methyl 4,6-O-benzylidene-3-deoxy-β-D-arabino-hexopyranoside | 138663-47-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡喃二恶英
• 英文名称: methyl 4,6-O-benzylidene-3-deoxy-β-D-arabino-hexopyranoside
• 英文别名: (2R,4aR,6R,7S,8aS)-6-methoxy-2-phenyl-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-7-ol
• CAS: 138663-47-5
• 化学式: C₁₄H₁₈O₅
• 分子量: 266.294
• InChiKey: SGFFREHBBCJPJB-ODXJTPSBSA-N

物化性质

• 沸点：
  427.1±45.0 °C(predicted)
• 密度：
  1.27±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  57.2
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  methyl 4,6-O-benzylidene-3-deoxy-β-D-arabino-hexopyranoside 在 吡啶 、 盐酸 、 4-二甲氨基吡啶 、 sodium azide 、 18-冠醚-6 、 sodium hydride 、 4,4'-二氨基二苯乙烯-2,2'-二磺酸 作用下， 以 二氯甲烷 、 水 、 溶剂黄146 、 1,2-二氯乙烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 20.5h， 生成 2-azido-4,6-di-O-benzyl-2,3-dideoxy-D-ribo-hexopyranosyl fluoride
  参考文献：
  名称：

  糖基磷脂酰肌醇（GPI）膜锚生物合成中一些早期中间体的脱氧类似物的合成

  摘要：

  描述了2-叠氮基-4,6-二-O-苄基-2,3-二脱氧-d-核糖-己吡喃糖基氟，6-O-乙酰基-2-叠氮基-3-O-苄基-2,4的合成-二脱氧-d-xylo-己吡喃糖基氟和2-叠氮基-3,4-二-O-苄基-2,6-二脱氧-d-吡喃葡萄糖基氟。这些糖基供体与受体1d-2,3,4,5-四-O-苄基-1-O-（4-甲氧基苄基）-肌醇偶联，并将α-偶联产物转化为α-d- 3dGlcpN-PI，α-d-4dGlcpN-PI和alpha-d-6dGlcpN-PI通过H-膦酸酯途径形成。简要提到了这些脱氧糖类似物及其N-乙酰化形式作为锥虫和HeLa中存在的N-脱乙酰酶和α-（1-> 4）-d-甘露糖基转移酶活性的候选底物/抑制剂的生物学评估。 （人类）无细胞系统。

  DOI：

  10.1016/j.carres.2004.02.026
• 作为产物：
  描述：

  methyl 4,6-O-(phenylmethylene)-3-deoxy-β-D-erythro-hexopyranoside-2-ulose 在 L-Selectride 作用下， 以 四氢呋喃 为溶剂， 反应 2.0h， 生成 methyl 4,6-O-benzylidene-3-deoxy-β-D-arabino-hexopyranoside
  参考文献：
  名称：

  Synthesis of monodeoxy and mono-O-methyl congeners of methyl β-d-mannopyranosyl-(1→2)-β-d-mannopyranoside for epitope mapping of anti-Candida albicans antibodies

  摘要：

  A panel of six complementary monodeoxy and mono-O-methyl congeners of methyl beta-D-mannopyranosyl-(1 -> 2)-beta-D-mannopyranoside (1) were synthesized by stereoselective glycosylation of monodeoxy and mono-O-methyl monosaccharide acceptors with a 2-O-acetyl-glucosyl trichloroacetimidate donor, followed by a two-step oxidation-reduction sequence at C-2'. The beta-manno configuration of the final deprotected congeners 2-7 was confirmed by measurement of (1)J(C1.H1) heteronuclear and (3)J(1'.2), homonuclear coupling constants. These disaccharide derivatives will be used to map the epitope recognized bit a protective anti-Candida albicans monoclonal antibody C3.1 (IgG3) and to determine its key polar contacts with the binding site. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.carres.2008.12.011

文献信息

• Regioselectivity of Reductive Cleavage of Methyl 4,6-<i>O</i>-Benzylidene-3-deoxyhexopyranosides Containing Fluorine at the 2- or 3-Position with LiAlH₄–AlCl₃
  作者：Yoko Mori、Naohiko Morishima

  DOI：10.1246/bcsj.66.2061

  日期：1993.7

  Reductive ring-opening reactions of the 4,6-O-benzylidene derivatives of methyl 3-deoxy-β-d-arabino-, 3-deoxy-α-d-ribo-, and 2-O-benzyl-3-deoxy-α-d-ribo-hexopyranosides with LiAlH4 and AlCl3 in the molar ratio of 4 : 4 gave the 4- and 6-O-benzyl derivatives in a ratio of 7 : 3. The product ratios for the reactions of methyl 4,6-O-benzylidene-2,3-dideoxy-2-fluoro-α-d-arabino- and β-d-ribo-hexopyranosides and methyl 2-O-benzyl-4,6-O-benzylidene-3-deoxy-3-fluoro-α-d-gluco- and β-d-allopyranosides were 3 : 2, 2 : 3, 1 : 1, and 3 : 7, respectively. When the molar ratio of the reagents was 2 : 4, however, the product ratios for the reactions of all the above-mentioned 4,6-O-benzylidene derivatives were approximately equal to 4 : 1. The influence of fluorine at C-2 or C-3, as well as that of the molar ratios of LiAlH4 and AlCl3, on the regioselectivity of the reductive cleavage of 4,6-O-benzylidenehexopyranosides are discussed.

  甲基 3-脱氧-β-d-阿拉伯苷、3-脱氧-α-d-核苷和 2-O-苄基-3-脱氧-α-d-核六吡喃糖苷的 4,6-O-亚苄基衍生物与 LiAlH4 和 AlCl3 按 4 : 4 的摩尔比进行还原开环反应，得到 4-和 6-O-苄基衍生物，比例为 7 : 3。甲基 4,6-O-亚苄基-2,3-二脱氧-2-氟-α-d-阿拉伯和 β-d-核吡喃糖苷与甲基 2-O-苄基-4,6-O-亚苄基-3-脱氧-3-氟-α-d-葡糖和 β-d-全吡喃糖苷反应的产物比分别为 3:2、2:3、1:1 和 3:7。然而，当试剂的摩尔比为 2 : 4 时，上述所有 4,6-O-亚苄基衍生物反应的产物比约为 4 : 1。本文讨论了 C-2 或 C-3 上的氟以及 LiAlH4 和 AlCl3 的摩尔比对 4,6-O-亚苄基吡喃己糖苷还原裂解反应的区域选择性的影响。
• Analogues of d -glucosaminylphosphatidylinositol: synthesis of the glycosyl donors
  作者：Alexander P Dix、Charles N Borissow、Michael A.J Ferguson、John S Brimacombe

  DOI：10.1016/s0040-4039(00)01900-6

  日期：2001.1

  Appropriately protected deoxy and other analogues of 2-azido-2-deoxy-D-glucopyranosyl fluoride have been synthesised preparatory to inclusion into analogues of the D-glucosaminylphosphatidylinositol 1. (C) 2000 Elsevier Science Ltd. All rights reserved.
• The synthesis of some deoxygenated analogues of early intermediates in the biosynthesis of glycosylphosphatidylinositol (GPI) membrane anchors
  作者：Alexander P. Dix、Charles N. Borissow、Michael A.J. Ferguson、John S. Brimacombe

  DOI：10.1016/j.carres.2004.02.026

  日期：2004.5

  Syntheses are described of 2-azido-4,6-di-O-benzyl-2,3-dideoxy-d-ribo-hexopyranosyl fluoride, 6-O-acetyl-2-azido-3-O-benzyl-2,4-dideoxy-d-xylo-hexopyranosyl fluoride and 2-azido-3,4-di-O-benzyl-2,6-dideoxy-d-glucopyranosyl fluoride. These glycosyl donors were coupled with the acceptor 1d-2,3,4,5-tetra-O-benzyl-1-O-(4-methoxybenzyl)-myo-inositol and the alpha-coupled products were transformed into alpha-d-3dGlcpN-PI

  描述了2-叠氮基-4,6-二-O-苄基-2,3-二脱氧-d-核糖-己吡喃糖基氟，6-O-乙酰基-2-叠氮基-3-O-苄基-2,4的合成-二脱氧-d-xylo-己吡喃糖基氟和2-叠氮基-3,4-二-O-苄基-2,6-二脱氧-d-吡喃葡萄糖基氟。这些糖基供体与受体1d-2,3,4,5-四-O-苄基-1-O-（4-甲氧基苄基）-肌醇偶联，并将α-偶联产物转化为α-d- 3dGlcpN-PI，α-d-4dGlcpN-PI和alpha-d-6dGlcpN-PI通过H-膦酸酯途径形成。简要提到了这些脱氧糖类似物及其N-乙酰化形式作为锥虫和HeLa中存在的N-脱乙酰酶和α-（1-> 4）-d-甘露糖基转移酶活性的候选底物/抑制剂的生物学评估。 （人类）无细胞系统。
• Synthesis of monodeoxy and mono-O-methyl congeners of methyl β-d-mannopyranosyl-(1→2)-β-d-mannopyranoside for epitope mapping of anti-Candida albicans antibodies
  作者：Corwin M. Nycholat、David R. Bundle

  DOI：10.1016/j.carres.2008.12.011

  日期：2009.3

  A panel of six complementary monodeoxy and mono-O-methyl congeners of methyl beta-D-mannopyranosyl-(1 -> 2)-beta-D-mannopyranoside (1) were synthesized by stereoselective glycosylation of monodeoxy and mono-O-methyl monosaccharide acceptors with a 2-O-acetyl-glucosyl trichloroacetimidate donor, followed by a two-step oxidation-reduction sequence at C-2'. The beta-manno configuration of the final deprotected congeners 2-7 was confirmed by measurement of (1)J(C1.H1) heteronuclear and (3)J(1'.2), homonuclear coupling constants. These disaccharide derivatives will be used to map the epitope recognized bit a protective anti-Candida albicans monoclonal antibody C3.1 (IgG3) and to determine its key polar contacts with the binding site. (C) 2009 Elsevier Ltd. All rights reserved.