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O-(3,4,6-tri-O-benzyl-2-deoxy-2-nitro-α-D-galactopyranosyl)-N-(t-butyloxycarbonyl)-L-serine methyl ester | 1013026-18-0

中文名称
——
中文别名
——
英文名称
O-(3,4,6-tri-O-benzyl-2-deoxy-2-nitro-α-D-galactopyranosyl)-N-(t-butyloxycarbonyl)-L-serine methyl ester
英文别名
methyl (2S)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-3-[(2S,3R,4R,5R,6R)-3-nitro-4,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]oxypropanoate
O-(3,4,6-tri-O-benzyl-2-deoxy-2-nitro-α-D-galactopyranosyl)-N-(t-butyloxycarbonyl)-L-serine methyl ester化学式
CAS
1013026-18-0
化学式
C36H44N2O11
mdl
——
分子量
680.752
InChiKey
LMLCJSOBGREYAB-KJVBWLMSSA-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):
    4.6
  • 重原子数:
    49
  • 可旋转键数:
    18
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    0.44
  • 拓扑面积:
    157
  • 氢给体数:
    1
  • 氢受体数:
    11

上下游信息

  • 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:
    描述:
    O-(3,4,6-tri-O-benzyl-2-deoxy-2-nitro-α-D-galactopyranosyl)-N-(t-butyloxycarbonyl)-L-serine methyl ester吡啶叠氮磷酸二苯酯 、 palladium 10% on activated carbon 、 氢气溶剂黄146三乙胺 、 lithium hydroxide 作用下, 以 甲醇乙醇N,N-二甲基甲酰胺 为溶剂, 反应 109.5h, 生成 (3S,5aR,6R,7R,8R,9aS)-3-[N-(tert-butoxycarbonyl)amino]-6,7-bis(acetoxy)-8-[(acetoxy)methyl]octahydropyrano[2,3-b][1,5]oxazepin-4-one
    参考文献:
    名称:
    通过 O-糖基氨基酸的闭环方便地合成吡喃并 [2,3-b] [1,5] 氧氮杂
    摘要:
    N-Boc 保护的丝氨酸和苏氨酸酯可以很容易地添加到 2-硝基糖中,分别提供具有半乳糖和葡萄糖构型的 α- 和 β-端基异构体。硝基还原为氨基以及酯裂解产生化合物 2、6 和 11,它们可以被视为二肽模拟物。从这些化合物中,通过闭环制备双环吡喃并 [2.3-b] [1.5] 氧氮杂 7-14。
    DOI:
    10.1002/ejoc.201101148
  • 作为产物:
    描述:
    Boc-L-丝氨酸甲酯3,4,6-tri-O-benzyl-2-nitro-D-galactal 在 1,3-bis(2,6-diisopropylphenyl)imidazolium chloride 、 caesium carbonate 作用下, 以 四氯化碳正己烷 为溶剂, 反应 24.5h, 以95%的产率得到O-(3,4,6-tri-O-benzyl-2-deoxy-2-nitro-α-D-galactopyranosyl)-N-(t-butyloxycarbonyl)-L-serine methyl ester
    参考文献:
    名称:
    N-杂环碳烯催化2-硝基半乳糖的立体选择性糖基化。
    摘要:
    首次开发了一种有效的N-杂环卡宾催化2-硝基半乳糖与醇和苯酚的糖基化反应。可以以高至优异的产率和高至优异的α-选择性获得各种各样的1,2-顺式-2-硝基糖苷。
    DOI:
    10.1021/acs.orglett.7b02543
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文献信息

  • <i>N</i>-Heterocyclic Carbene Catalyzed Stereoselective Glycosylation of 2-Nitrogalactals
    作者:Jia-Lin Liu、Yu-Tong Zhang、Hang-Fan Liu、Ling Zhou、Jie Chen
    DOI:10.1021/acs.orglett.7b02543
    日期:2017.10.6
    An efficient N-heterocyclic carbene catalyzed glycosylation of 2-nitrogalactals with alcohols and phenol has been developed for the first time. A wide variety of 1,2-cis-2-nitroglycosides can be obtained with good to excellent yields and high to excellent α-selectivities.
    首次开发了一种有效的N-杂环卡宾催化2-硝基半乳糖与醇和苯酚的糖基化反应。可以以高至优异的产率和高至优异的α-选择性获得各种各样的1,2-顺式-2-硝基糖苷。
  • Stereoselective Glycosylation of 2-Nitrogalactals Catalyzed by a Bifunctional Organocatalyst
    作者:Sandra Medina、Matthew J. Harper、Edward I. Balmond、Silvia Miranda、Giacomo E. M. Crisenza、Diane M. Coe、Eoghan M. McGarrigle、M. Carmen Galan
    DOI:10.1021/acs.orglett.6b01962
    日期:2016.9.2
    The use of a bifunctional cinchona/thiourea organocatalyst for the direct and α-stereoselective glycosylation of 2-nitrogalactals is demonstrated for the first time. The conditions are mild, practical, and applicable to a wide range of glycoside acceptors with products being isolated in good to excellent yields. The method is exemplified in the synthesis of mucin type Core 6 and 7 glycopeptides.
    首次证明了双功能金鸡纳/硫脲有机催化剂用于2-硝基半乳糖的直接和α-立体选择性糖基化的用途。条件温和,实用,适用于各种糖苷受体,分离产物的收率良好至极佳。该方法在合成粘蛋白型核心6和7糖肽中得到了例证。
  • Synthesis of novel d-α-galactopyranosyl-l-seryl/l-threonyl-l-alanyl-l-alanine as useful precursors of new glycopeptide antibiotics with computational calculations studies
    作者:Ahmed I. Khodair、Shaymaa E. Kassab、Nabila A. Kheder、Asmaa M. Fahim
    DOI:10.1016/j.carres.2022.108546
    日期:2022.4
    of the new glycopeptide derivatives 10a,b is confirmed by assessing the physical character, HOMO-LUMO gap energy, ESP, and the corresponding correlation of 2D-NMR analysis. Furtherly, the target precursors are investigated via the DFT/B3LYP/6–311(G) basis set.
    描述了用于制备新型糖肽抗生素的新的、简单的合成路线。合成化合物的结构通过红外、二维核磁共振光谱和质谱进行了阐明。新糖肽衍生物10a、b的稳定性通过评估物理特性、HOMO-LUMO 间隙能量、ESP 和 2D-​​NMR 分析的相应相关性得到证实。此外,通过DFT/B3LYP/6-311(G) 基组研究目标前体。
  • Methyl esters: an alternative protecting group for the synthesis of O-glycosyl amino acid building blocks
    作者:Carlos Mayato、Rosa L. Dorta、Jesús T. Vázquez
    DOI:10.1016/j.tetlet.2007.12.078
    日期:2008.2
    are fundamental building blocks for glycopeptide synthesis, Schmidt’s synthesis method often being chosen for this purpose. Methyl esters used as orthogonal carboxylic acid protecting group in this procedure were found to be an efficient and inexpensive alternative to other groups. The mild selective methyl ester deprotection by LiI improved the efficiency of the synthesis method.
    糖基氨基酸α-GalNAc-Ser和α-GalNAc-Thr是糖肽合成的基本构件,为此经常选择施密特的合成方法。发现在该方法中用作正交羧酸保护基的甲酯是其他基团的有效且廉价的替代物。LiI温和的选择性甲酯脱保护提高了合成方法的效率。
  • Superbase-Catalyzed Stereo- and Regioselective Glycosylation with 2-Nitroglycals: Facile Access to 2-Amino-2-deoxy-<i>O</i>-glycosides
    作者:Kumar Bhaskar Pal、Aoxin Guo、Mrinmoy Das、Gábor Báti、Xue-Wei Liu
    DOI:10.1021/acscatal.0c00753
    日期:2020.6.19
    An efficient superbase-catalyzed stereo- and regioselective glycosylation of 2-nitroglycals with high functional group compatibility is reported. The ion pair generated from alcohol and a catalytic amount of P-4-t-Bu was vital for the successful implementation of this stereoselective glycosylation under mild conditions, producing moderate to good yields. Under reported reaction conditions, 2-nitrogalactals produce alpha-stereoisomers exclusively, while 2-nitroglucal yielded more beta-products. The notable difference between the outcomes was investigated by the density functional theory (DFT) study. In addition, we have synthesized the key intermediate of a mucin-type core-6 glycoconjugate, thus illustrating the synthetic potency of this method.
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