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(2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl)-(1->4)-7-O-acetyl-1,6-anhydro-2,3-O-isopropylidene-L-glycero-β-D-manno-heptopyranose | 215381-19-4

中文名称
——
中文别名
——
英文名称
(2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl)-(1->4)-7-O-acetyl-1,6-anhydro-2,3-O-isopropylidene-L-glycero-β-D-manno-heptopyranose
英文别名
[(2R,3R,4S,5R,6S)-6-[[(1R,2S,6S,7R,8R,9S)-9-(acetyloxymethyl)-4,4-dimethyl-3,5,10,11-tetraoxatricyclo[6.2.1.02,6]undecan-7-yl]oxy]-3,4,5-tribenzoyloxyoxan-2-yl]methyl benzoate
(2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl)-(1->4)-7-O-acetyl-1,6-anhydro-2,3-O-isopropylidene-L-glycero-β-D-manno-heptopyranose化学式
CAS
215381-19-4
化学式
C46H44O16
mdl
——
分子量
852.846
InChiKey
JMOPDIUMMGXGHI-JAHASFSISA-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):
    6.2
  • 重原子数:
    62
  • 可旋转键数:
    18
  • 环数:
    8.0
  • sp3杂化的碳原子比例:
    0.37
  • 拓扑面积:
    187
  • 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

  • 作为反应物:
    描述:
    (2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl)-(1->4)-7-O-acetyl-1,6-anhydro-2,3-O-isopropylidene-L-glycero-β-D-manno-heptopyranose溶剂黄146 作用下, 以 为溶剂, 以85%的产率得到(2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl)-(1->4)-7-O-acetyl-1,6-anhydro-L-glycero-β-D-manno-heptopyranose
    参考文献:
    名称:
    支链三糖L-甘油-α-D-甘露聚糖基(1→3)-[β-D-吡喃葡萄糖基((1→4)]-L-甘油-α-D-甘露聚糖-七糖的合成允许灵活访问奈瑟氏球菌和嗜血杆菌LPS核心结构
    摘要:
    摘要有效合成受保护的支链三糖(2'S,3'S)-(7-O-苄基-6-O-氯乙酰基-3,4-O-(2',3'-二甲氧基丁烷-2', 3′-二基)-2-氧-对甲氧基苄基-L-甘油-α-D-甘露聚糖-七吡喃糖基)-(1→3)-[(2,3,4,6-四-O-苯甲酰基-β -D-吡喃葡萄糖基)((1→4)]-7-O-乙酰基-1,6-脱水-2-O-苄基-L-甘油-β-D-甘露聚糖描述了嗜血杆菌和奈瑟氏球菌LPSs的核心结构的合成。使用苄氧甲基氯或市售的乙烯基试剂通过格氏反应形成庚糖。脱水桥是通过用FeCl3处理6-OH甲基α-庚糖苷前体而形成的。保护基模式允许在第二个庚糖部分的2位,3位,4位和6位进行修饰,并且在无水桥乙酰化后,还可以在还原端进行延伸,
    DOI:
    10.1081/car-200044580
  • 作为产物:
    参考文献:
    名称:
    支链三糖L-甘油-α-D-甘露聚糖基(1→3)-[β-D-吡喃葡萄糖基((1→4)]-L-甘油-α-D-甘露聚糖-七糖的合成允许灵活访问奈瑟氏球菌和嗜血杆菌LPS核心结构
    摘要:
    摘要有效合成受保护的支链三糖(2'S,3'S)-(7-O-苄基-6-O-氯乙酰基-3,4-O-(2',3'-二甲氧基丁烷-2', 3′-二基)-2-氧-对甲氧基苄基-L-甘油-α-D-甘露聚糖-七吡喃糖基)-(1→3)-[(2,3,4,6-四-O-苯甲酰基-β -D-吡喃葡萄糖基)((1→4)]-7-O-乙酰基-1,6-脱水-2-O-苄基-L-甘油-β-D-甘露聚糖描述了嗜血杆菌和奈瑟氏球菌LPSs的核心结构的合成。使用苄氧甲基氯或市售的乙烯基试剂通过格氏反应形成庚糖。脱水桥是通过用FeCl3处理6-OH甲基α-庚糖苷前体而形成的。保护基模式允许在第二个庚糖部分的2位,3位,4位和6位进行修饰,并且在无水桥乙酰化后,还可以在还原端进行延伸,
    DOI:
    10.1081/car-200044580
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文献信息

  • Synthesis of a Branched Heptose- and Kdo-Containing Common Tetrasaccharide Core Structure of <i>Haemophilus </i><i>i</i><i>nfluenzae</i> Lipopolysaccharides via a 1,6-Anhydro-<scp>l</scp>-<i>g</i><i>lycero</i>-β-<scp>d</scp>-<i>m</i><i>anno-</i>heptopyranose Intermediate
    作者:Christian Bernlind、Stefan Oscarson
    DOI:10.1021/jo9808573
    日期:1998.10.1
    The synthesis of a common tetrasaccharide core structure of Haemophilus influenzae lipopolysaccharides, beta-D-glucopyranosyl-(1-->4)-[L-glycero-alpha-D-manno-heptopyranosyl-(1-->3)]-L-glycero-alpha-D-manno-heptopyranosyl-(1-->5)-3-deoxy-alpha-D-manno-octulopyranoside and the trisaccharide beta-D-glucopyranosyl-(1-->4)-[L-glycero-alpha-D-manno-heptopyranosyl-(1-->3)]-L-glycero-alpha-D-manno-heptopyranoside is described. The oligosaccharides are synthesized as glycosides of a bifunctional spacer, 2-(4-aminophenyl)ethanol, to allow the subsequent formation of immunogenic glycoconjugates, which will be evaluated as well-defined glycoconjugate vaccine candidates. The syntheses of the 3,4-branched structures were accomplished using a 1,6-anhydro-L-glycero-beta-D-manno-heptopyranose intermediate to diminish the steric crowding between the 3- and 1-substituent. This intermediate was effectively synthesized from a mannose precursor via a stereoselective one-carbon elongation using a Barbier reaction (which was found to be more convenient than a Grignard reaction) and anhydro bridge formation through an internal glycosylation of a 6-O-trimethylsilylated ethyl thioheptoside using NIS/TfOH as a promoter. The 3- and 4-substituent were readily introduced into the 1,6-anhydro intermediate by glycosylation reactions using thioglycosides as donors and NIS/TfOH as a promoter, a task which has not been possible using accepters with equatorial 3,4-substituents. Acetolysis of the anhydro bridge followed by conversion into the ethyl thioglycoside afforded a trisaccharide donor, which, in NIS/TfOH-promoted couplings to the spacer and to a Kdo acceptor followed by deprotection, efficiently gave the two target compounds.
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