(R)-tert-Butoxycarbonylamino-((2S,3S,4R,5S,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-acetic acid methyl ester | 191997-87-2

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: (R)-tert-Butoxycarbonylamino-((2S,3S,4R,5S,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-acetic acid methyl ester
• 英文别名: methyl (2R)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-2-[(2S,3S,4R,5S,6R)-3,4,5-tris(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]acetate
• CAS: 191997-87-2
• 化学式: C₄₂H₄₉NO₉
• 分子量: 711.852
• InChiKey: VBBLIOXWDNXEDL-ZDEACVEBSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.2
• 重原子数：
  52
• 可旋转键数：
  19
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  111
• 氢给体数：
  1
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  (R)-tert-Butoxycarbonylamino-((2S,3S,4R,5S,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-acetic acid methyl ester 在 三氟乙酸 作用下， 以 二氯甲烷 为溶剂， 生成
  参考文献：
  名称：

  General Synthesis of C-Glycosyl Amino Acids via Proline-Catalyzed Direct Electrophilic α-Amination of C-Glycosylalkyl Aldehydes

  摘要：

  Non-natural axially and equatorially linked C-glycosyl alpha-amino acids (glycines, alanines, and CH2-serine isosteres) with either S or R alpha-configuration were prepared by D- and L-proline-catalyzed (de > 95%) alpha-amination of C-glycosylalkyl aldehydes using dibenzyl azodicarboxylate as the electrophilic reagent.

  DOI：

  10.1021/ol801685x
• 作为产物：
  描述：

  重氮甲烷 、 (R)-tert-Butoxycarbonylamino-((2S,3S,4R,5S,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-acetic acid 以 吡啶 为溶剂， 生成 (R)-tert-Butoxycarbonylamino-((2S,3S,4R,5S,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-acetic acid methyl ester
  参考文献：
  名称：

  Stereoselective Addition of 2-Furyllithium and 2-Thiazolyllithium to Sugar Nitrones. Synthesis of Carbon-Linked Glycoglycines

  摘要：

  A route to epimeric carbon-linked glycoglycines that exploits the stereoselective addition of 2-lithiofuran and 2-lithiothiazole to sugar nitrones has been described. The reaction occurs with opposite diastereofacial selectivity depending on whether the free nitrone or the diethyl aluminum chloride precomplexed derivative is employed. The resulting furyl or thiazolyl hydroxylamines are dehydroxylated to amines by the action of titanium(III) chloride. From these compounds the amino acids are revealed by the oxidative cleavage of the furan ring or by the conversion of the thiazole into the formyl group and oxidation to carboxylic acid. Compounds have been prepared wherein the alpha-amino acid moiety is installed at C-4 and C-1 of furanoses (ribo, manno, xylo, and lyxo) and at C-5 and C-1 of a pyranose (galacto).

  DOI：

  10.1021/jo970290a