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2β-bromo-3β-hydroxy-4,7,8,9-tetra-O-acetyl-N-acetylneuraminic acid methyl ester | 109681-08-5

中文名称
——
中文别名
——
英文名称
2β-bromo-3β-hydroxy-4,7,8,9-tetra-O-acetyl-N-acetylneuraminic acid methyl ester
英文别名
methyl 5-acetamido-4,7,8,9-tetra-O-acetyl-2-bromo-2,5-dideoxy-β-D-erythro-L-gluco-2-nonulopyranosonate;methyl 5-acetamido-4,7,8,9-tetra-O-acetyl-5-deoxy-2-bromo-D-erythro-α-L-gluco-2-nonulopyranosonate;methyl 5-acetamido-4,7,8,9-tetra-O-acetyl-2-bromo-2,5-dideoxy-β-D-erythro-L-gluco-2-nonulopyrasonate;methyl 5-acetamido-4,7,8,9-tetra-O-acetyl-2-bromo-2,5-dideoxy-D-erythro-α-L-gluco-non-2-ulopyranosonate;methyl (2R,3S,4R,5R,6R)-5-acetamido-4-acetyloxy-2-bromo-3-hydroxy-6-[(1S,2R)-1,2,3-triacetyloxypropyl]oxane-2-carboxylate
2β-bromo-3β-hydroxy-4,7,8,9-tetra-O-acetyl-N-acetylneuraminic acid methyl ester化学式
CAS
109681-08-5
化学式
C20H28BrNO13
mdl
——
分子量
570.345
InChiKey
WLHODBRWGKEDAI-LWVBTJSSSA-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

物化性质

  • 沸点:
    618.5±55.0 °C(Predicted)
  • 密度:
    1.50±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    -0.4
  • 重原子数:
    35
  • 可旋转键数:
    14
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.7
  • 拓扑面积:
    190
  • 氢给体数:
    2
  • 氢受体数:
    13

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
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量
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    • 2
    • 3
    • 4
    • 5
    • 6
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反应信息

点击查看最新优质反应信息

文献信息

  • Syntheses of C-3-Modified Sialylglycosides as Selective Inhibitors of Influenza Hemagglutinin and Neuraminidase
    作者:Xue-Long Sun、Yoshimi Kanie、Chao-Tan Guo、Osamu Kanie、Yasuo Suzuki、Chi-Huey Wong
    DOI:10.1002/1099-0690(200007)2000:14<2643::aid-ejoc2643>3.0.co;2-1
    日期:2000.7
    In an effort to develop new structures as inhibitors of both influenza virus proteins hemagglutinin and neuraminidase, a series of sialic acid derivatives, including those with one of the hydrogen atoms at the C-3 position replaced by either OH or F, were synthesized. The sialic acid derivative with a 3-eq-OH group was first synthesized by means of a new process and used as the key intermediate for
    为了开发作为流感病毒蛋白血凝素和神经氨酸酶抑制剂的新结构,合成了一系列唾液酸生物,包括 C-3 位置的一个原子被 OH 或 F 取代的那些。具有3-eq-OH基团的唾液酸生物首先通过新工艺合成,并作为C-3位进一步衍生化的关键中间体。研究了这些化合物在酸和唾液酸酶催化解条件下的稳定性,结果表明这些化合物比它们的母体对硝基苯基 α-唾液酸苷对这两种条件表现出更强的抵抗力。进一步的抑制试验表明 3-ax-OH 或 F 衍生物 4、5 和 24,4 的 4-差向异构体,是来自产气荚膜梭菌的唾液酸酶的有效特异性抑制剂,以及其他测试的细菌唾液酸酶。然而,3-eq-OH 衍生物 3 几乎没有抑制作用。对人流感唾液酸酶 N1 和 N2 的抑制观察到了相同的趋势。然后将化合物 3-5 和唾液酸转化为二硬脂酰磷脂酰乙醇胺偶联物。在这些脂质体样化合物中,来自 4 和 5 的化合物对血凝素 H3 亚型显
  • 3.BETA.-Hydroxysialic Acid Glycosides. I. Calcium-Binding Ability and Chemical and Enzymatic Stabilities.
    作者:Kaoru OKAMOTO、Taisuke HASEGAWA、Yoshio TOYOMAKI、Masahiro YAMAKAWA、Nobuhisa OKUKADO
    DOI:10.1248/cpb.40.2728
    日期:——
    Methyl alpha- and beta-glycosides of N-acetylneuraminic acid (Neu5Ac) and N-acetyl-3 beta-hydroxyneuraminic acid (Neu5Ac beta 3OH) (1-4) were prepared to evaluate their calcium-binding ability. (Methyl alpha-glucopyranosidonyl) alpha- and beta-, and 4-methylumbelliferyl alpha-glycosides of Neu5Ac and Neu5Ac beta 3OH (5-10) were also synthesized for the comparison of chemical and enzymatic stabilities
    制备了N-乙酰神经氨酸(Neu5Ac)和N-乙酰基-3β-羟基神经酸(Neu5Acβ3OH)(1-4)的甲基α-和β-糖苷,以评估它们的结合能力。还分别合成了Neu5Ac和Neu5Ac beta 3OH(5-10)的(甲基α-葡萄糖喃糖苷基)α-和β-和4-甲基伞形基α-糖苷,分别用于化学和酶稳定性的比较。Neu5Ac和Neu5Ac beta 3OH的甲基β-糖苷3和4,分别显示出强烈的结合能力,而在相应的α-糖苷1和2中未观察到这种能力.Neu5Ac beta 3OH糖苷6,8和10相比,相应的Neu5Ac糖苷5、7和9对酸解和唾液酸酶消化的抵抗力强得多。
  • The synthesis of some mechanistic probes for sialic acid processing enzymes and the labeling of a sialidase from <i>Trypanosoma rangeli</i>
    作者:Andrew G Watts、Stephen G Withers
    DOI:10.1139/v04-125
    日期:2004.11.1

    Sialyl hydrolases, trans-sialidases, and sialyl transferases are biologically important enzymes that are responsible for the incorporation and removal of sialic acid residues, which decorate many cell surface glycocongugates. Two fluorinated sialic acid derivatives have been synthesized as mechanism-based inactivators, to probe the catalytic mechanisms through which sialidases and trans-sialidases operate. Both compounds are known to be covalent inactivators of a trans-sialidase from Trypanosoma cruzi. Here, 3-fluorosialosyl fluoride has been found to covalently label the catalytic nucleophile of a sialidase from T. rangeli, and the residue involved is shown to be Tyr346 within the sequence DENSGYSSVL. This is the first demonstration that sialidases operate through a covalent glycosyl-enzyme intermediate, strongly suggesting a common catalytic mechanism amongst all members of the sialidase superfamily. CMP-3-fluoro sialic acid is a competitive inhibitor of sialyl transferases and was synthesized via a two-step enzymatic process from commercially available N-acetyl mannosamine, 3-fluoropyruvic acid, and cytidine triphosphate in around 84% yield.Key words: sialidase, mechanism, labeling, nucleophile, inhibitor.

    唾液酸解酶、转唾液酶和唾液酸转移酶是生物学上重要的酶,负责将唾液酸残基纳入或去除许多细胞表面糖蛋白中。已合成两种唾液酸生物作为机理基础失活剂,以探究唾液酸解酶和转唾液酶的催化机制。这两种化合物已知是Trypanosoma cruzi的一种转唾液酶的共价失活剂。在这里,发现3-唾液酸化物能共价标记T. rangeli的一种唾液酸解酶的催化亲核物,涉及的残基为DENSGYSSVL序列中的Tyr346。这是首次证明唾液酸解酶通过共价糖基-酶中间体进行催化,强烈暗示唾液酸解酶超家族的所有成员之间存在共同的催化机制。CMP-3-唾液酸是一种唾液酸转移酶的竞争性抑制剂,通过从商业可得的N-乙酰甘露胺、3-丙酮酸胞嘧啶三磷酸的两步酶法过程中合成,产率约为84%。关键词:唾液酸解酶、机制、标记、亲核物、抑制剂
  • WO2020205034A5
    申请人:——
    公开号:WO2020205034A5
    公开(公告)日:2023-02-16
  • Syntheses of (α2–9) and (α2–8) linked neuraminylneuraminic acid derivatives
    作者:Kaoru Okamoto、Tadao Kondo、Toshio Goto
    DOI:10.1016/s0040-4039(00)85176-x
    日期:1986.1
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