6,11-Anhydro-5,7-dideoxy-1,2-O-isopropylidene-7-C-methylidene-9-O-(methoxymethyl)-β-L-xylo-L-ido-undecofuranose | 170873-29-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 氧杂环己烷
• 英文名称: 6,11-Anhydro-5,7-dideoxy-1,2-O-isopropylidene-7-C-methylidene-9-O-(methoxymethyl)-β-L-xylo-L-ido-undecofuranose
• 英文别名: (3S,4S,5R,7R)-7-[[(3aR,5R,6S,6aR)-6-hydroxy-2,2-dimethyl-3a,5,6,6a-tetrahydrofuro[2,3-d][1,3]dioxol-5-yl]methyl]-4-(methoxymethoxy)-6-methylideneoxepane-3,5-diol
• CAS: 170873-29-7
• 化学式: C₁₇H₂₈O₉
• 分子量: 376.404
• InChiKey: FNCXZQYRQNSXFK-MFUXXGLUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.6
• 重原子数：
  26
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  116
• 氢给体数：
  3
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  乙酸酐 、 6,11-Anhydro-5,7-dideoxy-1,2-O-isopropylidene-7-C-methylidene-9-O-(methoxymethyl)-β-L-xylo-L-ido-undecofuranose 在 吡啶 、 4-二甲氨基吡啶 作用下， 以 四氢呋喃 为溶剂， 反应 1.0h， 以85%的产率得到3,8,10-Tri-O-acetyl-6,11-anhydro-5,7-dideoxy-1,2-O-isopropylidene-7-C-methylidene-9-O-(methoxymethyl)-β-L-xylo-L-ido-undecofuranose
  参考文献：
  名称：

  Synthesis of Undeculofuranoside Derivatives of the Herbicidins and of Analogs

  摘要：

  The condensation of 3-O-(tert-butyldimethylsilyl)-5-deoxy-1,2-O-isopropylidene-alpha-D-xylo-hexodialdo-1,4-furanose (obtained in six steps (35%) from D-glucurono-6,3-lactone) with the lithium enolate of (+/-)6-endo-chloro-5-endo-(methoxymethoxy)-7-oxabicyclo[2.2.1]heptan-2-one (derived in six steps (25%) from the Diels-Alder adduct of furan to 1-cyanovinyl acetate) was highly exo face selective giving two major aldols that were separated readily. One of them was converted to 6,10-anhydro-5-deoxy-1,2-O-isopropylidene-9-O-(methoymethyl)-alpha-D-arabino-L-ido-7-undeculofuranose-(1,4)-pyranose-(7,3), a semiprotected form of the long-chain carbohydrate moiety of the herbicidins. The synthesis implies the acid-promoted isomerization of 10,11-anhydro-5,7-dideoxy-1,2-O-isopropylidene-9-O-(methoxymethyl)-7-C-[(2-nitrophenyl)selenomethyl]-beta-L-ido-L-ido-undecofuranose.

  DOI：

  10.1021/jo00123a021
• 作为产物：
  描述：

  D-glucurono-3,6-lactone acetonide 在 吡啶 、 2,6-二甲基吡啶 、 sodium tetrahydroborate 、 正丁基锂 、 偶氮二异丁腈 、 三丁基膦 、 camphor-10-sulfonic acid 、 三正丁基氢锡 、 sodium methylate 、 二异丁基氢化铝 、 sodium cyanoborohydride 、 potassium carbonate 、 间氯过氧苯甲酸 、 cesium fluoride 、 六甲基二硅氮烷 作用下， 以 四氢呋喃 、 甲醇 、 正己烷 、 二氯甲烷 、 N,N-二甲基甲酰胺 、 甲苯 为溶剂， 反应 73.92h， 生成 6,11-Anhydro-5,7-dideoxy-1,2-O-isopropylidene-7-C-methylidene-9-O-(methoxymethyl)-β-L-xylo-L-ido-undecofuranose
  参考文献：
  名称：

  Synthesis of Undeculofuranoside Derivatives of the Herbicidins and of Analogs

  摘要：

  The condensation of 3-O-(tert-butyldimethylsilyl)-5-deoxy-1,2-O-isopropylidene-alpha-D-xylo-hexodialdo-1,4-furanose (obtained in six steps (35%) from D-glucurono-6,3-lactone) with the lithium enolate of (+/-)6-endo-chloro-5-endo-(methoxymethoxy)-7-oxabicyclo[2.2.1]heptan-2-one (derived in six steps (25%) from the Diels-Alder adduct of furan to 1-cyanovinyl acetate) was highly exo face selective giving two major aldols that were separated readily. One of them was converted to 6,10-anhydro-5-deoxy-1,2-O-isopropylidene-9-O-(methoymethyl)-alpha-D-arabino-L-ido-7-undeculofuranose-(1,4)-pyranose-(7,3), a semiprotected form of the long-chain carbohydrate moiety of the herbicidins. The synthesis implies the acid-promoted isomerization of 10,11-anhydro-5,7-dideoxy-1,2-O-isopropylidene-9-O-(methoxymethyl)-7-C-[(2-nitrophenyl)selenomethyl]-beta-L-ido-L-ido-undecofuranose.

  DOI：

  10.1021/jo00123a021