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methyl α-L-mycaroside | 18424-67-4

中文名称
——
中文别名
——
英文名称
methyl α-L-mycaroside
英文别名
(2S,3S,4R,6R)-6-methoxy-2,4-dimethyloxane-3,4-diol
methyl α-L-mycaroside化学式
CAS
18424-67-4
化学式
C8H16O4
mdl
——
分子量
176.213
InChiKey
YLMFFJPPIFKCBQ-FKSUSPILSA-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:
    55 °C
  • 沸点:
    272.5±40.0 °C(Predicted)
  • 密度:
    1.15±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    -0.4
  • 重原子数:
    12
  • 可旋转键数:
    1
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    1.0
  • 拓扑面积:
    58.9
  • 氢给体数:
    2
  • 氢受体数:
    4

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:
    Substrate Flexibility of Vicenisaminyltransferase VinC Involved in the Biosynthesis of Vicenistatin
    摘要:
    A glycosyltransferase VinC is involved in the biosynthesis of antitumor beta-glycoside antibiotic vicenistatin. It catalyzes a glycosyl transfer reaction between dTDP-alpha-D-vicenisamine and vicenilactam. Previous identification of its broad substrate specificity toward various glycosyl acceptors enabled us to explore the potential of VinC for glycodiversification. In vitro study of the substrate specificity toward several dTDP-sugars with vicenilactam established that VinC displayed activities with alpha-anomers of several dTDP-2-deoxy-D-sugars such as mycarose, digitoxose, olivose, and 2-deoxyglucose to afford respective beta-glycosides. Notably, beta-anomers of dTDP-2-deoxy-D-sugars also appeared to be accepted by VinC to form alpha-glycosides. Furthermore, VinC is capable of catalyzing glycosyl transfer reactions from both the alpha-anomer and beta-anomer of dTDP-L-mycarose, respectively, into beta-glycoside and alpha-glycoside. These results indicate that VinC is a unique glycosyltransferase possessing broad substrate specificity. The mechanism of this axially oriented glycosidic bond formation from the equatorially oriented dTDP-sugar might be explained by conformational change of dTDP-sugar to a boat conformation during the glycosyl transfer reaction. To apply these features of VinC for glycodiversification, 22 sets of structurally diverse glycosides were constructed using unnatural glycosyl donors and acceptors.
    DOI:
    10.1021/ja0685250
  • 作为产物:
    描述:
    L-rhamnopyranose奎宁环 、 lanthanium (III) chloride bis(lithium chloride) complex 、 2,4,5,6-四(9H-咔唑-9-基)异酞腈四丁基醋酸铵 、 manganese(II) acetate 作用下, 以 四氢呋喃二甲基亚砜乙腈 为溶剂, 反应 47.25h, 生成 methyl α-L-mycaroside
    参考文献:
    名称:
    通过锰促进的 1,2-自由基迁移获得 2- 和 4- 脱氧糖的统一策略
    摘要:
    由于存在多个在化学上几乎无法区分的 O-H 和 C-H 键,碳水化合物支架的选择性操作具有挑战性。因此,碳水化合物修饰通常需要基于保护基的合成策略。在这里,我们报告了一种简洁的半合成策略,以获取不同的 2-和 4-脱氧碳水化合物,而不依赖于保护基团的详尽使用来实现位点选择性反应结果。我们的方法利用 Mn 2+-促进氧化还原异构化步骤,该步骤通过在可见光介导的光氧化还原条件下通过中性氢原子提取获得的糖自由基中间体进行。由此产生的脱氧吡喃酮苷具有化学上可区分的官能团,并且很容易转化为不同的碳水化合物结构。为了展示这种方法的多功能性,我们报告了来自商业l - ristosamine、l-橄榄糖、l - mycarose 和l-洋地黄糖的稀有糖的权宜合成-鼠李糖。这里提出的发现验证了自由基中间体促进碳水化合物选择性转化的潜力,并展示了合成策略所带来的步骤和效率优势,从而最大限度地减少对保护基团的依赖。
    DOI:
    10.1021/jacs.1c05993
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文献信息

  • Horner-Wadsworth-Emmons Reactions as a Facile Entry to Biogenetic Key Substructures
    作者:Johann Mulzer、Andreas Sieg、Christoph Brücher、Dieter Müller、Harry J. Martin
    DOI:10.1055/s-2005-863705
    日期:——
    One-pot Horner-Wadsworth-Emmons reactions are used to synthesize α,β-enones with two configurationally independent stereogenic centers. These intermediates are used for the construction of polyketide and monosaccaride fragments. In particular, novel approaches to the branched pentoses mycarose and arcanose are described.
    一锅 Horner-Wadsworth-Emmons 反应用于合成具有两个构型独立的立体中心的 α,β-烯酮。这些中间体用于构建聚酮化合物和单糖片段。特别是,描述了分支戊糖 mycarose 和 Arcanose 的新方法。
  • Synthesis of mycarose and epi-axenose from non-carbohydrate precursors
    作者:William R. Roush、Susannah M. Hagadorn
    DOI:10.1016/0008-6215(85)85195-8
    日期:1985.2
    A six-step synthesis of racemic mycarose from allylacetylene is described. Key transformations include the threo-selective epoxidation of (E)-4-methyl-1,4-heptadien-6-ol and the alpha-opening of xylo-4,5-epoxy-4-methylhept-1-en-6-ol (7), which was accomplished via a neighboring group-assisted reaction of xylo-4,5-epoxy-4-methyl-6-(N-phenylcarbamoyloxy)hept-1-ene (12). The latter conversion proceeded
    描述了由烯丙基乙炔六步合成外消旋肉豆蔻。关键的转化包括(E)-4-甲基-1,4-庚二烯-6-ol的苏式选择性环氧化和xylo-4,5-环氧-4-甲基庚七-1-en-6-的α-开口醇(7),这是通过xylo-4,5-epoxy-4-methyl-6-(N-phenylcarbamoyloxy)hept-1-ene(12)的邻近基团辅助反应完成的。与三取代的环氧氨​​基甲酸酯相比,后一种转化的选择性更低(3:1),因为三取代的环氧化物更倾向于在叔中心发生具有SN1特征的取代。由12获得的核糖-4-甲基庚-1-烯-4,5,6-三醇5,6-碳酸酯的甲醇分解,产率高达61%,得到核糖-4-甲基庚-1-烯-4,5, 6-三醇,可通过臭氧分解转化为肉豆蔻。同样,lyxo-4-methylhept-1-ene-4,5的臭氧分解
  • De novo highly stereocontrolled synthesis of 2,6-dideoxy sugars by use of 2,6-anhydro-2-thio sugars
    作者:Kazunobu Toshima、Takehito Yoshida、Satsuki Mukaiyama、Kuniaki Tatsuta
    DOI:10.1016/0008-6215(91)89016-9
    日期:1991.12
    ribo -hexopyranose ( l -digitoxose) ( 33 ) have been stereospecifically synthesized through a highly stereoselective addition of a nucleophilic reagent to the C-3 carbonyl groups of methyl 2,6-anhydro-4- O -benzyl-2-thio-α- l - arabino -hexopyranosid-3-ulose ( 11 ) or methyl 2,6-anhydro-4- O -benzyl-2-thio-β- l - arabino -hexopyranosid-3-ulose ( 12 ) possessing 2,6-anhydro-2-thio structures. Anomers 11
    摘要代表性的2,6-二脱氧糖,1-cladinose(1),1-mycarose(2),1-oleandrose(3),1-olivose(4)及其所有C-3差向异构体2,6-双脱氧-3-C-甲基-3-O-甲基-1-阿拉伯糖-己糖(26),2,6-二脱氧-3-C-甲基-1-戊糖(1-寡果糖)(27),2通过立体定向合成了,6-二脱氧-3-O-甲基-1-核糖-己糖(l-cymarose)(32)和2,6-二脱氧-1-核糖-己糖(l-digitoxose)(33)。将亲核试剂高度立体选择性地加成到甲基2,6-脱水4-O-苄基-2-硫代-α-1-阿拉伯糖基-己吡喃糖苷-3-ulose(11)或甲基2的C-3羰基上具有2,6-脱水-2-硫代结构的1,6-脱水-4-O-苄基-2-硫代-β-1-阿拉伯糖-己吡喃糖苷-3-果糖(12)。异构体11和12均以立体控制的方式通过用Lewis处理常见的中间体甲基2
  • The megalomicins. Part IV. The structures of megalomicins A, B, C1, and C2
    作者:Robert S. Jaret、Alan K. Mallams、Hans Reimann
    DOI:10.1039/p19730001374
    日期:——
    The elucidation of the structures and absolute stereochemistry of megalomicins A, B, C1, and C2, a group of macrolide antibiotics elaborated by Micromonospora megalomicea sp. n., is described. Megalomicin A has been shown to be (2R,3S,4S,5R,6R,8R,10R 11R,12S,13R)-3-(2,6-dideoxy-3-C-methyl-α-L-ribo-hexopyranosyloxy)-6,12-di-hydroxy-4,6,8,10,12-hexamethyl-9-oxo-11-(2,3,6-trideoxy-3-dimethylalmino-β-
    阐明了巨果霉素A,B,C 1和C 2的结构和绝对立体化学,这是由巨果单孢菌(Micromonospora megalomicea sp。)精心制作的一组大环内酯类抗生素。描述。巨型霉素A已显示为(2 R,3 S,4 S,5 R,6 R,8 R,10 R 11 R,12 S,13 R)-3-(2,6-二脱氧-3- C甲基α-大号-核糖-hexopyranosyloxy)-6,12 -二羟基4,6,8,10,12六甲基-9-氧代-11-(2,3,6-三脱氧-3- dimethylalmino -β- d -来苏-hexopyranosyloxy)-5-(3,4,6-三脱氧-3-二甲基氨基- β- d -木糖- hexopyranosyloxy)十五烷-13-内酯。业已证明,巨果霉素B,C 1和C 2是在3-糖基系统中被酰化的巨果霉素A的衍生物。
  • Synthesis of Ketodeoxysugars from Acylated Pyranosides Using Photoredox Catalysis and Hydrogen Atom Transfer
    作者:Julia A. Turner、Nicholas Rosano、Daniel J. Gorelik、Mark S. Taylor
    DOI:10.1021/acscatal.1c03050
    日期:2021.9.3
    The combined action of a photoredox catalyst, a hydrogen atom transfer mediator, and a hydrogen bond acceptor cocatalyst has been used to achieve the transformation of pyranoside-derived esters into ketodeoxysugars. The position of the acyl group dictates the site of deoxygenation, enabling the preparation of 2-deoxy- and 4-deoxyketosugar derivatives. The products are useful precursors to rare sugar
    光氧化还原催化剂、氢原子转移介质和氢键受体助催化剂的联合作用已被用于实现吡喃糖苷衍生酯向酮脱氧糖的转化。酰基的位置决定了脱氧位点,从而能够制备 2-脱氧和 4-脱氧酮糖衍生物。这些产品是生物活性次级代谢产物的稀有糖成分的有用前体。计算研究与自由基裂解酶机制一致,其中关键消除步骤通过自由基中间体中的 1,2-酰氧基迁移进行。
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