2-propenyl 6-O-acetyl-2,4,6-tri-O-benzyl-β-D-galactopyranoside | 125790-92-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-propenyl 6-O-acetyl-2,4,6-tri-O-benzyl-β-D-galactopyranoside
• CAS: 125790-92-3
• 化学式: C₃₂H₃₆O₇
• 分子量: 532.634
• InChiKey: ZOLLRDKJOLUZLT-UNKWROQRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.23
• 重原子数：
  39.0
• 可旋转键数：
  14.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.34
• 拓扑面积：
  72.45
• 氢给体数：
  0.0
• 氢受体数：
  7.0

反应信息

• 作为反应物：
  描述：

  2-propenyl 6-O-acetyl-2,4,6-tri-O-benzyl-β-D-galactopyranoside 在 吡啶 、 RhCl(PPh₃)3 、 4 Angstroem MS 、 三氟化硼乙醚 、 三氧化硫 、 sodium methylate 、 sodium hydride 作用下， 以 甲醇 、 乙醇 、 二氯甲烷 、 水 、 N,N-二甲基甲酰胺 、 甲苯 为溶剂， 反应 60.0h， 生成
  参考文献：
  名称：

  Synthesis of a set of di- and tri-sulfated galabioses

  摘要：

  Among cell-adhesion molecules, L-selectin recognizes sulfated sLe(x) with relatively low affinity. Here, we aimed at artificial mimics by synthesizing a set of di- and tri-sulfated galabioses, which may surpass the affinity of sulfated sLe(x). As a strategy to obtain 3',6',6-tri-O-sulfogalabioses, regioselective reductive cleavage of 4,6- and 4',6'-di-O-benzylidenegalabioses was employed. Two suitably protected galactose precursors were conjugated to yield alpha and beta anomers (48 and 18%, respectively) by using a pentenyl galactoside donor and iodinium di-sym-collidine perchlorate as the catalyst. For synthesizing the 3',6-di-O-sulfogalabiose, however, a trichloroacetimidate donor was superior (52%) to the pentenyl one (30%). (C) 2001 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0008-6215(01)00222-1
• 作为产物：
  描述：

  2-propenyl 3-O-(4-methoxybenzyl)-β-D-galactopyranoside 在 吡啶 、 sodium hydride 、 2,3-二氯-5,6-二氰基-1,4-苯醌 作用下， 以 二氯甲烷 、 水 为溶剂， 反应 1.0h， 生成 2-propenyl 6-O-acetyl-2,4,6-tri-O-benzyl-β-D-galactopyranoside
  参考文献：
  名称：

  Synthesis of a set of di- and tri-sulfated galabioses

  摘要：

  Among cell-adhesion molecules, L-selectin recognizes sulfated sLe(x) with relatively low affinity. Here, we aimed at artificial mimics by synthesizing a set of di- and tri-sulfated galabioses, which may surpass the affinity of sulfated sLe(x). As a strategy to obtain 3',6',6-tri-O-sulfogalabioses, regioselective reductive cleavage of 4,6- and 4',6'-di-O-benzylidenegalabioses was employed. Two suitably protected galactose precursors were conjugated to yield alpha and beta anomers (48 and 18%, respectively) by using a pentenyl galactoside donor and iodinium di-sym-collidine perchlorate as the catalyst. For synthesizing the 3',6-di-O-sulfogalabiose, however, a trichloroacetimidate donor was superior (52%) to the pentenyl one (30%). (C) 2001 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0008-6215(01)00222-1