tert-butyl-[[(2R,3S,5S,6S)-6-methoxy-4-methylidene-3,5-bis(phenylmethoxy)oxan-2-yl]methoxy]-diphenylsilane | 466646-17-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: tert-butyl-[[(2R,3S,5S,6S)-6-methoxy-4-methylidene-3,5-bis(phenylmethoxy)oxan-2-yl]methoxy]-diphenylsilane
• CAS: 466646-17-3
• 化学式: C₃₈H₄₄O₅Si
• 分子量: 608.85
• InChiKey: GUSXZBYOSGZXBD-HQPLKVBUSA-N

物化性质

• 沸点：
  649.6±55.0 °C(Predicted)
• 密度：
  1.12±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  6.66
• 重原子数：
  44
• 可旋转键数：
  13
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.32
• 拓扑面积：
  46.2
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  tert-butyl-[[(2R,3S,5S,6S)-6-methoxy-4-methylidene-3,5-bis(phenylmethoxy)oxan-2-yl]methoxy]-diphenylsilane 在 重铬酸吡啶 、 硼烷四氢呋喃络合物 作用下， 以 二氯甲烷 为溶剂， 生成 (2R,3S,4R,5S,6S)-2-[[tert-butyl(diphenyl)silyl]oxymethyl]-6-methoxy-3,5-bis(phenylmethoxy)oxane-4-carbaldehyde
  参考文献：
  名称：

  Application of the Anomeric Samarium Route for the Convergent Synthesis of the C-Linked Trisaccharide α-d-Man-(1→3)-[α-d-Man-(1→6)]-d-Man and the Disaccharides α-d-Man-(1→3)-d-Man and α-d-Man-(1→6)-d-Man

  摘要：

  Studies are reported on the assembly of the branched C-trisaccharide, alpha-D-Man-(1-->3)-[alpha-D-Man-(1-->6)]-D-Man, representing the core region of the asparagine-linked oligosaccharides. The key step in this synthesis uses a SmI2-mediated coupling of two mannosylpyridyl sulfones to a C3,C6-diformyl branched monosaccharide unit, thereby assembling all three sugar units in one reaction and with complete stereocontrol at the two anomeric carbon centers. Subsequent tin hydride-based deoxygenation followed by a deprotection step produces the target C-trimer. In contrast to many of the other C-glycosylation methods, this approach employes intact carbohydrate units as C-glycosyl donors and acceptors, which in many instances parallels the well-studied O-glycosylation reactions. The synthesis of the C-disaccharides alpha-D-Man-(1-->3)-D-Man and alpha-D-Man-(1-->6)-D-Man is also described, they being necessary for the following conformational studies of all three carbohydrate analogues both in solution and bound to several mannose-binding proteins.

  DOI：

  10.1021/jo020339z
• 作为产物：
  描述：

  甲基2,4-二-O-苄基吡喃己糖苷 在 吡啶 、 咪唑 、 二甲基亚砜 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 为溶剂， 生成 tert-butyl-[[(2R,3S,5S,6S)-6-methoxy-4-methylidene-3,5-bis(phenylmethoxy)oxan-2-yl]methoxy]-diphenylsilane
  参考文献：
  名称：

  Application of the Anomeric Samarium Route for the Convergent Synthesis of the C-Linked Trisaccharide α-d-Man-(1→3)-[α-d-Man-(1→6)]-d-Man and the Disaccharides α-d-Man-(1→3)-d-Man and α-d-Man-(1→6)-d-Man

  摘要：

  Studies are reported on the assembly of the branched C-trisaccharide, alpha-D-Man-(1-->3)-[alpha-D-Man-(1-->6)]-D-Man, representing the core region of the asparagine-linked oligosaccharides. The key step in this synthesis uses a SmI2-mediated coupling of two mannosylpyridyl sulfones to a C3,C6-diformyl branched monosaccharide unit, thereby assembling all three sugar units in one reaction and with complete stereocontrol at the two anomeric carbon centers. Subsequent tin hydride-based deoxygenation followed by a deprotection step produces the target C-trimer. In contrast to many of the other C-glycosylation methods, this approach employes intact carbohydrate units as C-glycosyl donors and acceptors, which in many instances parallels the well-studied O-glycosylation reactions. The synthesis of the C-disaccharides alpha-D-Man-(1-->3)-D-Man and alpha-D-Man-(1-->6)-D-Man is also described, they being necessary for the following conformational studies of all three carbohydrate analogues both in solution and bound to several mannose-binding proteins.

  DOI：

  10.1021/jo020339z