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p-methoxyphenyl 3,6-di-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranoside-methyl 4',6'-O-(1,1,3,3-tetraisopropyl)disiloxanylidene-3'-O-trimethylsilyl-1'-thio-α-D-mannopyranoside-2',4-p-methoxybenzylidene acetal | 215722-18-2

中文名称
——
中文别名
——
英文名称
p-methoxyphenyl 3,6-di-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranoside-methyl 4',6'-O-(1,1,3,3-tetraisopropyl)disiloxanylidene-3'-O-trimethylsilyl-1'-thio-α-D-mannopyranoside-2',4-p-methoxybenzylidene acetal
英文别名
2-[(2S,3R,4R,5S,6R)-5-[(S)-[(6aR,8R,9S,10R,10aR)-8-methylsulfanyl-2,2,4,4-tetra(propan-2-yl)-10-trimethylsilyloxy-6,6a,8,9,10,10a-hexahydropyrano[3,2-f][1,3,5,2,4]trioxadisilocin-9-yl]oxy-(4-methoxyphenyl)methoxy]-2-(4-methoxyphenoxy)-4-phenylmethoxy-6-(phenylmethoxymethyl)oxan-3-yl]isoindole-1,3-dione
p-methoxyphenyl 3,6-di-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranoside-methyl 4',6'-O-(1,1,3,3-tetraisopropyl)disiloxanylidene-3'-O-trimethylsilyl-1'-thio-α-D-mannopyranoside-2',4-p-methoxybenzylidene acetal化学式
CAS
215722-18-2
化学式
C65H87NO15SSi3
mdl
——
分子量
1238.73
InChiKey
PBUAXPDWERHBOO-DSSACKHZSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    13.01
  • 重原子数:
    85
  • 可旋转键数:
    24
  • 环数:
    9.0
  • sp3杂化的碳原子比例:
    0.51
  • 拓扑面积:
    183
  • 氢给体数:
    0
  • 氢受体数:
    16

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

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文献信息

  • Synthesis of a novel asparagine-linked heptasaccharide structure via p-methoxybenzyl-assisted β-mannosylation
    作者:Yuki Ohnishi、Hiromune Ando、Tsubasa Kawai、Yoshiaki Nakahara、Yukishige Ito
    DOI:10.1016/s0008-6215(00)00123-3
    日期:2000.9
    Synthesis of a core heptasaccharide asparagine N-4-(alpha-D-mannopyranosyl-(1 --> 6)-[(alpha-D-mannopyranosyl)-(1 --> 3)]-[(2-acetamido-2-deoxy-beta-D-glucopyranosyl)-(1 --> 2)]-(beta-D-mannopyranosyl)-(1 --> 4)-(2-acetamido-2-deoxy-beta-D-glucopyranosyl)-(1 --> 4)-[(alpha-L-fucopyranosyl)-(1 --> 6)]-2-acetamido-2-deoxy-beta-D-glucopyranosyl)-L-asparagine (1a) found from CHO glycosylation mutant cell LEC 1 4 is described. The structure of la is highly novel in terms of the presence of an extra GlcNAc residue linked to the 2 position of beta-linked mannose. The synthesis was performed using p-methoxybenzyl-assisted intramolecular aglycon delivery as the key transformation. 4,6-O-TIDPS-protected thiomannoside methyl 2-O-p-methoxybenzyl-4,6-O-(1,1,3,3-tetraisopropyl)disiloxanylidene-3-O-trimethylsilyl-1-thio-alpha-D-mannopyranoside was adopted for this particular purpose, in which afforded beta-mannoside p-methoxyphenyl 2,3-O-(p-methoxybenzylidene)-4,6-O-(1,1,3,3-tetraisopropyl)disiloxanylidene-beta-D-mannopyranosyl-(1 --> 4)-3,6-di-O-benzyl-2-deoxy-2-phthalimido-beta-D-glucopyranoside stereoselectively in 75% yield. (C) 2000 Elsevier Science Ltd. All rights reserved.
  • On the mechanism of p-methoxybenzylidene assisted intramolecular aglycon delivery
    作者:Yukishige Ito、Hiromune Ando、Megumi Wada、Tsubasa Kawai、Yuki Ohnish、Yoshiaki Nakahara
    DOI:10.1016/s0040-4020(01)00300-3
    日期:2001.5
    p-Methoxybenzylidene-assisted intramolecular aglycon delivery was developed in this laboratory and has been demonstrated to be highly efficient and versatile particularly for the synthesis of complex glycoprotein-related glycans. It was revealed that the reaction course of IAD can be clearly monitored by performing the reaction in an NMR tube. Our results suggest that the nonhydrolytic pathway that
    在该实验室中开发了对甲氧基苄叉基辅助的分子内糖苷配基递送,并且已被证明是高效且通用的,特别是对于复杂糖蛋白相关聚糖的合成。揭示了通过在NMR管中进行反应可以清楚地监测IAD的反应过程。我们的结果表明,将亚稳态中间体3转化为产物的非水解途径是有功能的。在反应介质中存在和不存在水的情况下进行的对比实验提供了支持性证据,消除了在标准IAD条件下水被偶然污染的可能性。
  • Highly Optimized <i>β</i>-Mannosylation via <i>p</i>-Methoxybenzyl Assisted Intramolecular Aglycon Delivery
    作者:Yukishige Ito、Yuki Ohnishi、Tomoya Ogawa、Yoshiaki Nakahara
    DOI:10.1055/s-1998-1894
    日期:1998.10
    Highly efficient and stereoselective β-mannosylation was achieved by using mannosyl thioglycosides 5 and 19. Intramolecular aglycon delivery (IAD) from mixed acetal 12, 15 and 20, obtainable by oxidative coupling of aglycon onto mannosyl thio-glycosides which carry p-methoxybenzyl (PMB) group at C-2 position, was performed by the action of MeOSO2CF3 to afford β-mannosides 13/16/21. It is to be noted that efficiency of IAD was substantially improved by changing the protecting group at the 4- and 6-positions from previously utilized benzylidene to cyclohexylidene (5) or TIPDS (19) group. As a result, it is now possible to perform the β-manno glycosylation in a highly optimized manner to afford di- and trisaccharides with a backbone structure corresponding to asparagine-linked oligosaccharides in 75-85% yield as single stereoisomers.
    使用甘露糖基硫代糖苷 5 和 19 实现了高效和立体选择性δ-甘露糖基化。在 MeOSO2CF3 的作用下,混合缩醛 12、15 和 20 中的苷元通过氧化偶联到 C-2 位带对甲氧基苄基(PMB)的甘露糖基硫代糖苷上,实现了分子内苷元传递(IAD),从而得到δ-甘露糖苷 13/16/21。值得注意的是,通过将 4-位和 6-位的保护基团从之前使用的亚苄基改为亚环己基(5)或 TIPDS(19)基团,IAD 的效率大大提高。因此,现在有可能以高度优化的方式进行δ-甘露糖基化,以 75%-85% 的产率获得具有与天冬酰胺连接的低聚糖相对应的骨架结构的二糖和三糖单个立体异构体。
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