phenyl 2,4,6-tri-O-acetyl-3-deoxy-3-fluoro-1-thio-β-D-glucopyranoside | 931095-50-0

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: phenyl 2,4,6-tri-O-acetyl-3-deoxy-3-fluoro-1-thio-β-D-glucopyranoside
• 英文别名: [(2R,3R,4S,5R,6S)-3,5-diacetoxy-4-fluor-6-phenylsulfanyl-tetrahydropyran-2-yl]methyl acetate；[(2R,3R,4S,5R,6S)-3,5-diacetoxy-4-fluoro-6-phenylsulfanyl-tetrahydropyran-2-yl]methyl acetate；[(2R,3R,4S,5R,6S)-3,5-diacetyloxy-4-fluoro-6-phenylsulfanyloxan-2-yl]methyl acetate
• CAS: 931095-50-0
• 化学式: C₁₈H₂₁FO₇S
• 分子量: 400.425
• InChiKey: KFDGJUYKCRQUQF-ILOCAZANSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  27
• 可旋转键数：
  9
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  113
• 氢给体数：
  0
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  phenyl 2,4,6-tri-O-acetyl-3-deoxy-3-fluoro-1-thio-β-D-glucopyranoside 在 三氟甲磺酸酐 4 A molecular sieve 、 camphor-10-sulfonic acid 、 sodium methylate 、 sodium hydride 、 sulfobromophthalein sodium 作用下， 以 甲醇 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 14.5h， 生成 methyl 2,3,6-tri-O-benzyl-4-O-(2-O-benzyl-4,6-O-benzylidene-3-deoxy-3-fluoro-β-D-glucopyranosyl)-α-D-glucopyranoside
  参考文献：
  名称：

  4,6-O-Benzylidene-Directed β-Mannopyranosylation and α-Glucopyranosylation:  The 2-Deoxy-2-fluoro and 3-Deoxy-3-fluoro Series of Donors and the Importance of the O2−C2−C3−O3 Interaction

  摘要：

  A series of 4,6-O-benzylidene-protected 2-O-benzyl-3-deoxy-3-fluoro- and 3-O-benzyl-2-deoxy-2-fluorogluco- and mannopyranosyl thioglycosides were synthesized and their coupling reactions with a series of alcohols, on preactivation with 1-benzenesulfinylpiperidine and trifluoromethanesulfonic anhydride, investigated. In all cases, the selectivities were lower than those observed with the corresponding simple 4,6-O-benzylidene 2,3-di-O-benzylgluco- and mannopyranosyl thioglycosides. This leads to the conclusion that the high beta-selectivity observed with 4,6-O-benzylidene 2,3-di-O-benzylmannopyranosyl donors under the same conditions is in large part derived from the compression of the O2-C2-C3-O3 torsion angle on going from the intermediate covalent glycosyl triflate to the oxacarbenium ion, as compared to the relaxation of this torsion angle in the gluco series.

  DOI：

  10.1021/jo062294y
• 作为产物：
  描述：

  (3S,4S,5R,6R)-4-fluoro-6-(hydroxymethyl)tetrahydro-2H-pyran-2,3,5-triol 在 吡啶 、 4-二甲氨基吡啶 、 三氟化硼乙醚 作用下， 以 二氯甲烷 为溶剂， 反应 17.0h， 生成 phenyl 2,4,6-tri-O-acetyl-3-deoxy-3-fluoro-1-thio-β-D-glucopyranoside
  参考文献：
  名称：

  4,6-O-Benzylidene-Directed β-Mannopyranosylation and α-Glucopyranosylation:  The 2-Deoxy-2-fluoro and 3-Deoxy-3-fluoro Series of Donors and the Importance of the O2−C2−C3−O3 Interaction

  摘要：

  A series of 4,6-O-benzylidene-protected 2-O-benzyl-3-deoxy-3-fluoro- and 3-O-benzyl-2-deoxy-2-fluorogluco- and mannopyranosyl thioglycosides were synthesized and their coupling reactions with a series of alcohols, on preactivation with 1-benzenesulfinylpiperidine and trifluoromethanesulfonic anhydride, investigated. In all cases, the selectivities were lower than those observed with the corresponding simple 4,6-O-benzylidene 2,3-di-O-benzylgluco- and mannopyranosyl thioglycosides. This leads to the conclusion that the high beta-selectivity observed with 4,6-O-benzylidene 2,3-di-O-benzylmannopyranosyl donors under the same conditions is in large part derived from the compression of the O2-C2-C3-O3 torsion angle on going from the intermediate covalent glycosyl triflate to the oxacarbenium ion, as compared to the relaxation of this torsion angle in the gluco series.

  DOI：

  10.1021/jo062294y

文献信息

• [EN] AMINOGLYCOSIDES AND USES THEREOF<br/>[FR] AMINOGLYCOSIDES ET LEURS UTILISATIONS
  申请人：ACHAOGEN INC

  公开号：WO2019046126A1

  公开（公告）日：2019-03-07

  Provided herein are aminoglycoside compounds, such as compounds of formula (I), (II), (III), (IV), (IVa), (V), (VI), (VIIa), or (VIIb) or pharmaceutically acceptable salts, solvates, stereoisomers, or tautomers of any of the foregoing, useful as therapeutic or prophylactic agents. Also provided herein are methods for their preparation. The compounds may be useful in treating a bacterial infection in a subject, for example a Gram-negative bacterial infection.

  本文提供了氨基糖苷化合物，例如式(I)、(II)、(III)、(IV)、(IVa)、(V)、(VI)、(VIIa)或(VIIb)的化合物，或者上述任何一个的药用盐、溶剂化合物、立体异构体或互变异构体，可用作治疗或预防剂。本文还提供了它们的制备方法。这些化合物可能在治疗受试者的细菌感染方面有用，例如革兰氏阴性细菌感染。
• [EN] MODULAR SYNTHESIS OF AMINOGLYCOSIDES<br/>[FR] SYNTHÈSE MODULAIRE D'AMINOGLYCOSIDES
  申请人：ACHAOGEN INC

  公开号：WO2019194858A1

  公开（公告）日：2019-10-10

  The present disclosure relates to novel methods for preparing antibacterial aminoglycoside compounds and the compounds used in such preparations.

  本公开涉及制备抗菌氨基糖苷化合物的新方法以及用于这种制备中的化合物。
• Mechanistic Investigation of 1,2-Diol Dehydration of Paromamine Catalyzed by the Radical <i>S</i>-Adenosyl-<scp>l</scp>-methionine Enzyme AprD4
  作者：Yu-Cheng Yeh、Hak Joong Kim、Hung-wen Liu

  DOI：10.1021/jacs.1c00076

  日期：2021.4.7

  mechanism, several substrate analogues were synthesized and their fates upon incubation with AprD4 were analyzed. The results support a mechanism involving formation of a ketyl radical intermediate followed by direct elimination of the C3′-hydroxyl group rather than that of a gem-diol intermediate generated via 1,2-migration of the C3′-hydroxyl group to C4′. The stereochemistry of hydrogen atom incorporation

  AprD4 是一种自由基S-腺苷-1-甲硫氨酸 (SAM) 酶，可催化巴马明的 C3'-脱氧以形成 4'-氧代-维生素 B。它是自由基 SAM 酶超家族中唯一已在体外被鉴定和表征的 1,2-二醇脱水酶. AprD4 催化的 1,2-二醇脱水是几种 C3'-脱氧-氨基糖苷生物合成的关键步骤。虽然已经建立了由 AprD4 催化的氢原子提取的区域化学，但后续化学转化的机制仍未完全了解。为了研究该机制，合成了几种底物类似物，并分析了它们与 AprD4 孵育后的命运。结果支持涉及形成羰基自由基中间体然后直接消除 C3'-羟基的机制，而不是通过 C3'-羟基向 C4' 的 1,2-迁移产生的偕二醇中间体的机制。还建立了自由基介导的脱水后氢原子掺入的立体化学。
• MODULAR SYNTHESIS OF AMINOGLYCOSIDES
  申请人：REVAGENIX, INC.

  公开号：US20220411456A1

  公开（公告）日：2022-12-29

  The present disclosure relates to novel methods for preparing antibacterial aminoglycoside compounds and the compounds used in such preparations.