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p-tolyl 3,5-O-(tetra-isopropylsiloxane-1,3-diyl)-1-thio-α-D-arabinofuranoside | 204918-57-0

中文名称
——
中文别名
——
英文名称
p-tolyl 3,5-O-(tetra-isopropylsiloxane-1,3-diyl)-1-thio-α-D-arabinofuranoside
英文别名
(6aR,8R,9S,9aS)-8-(4-methylphenyl)sulfanyl-2,2,4,4-tetra(propan-2-yl)-6a,8,9,9a-tetrahydro-6H-furo[3,2-f][1,3,5,2,4]trioxadisilocin-9-ol
p-tolyl 3,5-O-(tetra-isopropylsiloxane-1,3-diyl)-1-thio-α-D-arabinofuranoside化学式
CAS
204918-57-0
化学式
C24H42O5SSi2
mdl
——
分子量
498.831
InChiKey
BEIABZSLMOJPNZ-UEQSERJNSA-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:
    509.5±50.0 °C(Predicted)
  • 密度:
    1.09±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    6.13
  • 重原子数:
    32
  • 可旋转键数:
    6
  • 环数:
    3.0
  • sp3杂化的碳原子比例:
    0.75
  • 拓扑面积:
    82.4
  • 氢给体数:
    1
  • 氢受体数:
    6

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:
    Synthesis of arabinofuranosides via low-temperature activation of thioglycosides
    摘要:
    The synthesis of oligosaccharides containing arabinofuranose residues is reported. Coupling of thioglycoside donors 4, 6, or 7 and with acceptors 8-17 using N-iodosuccinimide and silver triflate activation provided glycosides with varying degrees of stereocontrol. (C) 2001 Elsevier Science Ltd. All rights reserved.
    DOI:
    10.1016/s0040-4039(01)01133-9
  • 作为产物:
    描述:
    1,2,3,5-四-O-乙酰基-Alpha-D-阿拉伯呋喃糖 在 吡啶三氟化硼乙醚sodium methylate 作用下, 以 甲醇二氯甲烷 为溶剂, 反应 2.0h, 生成 p-tolyl 3,5-O-(tetra-isopropylsiloxane-1,3-diyl)-1-thio-α-D-arabinofuranoside
    参考文献:
    名称:
    对使用3,5- Ø亚苄基和3,5- Ö - (二-叔-butylsilylene)-2- Ø -benzylarabinothiofuranosides及其亚砜作为糖基供体的β阿拉伯呋喃糖苷的合成:激活方法的重要性
    摘要:
    A 2- ø -苄基-3,5- ø -亚苄基- α- d -thioarabinofuranoside通过在碱性条件下α,α-二溴甲苯相应二醇的反应来获得。在-55°C下用1-苯亚磺酰基哌啶或二苯亚砜和三氟甲磺酸酐在二氯甲烷中活化后,与糖基受体的反应可提供极少或没有选择性的异头混合物。在1-苯亚磺酰基哌啶或二苯基亚砜条件下,类似的2 - O-苄基-3,5 - O-(二叔丁基亚甲硅烷基)-α- d-硫代阿拉伯呋喃糖苷也没有显示出明显的选择性。与N-碘代琥珀酰亚胺和三氟甲磺酸银表明,甲硅烷基乙缩醛具有中等至高的β-选择性,而与起始硫代糖苷的构型无关。用三氟甲磺酸酐活化后的2 - O-苄基-3,5 - O-(二叔丁基亚甲硅烷基)-α-阿拉伯呋喃糖基亚砜供体也获得了高β-选择性。N获得的高β选择性-碘代琥珀酰亚胺/三氟甲磺酸银和亚砜的方法与常见的中间体一致,最有可能是氧杂碳鎓离子。用1-苯亚磺酰基
    DOI:
    10.1021/jo061440x
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文献信息

  • 一种β-D-阿拉伯呋喃糖苷键的立体选择性合成方法
    申请人:中山大学
    公开号:CN113861246A
    公开(公告)日:2021-12-31
    本发明属于天然寡糖链合成技术领域,具体涉及一种β‑D‑阿拉伯呋喃糖苷键的立体选择性合成方法,本发明以2‑O‑苄基‑3,5‑O‑对二甲苯‑D‑阿拉伯呋喃糖基三氯乙酰亚胺酯为糖基供体合成得到β‑D‑阿拉伯呋喃糖苷类化合物。该方法可以有效高选择性控制糖苷化反应的立体选择性,具有底物适用范围广、操作方便、原料易得,糖苷化反应副反应少,目标产率高等优点。糖基供体制备过程的反应条件简单易控、操作方便、反应原料廉价易得,各阶段的产物产率均较高,且本发明所用的糖基供体的各个保护基之间在酸性或碱性条件下均能实现选择性脱除,具有很高的灵活性及普适性,对合成天然糖苷及其衍生物具有非常重要的意义。
  • Silver-assisted gold-catalyzed solid phase synthesis of linear and branched oligosaccharides
    作者:Yogesh Sutar、Madhuri Vangala、Srinivas Hotha
    DOI:10.1039/d1cc06270k
    日期:——
    Unlike solid phase synthesis of peptides, synthesis of oligosaccharides by solid phase methods is lagging behind owing to inherent challenges faced while executing glycosidations. In this communication, silver-assisted gold-catalyzed glycosidations are found to be excellent for solid phase oligosaccharide synthesis. Glycosidations under catalytic conditions, one time coupling with four equivalents
    与肽的固相合成不同,由于在进行糖苷化时面临固有的挑战,通过固相方法合成寡糖处于滞后状态。在这篇通讯中,发现银辅助金催化的糖苷化对于固相寡糖合成非常有效。催化条件下的糖苷化、与四当量供体的一次偶联、25°C 下不到 30 分钟的反应以及甲硅烷基和苯甲酸酯保护基团的树脂脱保护是其显着特征。光裂解聚糖具有受保护的氨基官能团,可用于生物共轭。该方法的多功能性是通过合成线性和支化呋喃五阿拉伯糖苷而建立的。
  • Regioselectivity in Alkylation Reactions of 1,2‐<i>O</i>‐Stannylene Acetals of <scp>d</scp>‐Arabinofuranose
    作者:Omar S. Darwish、Christopher S. Callam、Christopher M. Hadad、Todd L. Lowary
    DOI:10.1081/car-120026604
    日期:2003.12.31
    studied. With reactive alkyl halides (benzyl bromide, allyl bromide, and p‐methoxybenzyl chloride), the method provides a mixture of β‐arabinofuranosides and 2‐O‐alkylated lactols in ratios of 4:1 to 1:1.5. However, with carbohydrate‐derived electrophiles, no alkylated products are produced. It appears, therefore, that the method is limited to the preparation of β‐arabinofuranosides of simple alcohols
    已经研究了通过1,2- O-亚锡乙缩醛中间体的烷基化合成β-阿拉伯呋喃糖苷的方法。使用反应性烷基卤化物(苄基溴,烯丙基溴和对-甲氧基苄基氯),该方法可提供β-阿拉伯呋喃糖苷和2- O的混合物烷基化的乳糖醇比例为4:1至1:1.5。但是,对于碳水化合物衍生的亲电试剂,不会产生烷基化产物。因此,该方法似乎仅限于简单醇的β-阿拉伯呋喃糖苷的制备。通过使用计算化学,我们已经探索了这些亚锡缩醛之一的构象性质,并提出这些物质在溶液中以一种以上的构象存在,并且这导致这些反应中相对较差的区域选择性。
  • Arabinofuranosyl Oligosaccharides from Mycobacteria:  Synthesis and Effect of Glycosylation on Ring Conformation and Hydroxymethyl Group Rotamer Populations
    作者:Francis W. D'Souza、Joseph D. Ayers、Patrick R. McCarren、Todd L. Lowary
    DOI:10.1021/ja993543l
    日期:2000.2.1
    A series of alpha-D-arabinofurnnosyl oligosaccharides (2-8) that an fragments of the arabinan portions of two polysaccharides present in the cell wall of Mycobacterium tuberculosis have been synthesized. Preparation of the oligosaccharides involved the sequential addition of arabinofuranosyl residues from thioglycoside donors to methyl glycoside accepters. High-resolution NMR studies on the final products provided all (3)J(H,H) values, which were in turn used in PSEUROT 6.2 calculations to determine both the identity and equilibrium populations of preferred conformers for each furanose ring in these glycans. Comparison of the ring conformers present in 2-8 with these available in the parent monosaccharide, methyl alpha-D-arabinofuranose (16), allowed the determination of the effect of glycosylation upon ring conformation. At equilibrium, 16 exists as an approximately equimolar mixture of T-0(4) (North, N) and T-2(3) (South, S) conformers. These studies showed that glycosylation of 16 at OH5 resulted in no significant change in conformer identity or population relative to 16. However, glycosylation of OH3 resulted in a change in the identity of the N species (to E-O) and a significant favoring of this conformer at equilibrium. These trends were seen in all of the oligosaccharides. The populations of the three possible staggered rotamers (gg, gt, tg) about the C4-C5 bond were essentially the same for all residues in 2-8, and thus this equilibrium does not appear to be sensitive to glycosylation.
  • Concise synthesis of an arabinofuranose hexasaccharide present in the cell wall of Mycobacterium tuberculosis
    作者:Karnakar C. Reddy、Narra Padmaja、Vibha Pathak、Ashish K. Pathak
    DOI:10.1016/j.tetlet.2012.03.016
    日期:2012.5
    Mycobacterium cell wall consists of three major polysaccharide portions and arabinofuranose (Araf) is present in two of the major portions, arabinogalactan (AG) and lipoarabinomannan (LAM). A peculiar Araf hexasaccharide possessing two beta-linked Araf units are present in both AG and LAM polysaccharides. Herein, we report an efficient and concise synthesis of this Araf hexasaccharide using single starting 3,5-TIPDS protected Araf thioglycoside precursor. Double beta-glycosylation was achieved using strained cyclic 2-p-methoxybenzyl-3,5-TIPDS Araf thioglycoside donor. (C) 2012 Elsevier Ltd. All rights reserved.
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