benzyl O-(2,4,6-tri-O-benzyl-β-D-mannopyranosyl)-(1-> 4)-2-O-bemzoyl-6-O-benzyl-α-D-glucopyranoside 3,3'-succinate | 220009-55-2

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 糖脂
• 英文名称: benzyl O-(2,4,6-tri-O-benzyl-β-D-mannopyranosyl)-(1-> 4)-2-O-bemzoyl-6-O-benzyl-α-D-glucopyranoside 3,3'-succinate
• 英文别名: [(1S,3R,4R,6S,7R,8S,15S,16R,17R,19S)-10,13-Dioxo-6,16,19-tris(phenylmethoxy)-4,17-bis(phenylmethoxymethyl)-2,5,9,14,18-pentaoxatricyclo[13.3.1.03,8]nonadecan-7-yl] benzoate
• CAS: 220009-55-2
• 化学式: C₅₈H₅₈O₁₄
• 分子量: 979.09
• InChiKey: KXUAMYROEWVCGO-DFNJJZQLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.9
• 重原子数：
  72
• 可旋转键数：
  20
• 环数：
  9.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  153
• 氢给体数：
  0
• 氢受体数：
  14

反应信息

• 作为反应物：
  描述：

  benzyl O-(2,4,6-tri-O-benzyl-β-D-mannopyranosyl)-(1-> 4)-2-O-bemzoyl-6-O-benzyl-α-D-glucopyranoside 3,3'-succinate 在 甲醇 、 sodium methylate 作用下， 以 二氯甲烷 为溶剂， 反应 24.0h， 生成 (2S,3R,4R,5S,6R)-2-Benzyloxy-6-benzyloxymethyl-5-((2S,3S,4S,5S,6R)-3,5-bis-benzyloxy-6-benzyloxymethyl-4-hydroxy-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-3,4-diol
  参考文献：
  名称：

  Synthesis ofβ-Mannosides via Prearranged Glycosides

  摘要：

  The choice of activator is decisive for whether the α-(1→4)-linked disaccharide 2 α or the anomeric compound 2 β is formed from the prearranged glycoside 1. Other β-mannosylsaccharides can also be synthesized selectively by intramolecular glycosylation. Bn=benzyl, Bz=benzoyl, MeOTf= methyl trifluoromethanesulfonate, NIS=N-iodosuccinimide.

  DOI：

  10.1002/(sici)1521-3773(19981204)37:22<3129::aid-anie3129>3.0.co;2-8
• 作为产物：
  描述：

  ethyl 2,3-di-O-isopropylidene-1-thio-α-D-mannopyranoside 在 吡啶 、 盐酸 、 4-二甲氨基吡啶 、 sodium hydroxide 、 N-碘代丁二酰亚胺 、 三氟甲磺酸三甲基硅酯 、 3 A molecular sieve 、 4 Angstroem MS 、 四丁基硫酸氢铵 、 sodium hydride 、 sodium cyanoborohydride 、 溶剂黄146 、 N,N'-二环己基碳二亚胺 作用下， 以 四氢呋喃 、 乙醚 、 二氯甲烷 、 水 、 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 反应 75.5h， 生成 benzyl O-(2,4,6-tri-O-benzyl-β-D-mannopyranosyl)-(1-> 4)-2-O-bemzoyl-6-O-benzyl-α-D-glucopyranoside 3,3'-succinate
  参考文献：
  名称：

  摘要：

  A series of prearranged glycosides 5, 17, 23, 28, 37 and 41, having a benzyl-protected 1-thiomannosyl donor linked through its positions 2, 3, 4 and 6 via succinate and malonate tethers, respectively, to positions 2, 3, and 6 of a benzyl glucopyranoside acceptor, were prepared by condensation of the respective mannosyl succinates and malonates with suitably protected benzyl glucopyranosides. The prearranged glycosides were intramolecularly coupled under various conditions to give the corresponding, tethered (1 --> 4)-linked disaccharides The yields and anomer ratios of the products of these couplings were interpreted in terms of the thermodynamic stability of the resulting disaccharides. In the case of prearranged glycoside 17, having positions 3 of both the donor and the acceptor linked by a succinate tether, a strong dependence of the diastereoselectivity of the intramolecular glycosylation on the activation procedure was observed. All other cases did not show a significant dependence of the outcome of the anomeric configuration in intramolecular glycosylation on the activation procedure or the solvent.

  DOI：

  10.1002/1522-2675(20001004)83:10<2655::aid-hlca2655>3.0.co;2-u