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ethyl 3-O-acetyl-4-O-benzyl-2-deoxy-2-phthalimido-1-thio-β-D-glucopyranoside | 263358-62-9

中文名称
——
中文别名
——
英文名称
ethyl 3-O-acetyl-4-O-benzyl-2-deoxy-2-phthalimido-1-thio-β-D-glucopyranoside
英文别名
[(2S,3R,4R,5S,6R)-3-(1,3-dioxoisoindol-2-yl)-2-ethylsulfanyl-6-(hydroxymethyl)-5-phenylmethoxyoxan-4-yl] acetate
ethyl 3-O-acetyl-4-O-benzyl-2-deoxy-2-phthalimido-1-thio-β-D-glucopyranoside化学式
CAS
263358-62-9
化学式
C25H27NO7S
mdl
——
分子量
485.558
InChiKey
RCIMOQTVMGDSDB-CITZFPKPSA-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):
    2.5
  • 重原子数:
    34
  • 可旋转键数:
    9
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    0.4
  • 拓扑面积:
    128
  • 氢给体数:
    1
  • 氢受体数:
    8

反应信息

  • 作为反应物:
    描述:
    2'-O-benzoyl-3,4,6-tri-O-benzyl-β-D-glucopyranosyl fluorideethyl 3-O-acetyl-4-O-benzyl-2-deoxy-2-phthalimido-1-thio-β-D-glucopyranosidecalcium sulfate三氟甲磺酸 作用下, 以 二氯甲烷甲苯 为溶剂, 反应 8.0h, 以81%的产率得到ethyl 3-O-acetyl-6-O-(2-O-benzoyl-3,4,6-tri-O-benzyl-β-D-glucopyranosyl)-4-O-benzyl-2-deoxy-2-phthalimido-1-thio-β-D-glucopyranoside
    参考文献:
    名称:
    Trifluoromethanesulfonic Acid (TfOH)-Catalyzed Stereoselective Glycosylation Using Glycosyl Fluoride
    摘要:
    利用催化量的三氟甲磺酸(TfOH),成功地将 2-O-苯甲酰基-3,4,6-三-O-苄基-β-d-葡糖基氟化物 6 与多种糖基受体进行了立体选择性糖基化。
    DOI:
    10.1246/cl.2000.696
  • 作为产物:
    描述:
    ethyl 3-O-acetyl-4,6-O-benzylidene-2-deoxy-2-phthalimido-1-thio-β-D-glucopyranoside 在 三氯化铝三乙胺-硼烷 作用下, 以 乙醚二氯甲烷 为溶剂, 反应 0.5h, 以98.2%的产率得到ethyl 3-O-acetyl-4-O-benzyl-2-deoxy-2-phthalimido-1-thio-β-D-glucopyranoside
    参考文献:
    名称:
    使用糖基氟化物的质子酸催化立体选择性糖基化
    摘要:
    在 MS 5A 存在下,使用各种质子酸成功地进行了各种糖基受体(如甲基糖苷、硫糖苷或脱臂糖基氟)与苄基保护的武装糖基氟的催化和立体选择性糖基化。在三氟甲磺酸 (TfOH) 或高氯酸 (HClO4) 用于乙醚 (Et2O) 的情况下,主要产物为 α-糖苷,而当四(五氟苯基)硼酸 [HB(C6F5) )4] 用于三氟甲基苯 (BTF)-新戊腈 (tBuCN) = 5:1 的混合溶剂中。这种糖基化的立体选择性受催化剂抗衡阴离子的性质以及溶剂的性质控制。还,
    DOI:
    10.1246/bcsj.75.291
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文献信息

  • Iridium-promoted deoxyglycoside synthesis: stereoselectivity and mechanistic insight
    作者:Kumar Bhaskar Pal、Aoxin Guo、Mrinmoy Das、Jiande Lee、Gábor Báti、Benjamin Rui Peng Yip、Teck-Peng Loh、Xue-Wei Liu
    DOI:10.1039/d0sc06529c
    日期:——
    devised a method for stereoselective O-glycosylation using an Ir(I)-catalyst which enables both hydroalkoxylation and nucleophilic substitution of glycals with varying substituents at the C3 position. In this transformation, 2-deoxy-α-O-glycosides were acquired when glycals equipped with a notoriously poor leaving group at C3 were used; in contrast 2,3-unsaturated-α-O-glycosides were produced from glycals
    在本文中,我们设计了一种使用Ir(I)催化剂进行立体选择性O-糖基化的方法,该方法能够在C3位置使用不同的取代基进行糖的加氢烷氧基化和亲核取代。在该转化中,当使用在C3处带有一个臭名昭著的离去基团的糖时,获得了2-脱氧-α- O-糖苷。相反,由在C3具有良好离去基团的糖基产生2,3-不饱和-α - O-糖苷。机制研究表明,这两个反应进行经由所述引导机构,通过其受体坐标到IR(我在α-面配位Ir)的属(我)-糖基π-复合物,然后以顺式加成方式攻击包含O-糖苷键的糖基。该方案表现出良好的官能团耐受性,并以中等至高收率和优异的立体选择性制备寡糖文库为例。
  • Glycosyl Phosphonium Halide as a Reactive Intermediate in Highly α-Selective Glycosylation
    作者:Yohei Kobashi、Teruaki Mukaiyama
    DOI:10.1246/bcsj.78.910
    日期:2005.5
    Highly α-selective glycosylations of several glycosyl acceptors with 2,3,4,6-tetra-O-benzyl-d-glucopyranosyl bromide (4) proceeded smoothly in the presence of tri(1-pyrrolidino)phosphine oxide in CH2Cl2 at room temperature or in refluxing CHCl3 via glycosyl phosphonium bromide intermediates and the corresponding disaccharides were afforded in good yields with high selectivities. Further, the one-pot glycosylation starting from glycosyl acetate using iodotrimethylsilane and phosphine oxide also proceeded efficiently in CH2Cl2 at room temperature to give the corresponding disaccharides, although this one-pot synthesis of α-glycoside via in situ anomerization procedure is considered difficult because glycosyl halide reacts with trimethylsilyl acetate easily to regenerate glycosyl acetate, a starting glycosyl donor.
    在常温下或在回流的氯仿中,以三(1-吡咯烷基)氧化物为催化剂,2,3,4,6-四-O-苄基-d-葡萄糖喃糖化物(4)与几种糖苷受体的高选择性α-糖苷化反应顺利进行,生成相应的二糖,收率良好且选择性高。此外,使用三甲基硅烷氧化物从糖苷醋酸酯进行的一锅法糖苷化反应也在常温下的二氯甲烷中高效进行,生成相应的二糖。尽管通过原位异头化过程合成α-糖苷的一锅法被认为是困难的,因为糖苷卤化物容易与三甲基硅酸乙酸酯反应,再生出糖苷醋酸酯,作为糖苷供体的起始物。
  • Highly α-Selective Synthesis of Disaccharide Using Glycosyl Bromide by the Promotion of Phosphine Oxide
    作者:Teruaki Mukaiyama、Yohei Kobashi
    DOI:10.1246/cl.2004.10
    日期:2004.1
    A simple and practical method for the glycosylation of several acceptors with 2,3,4,6-tetra-O-benzyl-d-glucopyranosyl bromide was established by the promotion of phosphine oxide. The corresponding disaccharides were obtained in high yields with extremely high α-selectivities under almost neutral condition.
    建立了一种简单实用的方法,通过氧化物促进,使用2,3,4,6-四-O-苄基-d-葡萄糖化物对多种受体进行糖基化。在几乎中性的条件下,得到的相应二糖产率高,α-选择性极高。
  • Catalytic and Stereoselective Glycosylation with Glucosyl Thioformimidates
    作者:Hiroyuki Chiba、Setsuo Funasaka、Teruaki Mukaiyama
    DOI:10.1246/bcsj.76.1629
    日期:2003.8
    efficient glycosyl donor having a p-trifluoromethylbenzylthio-N-p-trifluoromethylphenylformimidate group at an anomeric position is easily prepared by the addition of anomeric hydroxy group of 2,3,4,6-tetra-O-benzyl-α,β-D-glucopyranose to p-trifluoromethylphenyl isothiocyanate, followed by treatment with p-trifluoromethylbenzyl bromide. Catalytic and stereoselective glycosylation of various glycosyl acceptors
    通过添加2,3,4,6-四-O-苄基-α,β-D的异头羟基,可以很容易地制备在异头位置具有对三甲基苄基-Np-三甲基苯基甲亚酸酯基团的新型高效糖基供体-葡萄糖转化为对三甲基苯基异硫氰酸酯,然后用对三甲基苄基处理。通过使用与其氮原子相互作用的各种质子酸和路易斯酸催化剂,各种糖基受体与上述糖基供体的催化和立体选择性糖基化顺利进行。此外,催化和高度 1,2-顺式或 1,在催化量的三氟甲磺酸 (TfOH) 存在下,在 -78 °C 的 tBuOMe 或EtCN,分别。这些糖基化应用于三糖的成功一锅式顺序合成。
  • The Trityl Tetrakis(pentafluorophenyl)borate Catalyzed Stereoselective Glycosylation Using New Glycosyldonor, 3,4,6-Tri-<i>O</i>-benzyl-2-<i>O</i>-<i>p</i>-toluoyl-β-D-glucopyranosyl Phenylcarbonate
    作者:Kazuya Takeuchi、Takayuki Tamura、Teruaki Mukaiyama
    DOI:10.1246/cl.2000.122
    日期:2000.2
    The trityl tetrakis(pentafluorophenyl)borate [TrB(C6F5)4] catalyzed stereoselective synthesis of various disaccharides was successfully carried out by treating a new 2-O-acyl-protected glycosyl donor, 3,4,6-tri-O-benzyl-2-O-p-toluoyl-β-D-glucopyranosyl phenylcarbonate, with several glycosyl acceptors, thioglycosides, affording the corresponding disaccharides in high yields.
    三苯基四氟苯酯 [TrB(C6F5)4] 催化的各种二糖的立体选择性合成成功地通过处理一种新的 2-O-酰基保护的糖苷供体 3,4,6-三-O-苄基-2-O-对甲苯酰基-β-D-葡萄糖噻吩碳酸酯与几种糖苷接受体糖苷进行,实现了高产率的相应二糖的合成。
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