allyl 2,4,6-tribenzyl-3-p-methoxybenzyl-β-D-galactopyranoside | 389119-60-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: allyl 2,4,6-tribenzyl-3-p-methoxybenzyl-β-D-galactopyranoside
• 英文别名: Bn(-2)[Mob(-3)][Bn(-4)][Bn(-6)]Gal(b)-O-allyl；(2R,3S,4S,5R,6R)-4-[(4-methoxyphenyl)methoxy]-3,5-bis(phenylmethoxy)-2-(phenylmethoxymethyl)-6-prop-2-enoxyoxane
• CAS: 389119-60-2
• 化学式: C₃₈H₄₂O₇
• 分子量: 610.747
• InChiKey: DPQVKRVFNPLGLH-XGQCJEBPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.1
• 重原子数：
  45
• 可旋转键数：
  17
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.32
• 拓扑面积：
  64.6
• 氢给体数：
  0
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  allyl 2,4,6-tribenzyl-3-p-methoxybenzyl-β-D-galactopyranoside 在 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 (2R,3R,4S,5R,6R)-2-Allyloxy-3,5-bis-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-4-ol
  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：

  allyl β-D-galactopyranoside 在 四丁基碘化铵 、 sodium hydride 、 溶剂黄146 作用下， 反应 1.33h， 生成 allyl 2,4,6-tribenzyl-3-p-methoxybenzyl-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

文献信息

• Synthesis of a set of di- and tri-sulfated galabioses
  作者：Tomoaki Yoshida、Taku Chiba、Takashi Yokochi、Kikuo Onozaki、Tsuyoshi Sugiyama、Izumi Nakashima

  DOI：10.1016/s0008-6215(01)00222-1

  日期：2001.10

  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.