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N-[(2R,3R,4R,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-2-[[2-nitro-5-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyphenyl]methoxy]oxan-3-yl]acetamide | 403511-60-4

中文名称
——
中文别名
——
英文名称
N-[(2R,3R,4R,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-2-[[2-nitro-5-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyphenyl]methoxy]oxan-3-yl]acetamide
英文别名
——
N-[(2R,3R,4R,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-2-[[2-nitro-5-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyphenyl]methoxy]oxan-3-yl]acetamide化学式
CAS
403511-60-4
化学式
C21H30N2O14
mdl
——
分子量
534.474
InChiKey
GKWHFWNHDDXGCH-AZOGQYIJSA-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):
    -2.9
  • 重原子数:
    37
  • 可旋转键数:
    8
  • 环数:
    3.0
  • sp3杂化的碳原子比例:
    0.67
  • 拓扑面积:
    253
  • 氢给体数:
    8
  • 氢受体数:
    14

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:
    N-[(2R,3R,4R,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-2-[[2-nitro-5-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyphenyl]methoxy]oxan-3-yl]acetamide 在 β-galactosidase (EC 3.2.1.23) from Bacillus circulans 作用下, 以 acetate buffer 为溶剂, 生成 N-[(2R,3R,4R,5S,6R)-4,5-Dihydroxy-6-hydroxymethyl-2-(5-hydroxy-2-nitro-benzyloxy)-tetrahydro-pyran-3-yl]-acetamide 、 N-[(2R,3R,4R,5S,6R)-4-Hydroxy-6-hydroxymethyl-2-(5-hydroxy-2-nitro-benzyloxy)-5-((2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-3-yl]-acetamide 、
    参考文献:
    名称:
    Novel substrates for efficient enzymatic transglycosylation byBacillus circulans
    摘要:
    为了高效制备N-乙酰乳糖胺(Galβ(1[Formula: see text]4)GlcNAc,LacNAc),探索了β-半乳糖苷酶介导的转糖基化,使用新型底物枯草杆菌环状芽孢杆菌。为了使转糖基化在熵上有利于水解,供体(乳糖或半乳糖)和受体(N-乙酰葡萄糖胺,GlcNAc)组分连接到单个分子上。为此,筛选了1,2-和1,3-苯二甲醇以及2-羟基-5-硝基-和5-羟基-2-硝基苄醇作为连接剂,并在几种条件下研究了酶促转糖基化。在2-羟基-5-硝基苄连接底物40的情况下,观察到了分子内转糖基化的迹象,并以26%的分离产率获得了期望产物(58)。在CMP唾液酸和α-(2[Formula: see text]6)-唾液酰基转移酶存在的情况下,同一反应在一个锅中以39%的分离产率得到了唾液酰基LacNAc 87。此外,简要考察了受体组分的C-2取代基的影响,使用含有NHAlloc(72)、NHTroc(73)和N3(74)基团的底物。尽管在这些情况下分子内转糖基化的发生并不明确,但获得了81–83的二糖以合理的产率。关键词:半乳糖苷酶,分子内转糖基化,N-乙酰乳糖胺,唾液酰基转移酶。
    DOI:
    10.1139/v02-156
  • 作为产物:
    参考文献:
    名称:
    Novel substrates for efficient enzymatic transglycosylation byBacillus circulans
    摘要:
    为了高效制备N-乙酰乳糖胺(Galβ(1[Formula: see text]4)GlcNAc,LacNAc),探索了β-半乳糖苷酶介导的转糖基化,使用新型底物枯草杆菌环状芽孢杆菌。为了使转糖基化在熵上有利于水解,供体(乳糖或半乳糖)和受体(N-乙酰葡萄糖胺,GlcNAc)组分连接到单个分子上。为此,筛选了1,2-和1,3-苯二甲醇以及2-羟基-5-硝基-和5-羟基-2-硝基苄醇作为连接剂,并在几种条件下研究了酶促转糖基化。在2-羟基-5-硝基苄连接底物40的情况下,观察到了分子内转糖基化的迹象,并以26%的分离产率获得了期望产物(58)。在CMP唾液酸和α-(2[Formula: see text]6)-唾液酰基转移酶存在的情况下,同一反应在一个锅中以39%的分离产率得到了唾液酰基LacNAc 87。此外,简要考察了受体组分的C-2取代基的影响,使用含有NHAlloc(72)、NHTroc(73)和N3(74)基团的底物。尽管在这些情况下分子内转糖基化的发生并不明确,但获得了81–83的二糖以合理的产率。关键词:半乳糖苷酶,分子内转糖基化,N-乙酰乳糖胺,唾液酰基转移酶。
    DOI:
    10.1139/v02-156
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文献信息

  • β-Galactosidase-catalyzed intramolecular transglycosylation
    作者:Shiro Komba、Yukishige Ito
    DOI:10.1016/s0040-4039(01)01826-3
    日期:2001.11
    A novel transglycosylation strategy for efficient preparation of N-acetyllactosamine (Gal beta1 --> 4GlcNAc, LacNAc) and sialyl LacNAc was developed using beta -galactosidase from Bacillus circulans. In order to minimize the competing hydrolysis by forcing the enzymatic transglycosylation to proceed in an intramolecular manner, a novel substrate 9 carrying the donor (galactose) and the acceptor (N-acetylglucosamine) components linked via a 2-hydroxy-5-nitro-benzylalcohol derived tether was prepared. Treatment with beta -galactosidase from B. circulans afforded the transglycosylation product 11 in 26% yield. Furthermore, addition of sialyltransferase and CMP-sialic acid to this system gave sialyl LacNAc 18 in 39% yield. (C) 2001 Elsevier Science Ltd. All rights reserved.
  • Novel substrates for efficient enzymatic transglycosylation by<i>Bacillus circulans</i>
    作者:Shiro Komba、Yukishige Ito
    DOI:10.1139/v02-156
    日期:2002.8.1

    To develop transglycosylation for efficient preparation of N-acetyllactosamine (Galβ(1[Formula: see text]4)GlcNAc, LacNAc), β-galactosidase mediated transglycosylation using novel substrates Bacillus Circulans was explored. To make transglycosylation entropically favorable over hydrolysis, donor (lactose or galactose) and acceptor (N-acetyl glucosamine, GlcNAc) components were connected to a single molecule. For that purpose, 1,2- and 1,3-benzene dimethanol and 2-hydroxy-5-nitro- and 5-hydroxy-2-nitro-benzyl alcohol were screened as linkers and enzymatic transglycosylation was examined under several conditions. In the case of 2-hydroxy-5-nitro-benzyl connected substrate 40, an indication of the occurrence of intramolecular transglycosylation was observed, and the desired product (58) was obtained in 26% isolated yield. The same reaction in the presence of CMP sialic acid and α-(2[Formula: see text]6)-sialyltransferase gave sialyl LacNAc 87 in one pot in 39% isolated yield. Additionally, the effect of the C-2 substituent of the acceptor component was briefly examined using substrates containing NHAlloc (72), NHTroc (73), and N3(74) groups. Although the occurrence of intramolecular transglycosylation was not clear in these cases, disaccharides 81–83 were obtained in reasonable yields.Key words: galactosidase, intramolecular transglycosylation, N-acetyllactosamine, sialyltransferase.

    为了高效制备N-乙酰乳糖胺(Galβ(1[Formula: see text]4)GlcNAc,LacNAc),探索了β-半乳糖苷酶介导的转糖基化,使用新型底物枯草杆菌环状芽孢杆菌。为了使转糖基化在熵上有利于水解,供体(乳糖或半乳糖)和受体(N-乙酰葡萄糖胺,GlcNAc)组分连接到单个分子上。为此,筛选了1,2-和1,3-苯二甲醇以及2-羟基-5-硝基-和5-羟基-2-硝基苄醇作为连接剂,并在几种条件下研究了酶促转糖基化。在2-羟基-5-硝基苄连接底物40的情况下,观察到了分子内转糖基化的迹象,并以26%的分离产率获得了期望产物(58)。在CMP唾液酸和α-(2[Formula: see text]6)-唾液酰基转移酶存在的情况下,同一反应在一个锅中以39%的分离产率得到了唾液酰基LacNAc 87。此外,简要考察了受体组分的C-2取代基的影响,使用含有NHAlloc(72)、NHTroc(73)和N3(74)基团的底物。尽管在这些情况下分子内转糖基化的发生并不明确,但获得了81–83的二糖以合理的产率。关键词:半乳糖苷酶,分子内转糖基化,N-乙酰乳糖胺,唾液酰基转移酶。
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