(E)-1,4-bis[tert-butyldimethylsilyl 3'-trifluoroacetamido-2',3',6'-trideoxy-β-L-ribo-hexopyranos-4'-yl]-2-butene-1,4-diol | 467431-74-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (E)-1,4-bis[tert-butyldimethylsilyl 3'-trifluoroacetamido-2',3',6'-trideoxy-β-L-ribo-hexopyranos-4'-yl]-2-butene-1,4-diol
• CAS: 467431-74-9
• 化学式: C₃₂H₅₆F₆N₂O₈Si₂
• 分子量: 766.967
• InChiKey: QYVWDBLQZZHIPK-PBTZDKPGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.72
• 重原子数：
  50.0
• 可旋转键数：
  12.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  113.58
• 氢给体数：
  2.0
• 氢受体数：
  8.0

反应信息

• 作为反应物：
  描述：

  (E)-1,4-bis[tert-butyldimethylsilyl 3'-trifluoroacetamido-2',3',6'-trideoxy-β-L-ribo-hexopyranos-4'-yl]-2-butene-1,4-diol 生成 N-((2S,3R,4R,6R)-6-(tert-Butyl-dimethyl-silanyloxy)-3-{4-[(2S,3R,4R,6R)-6-(tert-butyl-dimethyl-silanyloxy)-2-methyl-4-(2,2,2-trifluoro-acetylamino)-tetrahydro-pyran-3-yloxy]-butoxy}-2-methyl-tetrahydro-pyran-4-yl)-2,2,2-trifluoro-acetamide
  参考文献：
  名称：

  Synthesis of extended spacer-linked neooligodeoxysaccharides by metathesis olefination and evaluation of their RNA-binding properties

  摘要：

  The preparation of linear 1,4-butanediol-linked oligodeoxysugars 50-53, 58 and 60 is described which are potential binders to polynucleotides. Various aminodeoxymonosaccharides 9, 13-18, 30, 31 and 40-42 which are either allylated at the anomeric center or at C4 were subjected to the metathesis olefination protocol. Depending on the position of allylation E/Z-mixtures of C-2-symmetric head-to-head or tail-to-tail homodimers were formed. Among them, saccharides 13, 30, 31 and 40 were transformed into the corresponding 1,4-butanediol linked disaccharides 50-53 by catalytic hydrogenation of the central olefinic double bond and exhaustive deprotection. In order to target extended spacer-linked neooligosaccharides homodimeric aminoglycoside 37 was bisallylated and subjected to cross metathesis conditions using methyl 4-O-allyl daunosamide 40 as reaction partner which yielded two desired trimeric and tetrameric linearly spacer-linked daunosamine derivatives. After hydrogenation and deprotection two additional probes 58 and 60 for nucleic acid binding studies were at hand. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.02.013
• 作为产物：
  描述：

  Acetic acid (2S,3R)-4-azido-6-(tert-butyl-dimethyl-silanyloxy)-2-methyl-tetrahydro-pyran-3-yl ester 在 Grubbs catalyst first generation lithium aluminium tetrahydride 、 sodium methylate 、 三乙胺 、 silver(l) oxide 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 乙腈 、 苯 为溶剂， 反应 49.5h， 生成 (E)-1,4-bis[tert-butyldimethylsilyl 3'-trifluoroacetamido-2',3',6'-trideoxy-β-L-ribo-hexopyranos-4'-yl]-2-butene-1,4-diol
  参考文献：
  名称：

  First Preparation of Spacer-Linked Cyclic Neooligoaminodeoxysaccharides

  摘要：

  The preparation of novel cyclic 1,4-butanediol-linked oligoaminodeoxysugars 3-5 and 7 is described which are potential binders to polynucleotides. Neooligosaccharides 3-5 are assembled by two consecutive metathesis protocols. In the first phase metathesis-mediated dimerization of an aminodeoxymonosaccharide which was either allylated at the anomeric center or at C4 led to E/Z mixtures of C-2-symmetric homodimers which were transformed into the corresponding 1,4-butanediol linked disaccharides by catalytic hydrogenation of the central olefinic double bond. Double O-allylation of the head-to-head dimer set the stage for macrocyclization by means of ring-closing metathesis. This ring-closing process was highly dependent of the configuration in the carbohydrate moieties. arabino-Configured homodimer 15 directly yielded the macrocycle 32 which contains two sugar units while under the same metathesis conditions the corresponding ribo-configured starting homodimer 19 afforded cyclic neotetra- and neohexasaccharides 34 and 35 after a preceding dimerization and trimerization step, respectively. In addition, homodimer 23 was coupled with silylglycoside 14a under Lewis-acid promoted glycosidation conditions to furnish the doubly glycosylated homodimer 31. Ring-closing metathesis afforded the macrocyclic neoaminodeoxyoligosaccharide 36 with alternating 1,4-butanediol linkage and glycosidic bond. The primary cyclization products were finally transformed into the respective cyclic neoaminodeoxyoligosaccharides 3-5 and 7 by catalytic hydrogenation and standard deprotection conditions.

  DOI：

  10.1002/1521-3765(20020617)8:12<2717::aid-chem2717>3.0.co;2-p