthesis of disaccharide fragment 28 of avermectin is also

  一种实用的和高立体选择性糖苷化的方法进行了说明，其中2-脱氧-2-吡啶基-1- thiopyranoside供体（的端基异构混合物1-3，27）已经被加上几个糖醇（4-8,29,31）上激活通过甲基碘获得轴向连接的2-脱氧糖（9–17,30,32,33）。还描述了该方法在合成阿维菌素的二糖片段28中的应用。通过使用2-吡啶基-1-硫呋喃糖苷（34-36）作为供体来制备α-连接的呋喃糖苷（42-51），也显示了该方法的实用性。
• A mild general method for the synthesis of ∝-2-deoxy-disaccharides: Synthesis of L-oleandrosyl-L-oleandrose from D-glucose
  作者：D. Ravi、Vinayak R. Kulkarni、Hari Babu Mereyala

  DOI：10.1016/s0040-4039(01)80712-7

  日期：1989.1

  A mild, general method for the stereoselective synthesis of ∝-2-deoxy disaccharides is described using 2-deoxy-2-pyridyl 1-thioglycosides 4, 7, 8 as glycosyl donors and methyl iodide as an activator. Thus, a disaccharide 6 component of avermectin family is synthesized starting from D-glucose.

  对于α-2-脱氧二糖的立体选择性合成一种温和，一般方法描述了使用2-脱氧-2-吡啶基1-硫代糖苷4，7，8为糖基供体和甲基碘作为活化剂。因此，从D-葡萄糖开始合成阿维菌素家族的二糖6成分。