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正辛基-Β-D-乳糖苷 | 74513-17-0

中文名称
正辛基-Β-D-乳糖苷
中文别名
——
英文名称
octyl β-D-galactopyranosyl-(1->4)-β-D-glucopyranoside
英文别名
Octyl beta-D-Lactoside;(2S,3R,4S,5R,6R)-2-[(2R,3S,4R,5R,6R)-4,5-dihydroxy-2-(hydroxymethyl)-6-octoxyoxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol
正辛基-Β-D-乳糖苷化学式
CAS
74513-17-0
化学式
C20H38O11
mdl
——
分子量
454.515
InChiKey
MASIZQYHVMQQKI-YAIANMIZSA-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

  • 熔点:
    185-187°C
  • 沸点:
    676.4±55.0 °C(Predicted)
  • 密度:
    1.37±0.1 g/cm3(Predicted)
  • 溶解度:
    温甲醇

计算性质

  • 辛醇/水分配系数(LogP):
    -0.8
  • 重原子数:
    31
  • 可旋转键数:
    12
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    1.0
  • 拓扑面积:
    179
  • 氢给体数:
    7
  • 氢受体数:
    11

安全信息

  • 储存条件:
    hygroscopic, stored at -20°C in a freezer under an inert atmosphere

SDS

SDS:44bda9f788d553d1249127a4a1fe7faf
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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

反应信息

  • 作为反应物:
    参考文献:
    名称:
    Observations on chemical and enzymatic approaches to α-2,3-sialylated octyl β-lactoside
    摘要:
    A comparison of chemical and chemo-enzymatic syntheses of alpha-2,3-sialylated octyl lactoside is reported. The chemical approach, starting from lactose and sialic acid, required 14 steps and proceeded in 5% overall yield; poor a-selectivity in the sialylation step necessitated a difficult and low yielding separation of anomers. A chemoenzymatic approach, employing recombinant Trypanosoma cruzi trans-sialidase to effect the key sialylation reaction, required 10 steps and gave a similar overall yield. Whereas the chemo-enzymatic synthesis required only three chromatographic purification steps overall, the chemical synthesis required at least nine. (C) 2002 Elsevier Science Ltd. All rights reserved.
    DOI:
    10.1016/s0040-4020(02)00265-x
  • 作为产物:
    描述:
    2,2',3,3',4',6,6'-七-O-乙酰基-alpha-D-乳糖基溴化物 在 4 A molecular sieve 、 silver perchlorate 、 sodium 、 silver carbonate 作用下, 以 甲醇 为溶剂, 反应 25.0h, 生成 正辛基-Β-D-乳糖苷
    参考文献:
    名称:
    Observations on chemical and enzymatic approaches to α-2,3-sialylated octyl β-lactoside
    摘要:
    A comparison of chemical and chemo-enzymatic syntheses of alpha-2,3-sialylated octyl lactoside is reported. The chemical approach, starting from lactose and sialic acid, required 14 steps and proceeded in 5% overall yield; poor a-selectivity in the sialylation step necessitated a difficult and low yielding separation of anomers. A chemoenzymatic approach, employing recombinant Trypanosoma cruzi trans-sialidase to effect the key sialylation reaction, required 10 steps and gave a similar overall yield. Whereas the chemo-enzymatic synthesis required only three chromatographic purification steps overall, the chemical synthesis required at least nine. (C) 2002 Elsevier Science Ltd. All rights reserved.
    DOI:
    10.1016/s0040-4020(02)00265-x
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文献信息

  • Optically Active Cyclophane Receptors for Mono- and Disaccharides: The Role of Bidentate Ionic Hydrogen Bonding in Carbohydrate Recognition
    作者:Anne Sophie Droz、Ulf Neidlein、Sally Anderson、Paul Seiler、François Diederich
    DOI:10.1002/1522-2675(20010815)84:8<2243::aid-hlca2243>3.0.co;2-g
    日期:2001.8.15
    feature very different molecular shapes (Fig. 10). In 1H-NMR binding titrations with mono- and disaccharides (Fig. 13), concentration ranges were chosen to favor 1 : 1 host−guest binding. This stoichiometry was experimentally established by the curve-fitting analysis of the titration data and by Job plots. The titration data demonstrate conclusively that the strength of carbohydrate recognition is enhanced
    描述了一种新的旋光环烷受体家族,用于在竞争性质子溶剂混合物中络合单糖和二糖。大环化合物 (−)-(R,R,R,R)-1 – 4 具有由四个 1,1'-binaphthalene-2,2'-磷酸二酯部分通过桥接在 3,3'-位置形成的预组织结合腔炔属或苯炔属间隔物。四个磷酸二酯基团向结合腔汇聚并提供有效的双齿离子 H 键受体位点(图 2)。1,1'-联萘部分的 7,7'-位上的苄氧基确保纳米尺寸受体的溶解性并防止不希望的聚集。四种环烷的大环框架的构建利用了 Sonogashira 协议的 Pd0 催化的芳基 - 乙炔交叉偶联,和氧化炔属均偶联方法(方案 2 和 8 – 10)。还制备了几种具有一个 1,1'-联萘-2,2'-磷酸二酯部分的裂隙型受体(方案 1、6 和 7)。在目标化合物的合成过程中遇到的一个不希望的副反应是通过 5-endo-dig 环化从 3-ethynylnaphthalene-2-ol
  • Human Neuraminidase Isoenzymes Show Variable Activities for 9-<i>O</i>-Acetyl-sialoside Substrates
    作者:Carmanah D. Hunter、Neha Khanna、Michele R. Richards、Reza Rezaei Darestani、Chunxia Zou、John S. Klassen、Christopher W. Cairo
    DOI:10.1021/acschembio.7b00952
    日期:2018.4.20
    Recognition of terminal sialic acids is central to many cellular processes, and structural modification of sialic acid can disrupt these interactions. A prominent, naturally occurring, modification of sialic acid is 9-O-acetylation (9-O-Ac). Study of this modification through generation and analysis of 9-O-Ac sialosides is challenging because of the lability of the acetate group. Fundamental questions
    末端唾液酸的识别是许多细胞过程的核心,唾液酸的结构修饰可以破坏这些相互作用。唾液酸的一种明显的,天然存在的修饰是9- O-乙酰化(9- O- Ac)。由于乙酸酯基团的不稳定性,通过生成和分析9- O- Ac唾液酸苷进行这种修饰的研究具有挑战性。关于9- O- Ac唾液酸的作用的基本问题仍未得到解答,包括其对人神经氨酸酶(hNEU)的识别和水解可能产生何种作用。调查9- O-乙酰化唾液酸(Neu5,9Ac 2),我们合成了乙酰化的荧光hNEU底物2'-(4-甲基伞形酮)-9 - O-乙酰基-α - d - N-乙酰基神经氨酸。此外,我们生成了一组包含改性唾液酸的辛基唾液酸乳糖苷,包括键合,9- O-乙酰化和C-5基团(Neu5Gc)的变化。使用荧光光谱法和电喷雾电离质谱法测定hNEU裂解底物的相对速率。我们报道9- O-乙酰化对hNEU的唾液酸水解具有显着的差异影响,具有一般底物耐受性,遵循Neu5Ac>
  • Simple preparations of alkyl and cycloalkyl α-glycosides of maltose, cellobiose, and lactose
    作者:Shinkiti Koto、Motoko Hirooka、Takako Tashiro、Motokazu Sakashita、Masaharu Hatachi、Takayuki Kono、Miho Shimizu、Nahoko Yoshida、Sayaka Kurasawa、Natsuko Sakuma、Sunao Sawazaki、Akihiro Takeuchi、Naomi Shoya、Emi Nakamura
    DOI:10.1016/j.carres.2004.07.016
    日期:2004.10
    allyl, 4-pentenyl, and benzyl α-glycosides of maltose, cellobiose, and lactose were prepared (17–77% yield; α/β = 70/30–96/4) via a direct reaction of the free disaccharides with a binary AcBr–AcOH mixture, followed by glycosidation with alcohol using FeCl3 in MeNO2 or CH2Cl2, Zemplen deacetylation, and resolution of the anomeric mixture of glycosides by chromatography. Using MeCN as solvent for the
    摘要麦芽糖,纤维二糖和乳糖的烷基,环烷基,烯丙基,4-戊烯基和苄基α-糖苷的制备是(17-77%的收率;α/β= 70 / 30-96 / 4)。游离的二糖与二元AcBr-AcOH混合物混合,然后使用FeNO3在MeNO2或CH2Cl2中与酒精进行糖基化,Zemplen脱乙酰化,并通过色谱分离糖苷的异头混合物。使用MeCN作为糖苷化步骤的溶剂,还制备了相应的β-生物苷(16-61%产率;α/β= 25 / 75-5 / 95)。
  • Chemoenzymatic Synthesis of α-(1→3)-Gal(NAc)-Terminating Glycosides of Complex Tertiary Sugar Alcohols
    作者:Xiangping Qian、Keiko Sujino、Albin Otter、Monica M. Palcic、Ole Hindsgaul
    DOI:10.1021/ja993004g
    日期:1999.12.1
    analogues in which the ring carbon bearing the OH groups undergoing enzymatic glycosylation in the natural reactions had their C−H bond replaced with a C-methyl or C-propyl bond. The tertiary C-methyl alcohols proved to be kinetically competent substrates which permitted the enzymatic preparation of the expected product trisaccharides in near quantitative yields.
    糖基转移酶在寡糖类似物合成中的范围已扩大到包括使用“保留”酶作用于复杂的三级 C 支链二糖受体。研究的酶是α1,3-半乳糖基转移酶(α1,3-GalT,EC 2.4.1.151),它使用Galβ1→4Glcβ-OR作为受体,以及重组血型A [α1,3-GalNAc转移酶(GTA),EC 2.4.1.40] 和 B [α1,3-Gal 转移酶 (GTB), EC 2.4.1.37] 糖基转移酶,在其生物合成反应中使用 Fucα1→2Galβ-OR 作为受体。化学合成产生了受体类似物,其中在自然反应中进行酶促糖基化的带有 OH 基团的环碳的 C-H 键被 C-甲基或 C-丙基键取代。
  • WO2008/124729
    申请人:——
    公开号:——
    公开(公告)日:——
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