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2-pyridyl 2,3,4,6-tetra-O-benzyl-1-thio-β-D-galactopyranoside | 126330-73-2

中文名称
——
中文别名
——
英文名称
2-pyridyl 2,3,4,6-tetra-O-benzyl-1-thio-β-D-galactopyranoside
英文别名
2-[(2S,3R,4S,5S,6R)-3,4,5-tris(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]sulfanylpyridine
2-pyridyl 2,3,4,6-tetra-O-benzyl-1-thio-β-D-galactopyranoside化学式
CAS
126330-73-2
化学式
C39H39NO5S
mdl
——
分子量
633.808
InChiKey
VBCQRYYNUMDJCF-DEPSEAIFSA-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:
    751.3±60.0 °C(Predicted)
  • 密度:
    1.24±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    7.1
  • 重原子数:
    46
  • 可旋转键数:
    15
  • 环数:
    6.0
  • sp3杂化的碳原子比例:
    0.26
  • 拓扑面积:
    84.3
  • 氢给体数:
    0
  • 氢受体数:
    7

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-pyridyl 2,3,4,6-tetra-O-benzyl-1-thio-β-D-galactopyranoside吡啶4-二甲氨基吡啶 、 4 A molecular sieve 、 四丁基氟化铵四丁基碘化铵 、 sodium hydride 、 对甲苯磺酸1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 sodium iodide 、 碘甲烷 作用下, 以 四氢呋喃二氯甲烷丙酮 为溶剂, 反应 148.17h, 生成 methyl 2,4-di-O-benzyl-6-deoxy-3-O-(2',3',4',6'-tetra-O-benzyl-α-D-galactopyranosyl)-α-D-xylohex-5-enopyranoside
    参考文献:
    名称:
    通过半缩醛庚醇内酯醇的分子内重排,立体选择性合成5-脱氧六呋喃呋喃二糖醛酸的稀有(D和L)单糖和二糖
    摘要:
    描述了D-葡萄糖,2-O-,3-O-和4-O-连接的二糖6,7和35分别转化为相应的环己酮醇36和36。描述了分别通过Baeyer-Villiger氧化将这些环己酮醇立体定向转化为相应的半缩醛庚醇内酯醇。描述了半缩醛庚醇内酯醇的容易的,立体定向的酸催化的重排成相应的5-脱氧呋喃呋喃糖基杜糖醛酸。相反,由4-O-连接的二糖35获得的庚内酯醇36在酸催化的重排过程中经历糖苷间的裂解,导致单糖38和39的形成。提出了糖苷间切割的可能机理途径。
    DOI:
    10.1016/0040-4020(94)01047-4
  • 作为产物:
    描述:
    2-(2',3',4',6'-tetra-O-acetyl-β-D-galactopyranosylmercapto)pyridine 在 甲醇sodium methylate 、 sodium hydride 作用下, 反应 3.5h, 生成 2-pyridyl 2,3,4,6-tetra-O-benzyl-1-thio-β-D-galactopyranoside
    参考文献:
    名称:
    立体选择性合成α-连接的糖类,方法是将每个O-苄基化的2-吡啶基1-硫基己吡喃糖苷用作糖基供体,并使用甲基碘作为活化剂
    摘要:
    描述了一种新的,实用的,立体选择性糖苷化方法,其中每个D-葡萄糖-(1),D-半乳糖-(2),D-甘露聚糖-(- )的O-苄基化2-吡啶基1-硫代-α/β-己吡喃糖基3)和L-鼠李糖(4)构型已通过甲基碘活化与各种糖醇(6,8-11)有效偶联,获得了α-连接的二糖(7,12-19)。供体1与二糖受体20的偶联,以及二糖供体5与8的偶联,以获得α-连接的三糖21和22也进行了描述。还讨论了α选择性的可能机理。
    DOI:
    10.1016/s0040-4020(01)86571-6
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文献信息

  • Discriminative Glycosylation of 3-(Aryloxy)propane-1,2-diols by Choice of a Glycosyl Donor
    作者:Hari Babu Mereyala、Sreeman Kumar Mamidyala、Krishna Prasad Chigurupati、Sastri R. Srinivasa
    DOI:10.1055/s-2003-42437
    日期:——
    Regioselective glycosylation of rac-guaifenesin (1A) with various glycosyl donors viz., β-d -glucosepentaacetate (2), pyridyl 2,3,4,6-O-tetra-O-benzyl-1-thio-β-d-galactopyranoside (9), 1-O-acetyl-2,3,5-tri-O-benzoyl-α/β-d-ribo- (13) and xylofuranoside (17) is reported. Glycosyl donors 2, 13 and 17 bearing ester protecting groups is reported to exhibit high regioselectivity to form the corresponding diastereomeric mixture of 1-O-glycosylated guaifenesin derivatives 3A, 14A and 18A, respectively; formation of diglycosylated derivatives 5A, 15A and 19A is not observed. While no such selectivity is observed when the donor 9 bearing ether protecting groups is used in the coupling reaction with 1A, resulting in the formation of digalactosylated derivatives 10A. That the regioselectivity is not dependent upon substituents present on the aromatic ring is shown by coupling 1B with 2 to isolate 1-O-glycosylated derivative 3B; formation of diglycosylated derivative 5B was not observed. Applicability of this finding is shown by preparation of enantiopure guaifenesin [(R)-1 (98% ee) and (S)-1 (98% ee)] by separation of their corresponding diastereomers (R)-3 and (S)- 3, respectively.
    本文报道了消旋的愈创甘油醚(1A)与各种糖供体,即β-D-葡萄糖五乙酸酯(2)、吡啶基2,3,4,6-O-四苄基-1-硫代-β-D-半乳糖吡喃糖苷(9)、1-O-乙酰基-2,3,5-三-O-苯甲酰基-α/β-D-核糖-(13)和木糖呋喃糖苷(17)的区域选择性糖基化反应。具有酯保护基的糖供体2、13和17被报道表现出高度的区域选择性,分别形成相应的1-O-糖基化愈创甘油醚衍生物3A、14A和18A的非对映异构体混合物;未观察到形成二糖基化衍生物5A、15A和19A。然而,当使用具有醚保护基的供体9进行与1A的偶联反应时,未观察到这种选择性,导致形成了二半乳糖基化衍生物10A。通过将1B与2偶联并分离出1-O-糖基化衍生物3B,表明区域选择性不依赖于芳环上的取代基;未观察到形成二糖基化衍生物5B。这一发现的适用性通过分离其相应的非对映异构体(R)-3和(S)-3,分别制备了具有高对映体纯度的愈创甘油醚[(R)-1(98% ee)和(S)-1(98% ee)]。
  • Design of Glycosyltransferase Inhibitors: Pyridine as a Pyrophosphate Surrogate
    作者:Shuai Wang、Jose A. Cuesta-Seijo、Dominique Lafont、Monica M. Palcic、Sébastien Vidal
    DOI:10.1002/chem.201301871
    日期:2013.11.4
    series of ten glycosyltransferase inhibitors has been designed and synthesized by using pyridine as a pyrophosphate surrogate. The series was prepared by conjugation of carbohydrate, pyridine, and nucleoside building blocks by using a combination of glycosylation, the Staudinger–Vilarrasa amide‐bond formation, and azide–alkyne click chemistry. The compounds were evaluated as inhibitors of five metal‐dependent
    通过使用吡啶作为焦磷酸盐替代物,已经设计并合成了一系列十种糖基转移酶抑制剂。该系列是通过结合糖基化,Staudinger-Vilarrasa酰胺键形成和叠氮化物-炔烃点击化学反应,结合碳水化合物,吡啶和核苷结构单元而制备的。该化合物被评估为五种金属依赖性半乳糖基转移酶的抑制剂。三种酶在一种酶的活性位点复合的抑制剂的晶体学分析证实,吡啶部分螯合了Mn 2+离子,导致其原始位置略微移位(2Å)。与天然尿苷二磷酸(UDP)-Gal底物相比,碳水化合物的头基占据的位置不同,与酶的相互作用很小。
  • Glycosylation of ‘basic’ alcohols: methyl 6-(hydroxymethyl)picolinate as a case study
    作者:Shuai Wang、Dominique Lafont、Jani Rahkila、Benjamin Picod、Reko Leino、Sébastien Vidal
    DOI:10.1016/j.carres.2013.02.009
    日期:2013.5
    Glycosylation is promoted by acid promoters rendering the reactions with basic acceptors challenging. This report presents an in depth study involving methyl 6-(hydroxymethyl)picolinate as the model acceptor and 22 glycosyl donors to afford the desired glycosides in good yields ranging from 46% to 85%. Several parameters were evaluated, including the protecting groups of the glycosyl donor, the leaving
    酸促进剂可促进糖基化,从而使与碱性受体的反应具有挑战性。该报告提出了一项深入研究,涉及6-(羟甲基)吡啶甲酸甲酯作为模型受体和22个糖基供体,以46%至85%的高收率提供所需的糖苷。评价了几个参数,包括糖基供体的保护基,异头中心的离去基团和启动子。与基于吡啶的受体(46%)相比,提供高产率的糖苷(79%)的基于苯的受体对吡啶环的影响是明显的。本工作提供了对含吡啶的糖苷的一般和可靠的途径。
  • Syntheses of an α-d-Gal-(1→6)-β-d-Gal diglyceride, as lipase substrate
    作者:Dominique Lafont、Frédéric Carrière、Francine Ferrato、Paul Boullanger
    DOI:10.1016/j.carres.2006.01.021
    日期:2006.5
    Two different routes were explored to afford 3-O-(6-0-alpha-D-galactopyranosyl-beta-D-galactopyranosyl)-1,2-di-O-dodecanoyl-sn-glycerol. In the first one, the key step was the glycosylation of the 3-O-(2,3,4-tri-O-benzyl-beta-D-galactopyranosyl)- 1, 2-O-isopropylidene-sn-glycerol acceptor with 2-pyridyl 2,3,4,6-tetra-O-benzyl-1-thio-beta-D-galactopyranoside as the donor. In the second one, the key step was the coupling of 2,3,4-tri-O-acetyl-6-O-(2,3,4,6-tetra-O-benzyl-alpha-D-galactopyranosyl)-D-galactopyranosyl trichloroacetimidate donor with 1,2-O-isopropylidene-sn-glycerol. Even though the number of steps was the same in both pathways, the first one afforded a better overall yield (12.4%) than the second one (6.5%). This eight-step synthesis allowed the preparation of the expected glycolipid, which was used as substrate for recombinant GPLRP2 galactolipase using the monomolecular film technique. (c) 2006 Elsevier Ltd. All rights reserved.
  • A practical synthesis of 2-azidoethyl α-glycosides: useful spacer-arm glycosides for the synthesis of neoglycoconjugates
    作者:Gangavaram V.M. Sharma、Palakodety Radha Krishna
    DOI:10.1016/0008-6215(93)87043-r
    日期:1993.5
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