3-bromo-4,5-dihydroxybenzenesulfonic acid | 119735-59-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 3-bromo-4,5-dihydroxybenzenesulfonic acid
• CAS: 119735-59-0
• 化学式: C₆H₅BrO₅S
• 分子量: 269.073
• InChiKey: RKXUCROUFWFXNM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.7
• 重原子数：
  13
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  103
• 氢给体数：
  3
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  3-bromo-4,5-dihydroxybenzenesulfonic acid 在 五氯化磷 、 硫酸 、 2,4-滴二甲胺盐 、 三乙胺 作用下， 以 环丁砜 、 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 反应 1.0h， 生成 (6R,7R)-7-{2-(2-Amino-thiazol-4-yl)-2-[(Z)-1-carboxy-1-methyl-ethoxyimino]-acetylamino}-3-[(3,4-diacetoxy-5-bromo-benzenesulfonylamino)-methyl]-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid
  参考文献：
  名称：

  Synthesis and structure-activity relationships of cephalosporins with C-3' catechol-containing residues

  摘要：

  Cephalosporins with new catechol substituents at C-3' have been synthesized, including novel compounds with C-3' carbon-carbon bonds. Many of these compounds have high potency against Gram-negative bacteria, in particular against resistant strains like Pseudomonas aeruginosa. Structure-activity relationships are discussed in terms of their dependence on the pK(a) of the C-3' catechol and also in terms of steric and conformational factors of the C-3' substituent. The best overall properties were found in compounds with a bulky and/or conformationally restricted acidic C-3' catechol.

  DOI：

  10.1021/jm00092a014
• 作为产物：
  描述：

  barium 3,4-dihydroxybenzenesulfonate 在 溴 、 溶剂黄146 作用下， 反应 20.0h， 以76%的产率得到3-bromo-4,5-dihydroxybenzenesulfonic acid
  参考文献：
  名称：

  Synthesis and structure-activity relationships of cephalosporins with C-3' catechol-containing residues

  摘要：

  Cephalosporins with new catechol substituents at C-3' have been synthesized, including novel compounds with C-3' carbon-carbon bonds. Many of these compounds have high potency against Gram-negative bacteria, in particular against resistant strains like Pseudomonas aeruginosa. Structure-activity relationships are discussed in terms of their dependence on the pK(a) of the C-3' catechol and also in terms of steric and conformational factors of the C-3' substituent. The best overall properties were found in compounds with a bulky and/or conformationally restricted acidic C-3' catechol.

  DOI：

  10.1021/jm00092a014

文献信息

• Cephalosporin compounds, process for their preparation and pharmaceutical compositions containing them
  申请人：ZENECA Pharma S.A.

  公开号：EP0267733A2

  公开（公告）日：1988-05-18

  ephalosporin compounds having a 3-position substituent of the formula (I) are described: wherein Y is a linking group -NR4CO-Y'-, -NR4SOrY'-, -OCO-Y;-or -SCO-Y'-wherein R4 is hydrogen, various optionally substituted alkyl groups or alkenyl and Y' is a bond or various optionally substituted alkylene or alkenylene groups; and Q is a benzene ring (optionally fused to a further benzene ring so forming a naphthyl group or optionally fused to a 5 or 6 membered heterocyclic aromatic group containing 1, 2 or 3 heteroatoms selected from nitrogen, oxygen and sulphur), said benzene ring (or in the case of naphthyl either benzene ring) being substituted by groups R1 and R2 which are ortho with respect to one another, wherein R' is hydroxy or an in vivo hydrolysable ester thereof and R2 is hydroxy, an in vivo hydrolysable ester thereof, carboxy, sulpho, hydroxymethyl, methanesulphonamido or ureido; or Q is a group of the formula (II) or (III): wherein M is oxygen or a group NR3 wherein R3 is hydrogen or C1-4 alkyl; ring Q being further optionally substituted. The use of such compounds as antibacterial agents is described as are processes for their preparation and intermediates therefor.

  描述了具有式（I）的 3 位取代基的头孢菌素化合物： 其中 Y 是连接基团-NR4CO-Y'-、-NR4SOrY'-、-OCO-Y;-或-SCO-Y'-，其中 R4 是氢、各种任选取代的烷基或烯基，Y'是键或各种任选取代的亚烷基或烯基；Q 是苯环（可选择与另一个苯环融合形成萘基，或可选择与含有 1、2 或 3 个选自氮、氧和硫的杂原子的 5 或 6 位杂环芳基融合）、所述苯环（或萘基中的任一苯环）被彼此正交的基团 R1 和 R2 取代，其中 R' 为羟基或其体内可水解的酯，R2 为羟基、其体内可水解的酯、羧基、磺基、羟甲基、甲磺酰胺基或脲基；或 Q 是式 (II) 或 (III) 的基团： 其中 M 是氧或基团 NR3，其中 R3 是氢或 C1-4 烷基；环 Q 可进一步被任选取代。 本文介绍了此类化合物作为抗菌剂的用途，以及其制备工艺和中间体。
• US5017569A
  申请人：——

  公开号：US5017569A

  公开（公告）日：1991-05-21
• Synthesis and structure-activity relationships of cephalosporins with C-3' catechol-containing residues
  作者：J. C. Arnould、A. Bertrandie、T. G. C. Bird、D. Boucherot、F. Jung、J. J. Lohmann、A. Olivier、J. P. Bailey、W. Bell、G. M. Davies

  DOI：10.1021/jm00092a014

  日期：1992.7

  Cephalosporins with new catechol substituents at C-3' have been synthesized, including novel compounds with C-3' carbon-carbon bonds. Many of these compounds have high potency against Gram-negative bacteria, in particular against resistant strains like Pseudomonas aeruginosa. Structure-activity relationships are discussed in terms of their dependence on the pK(a) of the C-3' catechol and also in terms of steric and conformational factors of the C-3' substituent. The best overall properties were found in compounds with a bulky and/or conformationally restricted acidic C-3' catechol.