2-naphthyl 2,4-di-O-benzyl-β-D-xylopyranoside | 1315279-66-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-naphthyl 2,4-di-O-benzyl-β-D-xylopyranoside
• CAS: 1315279-66-3
• 化学式: C₂₉H₂₈O₅
• 分子量: 456.538
• InChiKey: YMCROHFLSMNOGJ-AIQXTLEGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.11
• 重原子数：
  34.0
• 可旋转键数：
  8.0
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.24
• 拓扑面积：
  57.15
• 氢给体数：
  1.0
• 氢受体数：
  5.0

反应信息

• 作为反应物：
  描述：

  2-naphthyl 2,4-di-O-benzyl-β-D-xylopyranoside 在 盐酸 、 palladium 10% on activated carbon 、 氢气 、 戴斯-马丁氧化剂 作用下， 以 乙醚 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 6.5h， 生成
  参考文献：
  名称：

  Rules for priming and inhibition of glycosaminoglycan biosynthesis; probing the β4GalT7 active site

  摘要：

  Xylose是GAG生物合成中必需的酶β4GalT7的最佳底物，但类似物作为有效的抑制剂。

  DOI：

  10.1039/c4sc01244e
• 作为产物：
  描述：

  溴甲苯 、 naphth-2-yl β-D-xylopyranoside 在 四丁基碘化铵 、 potassium hydroxide 作用下， 以 二氯甲烷 、 水 为溶剂， 反应 16.0h， 以6%的产率得到2-naphthyl 3,4-di-O-benzyl-β-D-xylopyranoside
  参考文献：
  名称：

  Rules for priming and inhibition of glycosaminoglycan biosynthesis; probing the β4GalT7 active site

  摘要：

  Xylose是GAG生物合成中必需的酶β4GalT7的最佳底物，但类似物作为有效的抑制剂。

  DOI：

  10.1039/c4sc01244e

文献信息

• Synthesis, conformation and biology of naphthoxylosides
  作者：Anna Siegbahn、Ulrika Aili、Agata Ochocinska、Martin Olofsson、Jerk Rönnols、Katrin Mani、Göran Widmalm、Ulf Ellervik

  DOI：10.1016/j.bmc.2011.05.007

  日期：2011.7

  Proteoglycans (PG) are polyanionic proteins consisting of a core protein substituted with carbohydrate chains, that is, glycosaminoglycans (GAG). The biosynthesis of GAG can be manipulated by simple xylosides carrying hydrophobic aglycons, which can enter the cell and initiate the biosynthesis. While the importance of the aglycon is well investigated, there is far less information on the effect of modifications in the xylose residue.We have developed a new synthetic protocol, based on acetal protection and selective benzylation, for modification of the three hydroxyl groups in xylose. Thus we have synthesized twelve analogs of 2-naphthyl beta-D-xylopyranoside (XylNap), where each hydroxyl group has been epimerized or replaced by methoxy, fluoro, or hydrogen.To gain more information about the properties of xylose, conformational studies were made on some of the analogs. It was found that the (4)C(1) conformation is highly predominant, accompanied by a nonnegligible population of the (2)S(0) conformation. However, deoxygenation at C3 results in a large portion of the (1)C(4) conformation.The GAG priming ability and proliferation activity of the twelve analogs, were investigated using a matched pair of human breast fibroblasts and human breast carcinoma cells. None of the analogs initiated the biosynthesis of GAG, but an inhibitory effect on endogenous PG production was observed for analogs fluorinated or deoxygenated at C4. From our data it seems reasonable that all three hydroxyl groups in XylNap are essential for the priming of GAG chains and for selective toxicity for tumor cells. (C) 2011 Elsevier Ltd. All rights reserved.