6-bromoumbelliferone | 54102-22-6

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 香豆素及其衍生物
• 英文名称: 6-bromoumbelliferone
• 英文别名: 6-bromo-7-hydroxy-chromen-2-one；6-bromo-7-hydroxy-coumarin；6-Brom-7-hydroxy-cumarin；6-Bromo-7-hydroxy-2H-1-benzopyran-2-one；6-bromo-7-hydroxychromen-2-one
• CAS: 54102-22-6
• 化学式: C₉H₅BrO₃
• 分子量: 241.041
• InChiKey: JDANGKVKRGSKKA-UHFFFAOYSA-N

物化性质

• 熔点：
  283 °C
• 沸点：
  386.2±42.0 °C(Predicted)
• 密度：
  1.830±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  13
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  6-bromoumbelliferone 在 palladium diacetate 吡啶 、 四丁基溴化铵 、 碳酸氢钠 、 potassium carbonate 、 对甲苯磺酰氯 作用下， 以 N,N-二甲基甲酰胺 、 丙酮 为溶剂， 反应 50.0h， 生成 citrubuntin
  参考文献：
  名称：

  Reisch, Johannes; Herath, H. M. T. Bandara; Kumar, N. Savitri, Liebigs Annalen der Chemie, 1990, # 9, p. 931 - 933

  摘要：

  DOI：
• 作为产物：
  描述：

  6-bromo-7-hydroxy-2-oxo-2H-chromene-3-carboxylic acid 以42%的产率得到
  参考文献：
  名称：

  SHIROKOVA, E. A.;SEGIL, G. M.;TORGOV, I. V., BIOORGAN. XIMIYA, 14,(1988) N 2, 236-242

  摘要：

  DOI：

文献信息

• Chemically patterned hydrogels, manufacture and use thereof
  申请人：Shoichet Molly

  公开号：US20080286360A1

  公开（公告）日：2008-11-20

  A chemically patterned modified hydrogel formed from a modified hydrogel is provided. The hydrogel is conjugated with a multiphoton photocleavable molecule. The molecule has a multiphoton-labile protective group and a protected group. The protective group is cleavable upon multiphoton excitation to deprotect the protected group, without substantial polymerization of the hydrogel. The chemically patterned modified hydrogel is formed by exposing the modified hydrogel to multiphoton excitation to deprotect a portion of the protected groups.

  提供了一种化学图案化的改性水凝胶，该水凝胶由改性水凝胶形成。水凝胶与多光子光可裂解分子偶联。该分子具有多光子敏感保护基团和受保护基团。保护基团在多光子激发下可裂解，以解除对受保护基团的保护，而不会显著聚合水凝胶。通过将改性水凝胶暴露于多光子激发以解除部分受保护基团的保护，形成化学图案化的改性水凝胶。
• STIMULI-SWITCHABLE MOIETIES, MONOMERS AND POLYMERS INCORPORATING STIMULI-SWITCHABLE MOIETIES, AND METHODS OF MAKING AND USING SAME
  申请人：THE GOVERNORS OF THE UNIVERSITY OF ALBERTA

  公开号：US20170267689A1

  公开（公告）日：2017-09-21

  Stimuli-switchable moieties, monomers incorporating stimuli-switchable moieties, and polymers incorporating such stimuli-switchable moieties are provided. The stimuli-switchable moiety can be a pyrano aryl chromenone-derivative. The stimuli-switchable monomer can be a lactone monomer. The stimuli-switchable monomer can be an amino acid, which can be incorporated into a specific peptide sequence by peptide synthesis.

  提供刺激响应性基团、包含刺激响应性基团的单体以及包含此类刺激响应性基团的聚合物。刺激响应性基团可以是吡喃并芳基色烯酮衍生物。刺激响应性单体可以是内酯单体。刺激响应性单体可以是氨基酸，其可以通过肽合成并入特定的肽序列中。
• Optically-Detectable Enzyme Substrates and Their Method of Use
  申请人：Life Technologies Corporation

  公开号：US20160139135A1

  公开（公告）日：2016-05-19

  The present invention relates to compounds that are substrates for an enzyme, and upon reaction with the enzyme provide a detectable response, such as an optically detectable response. In particular, the compounds have utility in detecting the presence of a β-lactamase in a sample. In addition to the compounds, methods are disclosed for analyzing a sample for the presence of a β-lactmase, for example, as an indicator of expression of a nucleic acid sequence including a sequence coding for a β-lactmase. Kits are disclosed that include the disclosed compounds and additional components, for example, cells, antibodies, a β-lactmase or instructions for using the components in an assay.

  本发明涉及一种酶底物化合物，与酶反应后产生可检测的响应，例如光学可检测的响应。具体而言，这些化合物在检测样品中β-内酰胺酶的存在方面具有实用性。除了这些化合物外，还公开了用于分析样品中β-内酰胺酶存在的方法，例如，作为表达包括编码β-内酰胺酶序列的核酸序列的指示器。还公开了包括这些化合物和额外组分的试剂盒，例如细胞、抗体、β-内酰胺酶或使用这些组分进行检测的说明书。
• Caspase-1 imaging probes
  申请人：Sanofi-Aventis Deutschland GmbH

  公开号：EP2848696A1

  公开（公告）日：2015-03-18

  The present invention relates to molecular probes of the formula (I) as defined herein that allow for the observation of the catalytic activity capase-1 in in vitro assays, in cells or in multicellular organisms, and the use thereof in medicine.

  本发明涉及分子探针的公式(I)，如本文所定义，该探针允许在体外实验、细胞或多细胞生物体中观察卡泊酶-1的催化活性，并将其用于医学。
• NOVEL PHOTOACTIVABLE FLUORESCENT DYES FOR OPTICAL MICROSCOPY AND IMAGING TECHNIQUES
  申请人：Hell Stefan W.

  公开号：US20120202216A1

  公开（公告）日：2012-08-09

  The present invention relates to novel photoactivable rhodamine or carbopyronine derivatives of the following general formulae G1-G4 (I), G1: A1=O, A2=N, A3=C; G2: A1=S, A2=N, A3=C; G3: A1=O, A2=O, A3=N; G4: A1=S, A2=O, A3=N; comprising UV light absorbing chromophores which after photolysis by irradiation at 254-490 nm (preferably at 375-420 nm) generate fluorescent rhodamine or carbopyronine derivatives and small non-toxic fragments such as N 2 or N 2 O. The invention also relates to methods for preparing such compounds and to the use of these compounds for optical microscopy and imaging techniques.

  本发明涉及以下通式G1-G4（I）的新型光致发色基础或羧基吡咯烷衍生物，其中：G1：A1=O，A2=N，A3=C；G2：A1=S，A2=N，A3=C；G3：A1=O，A2=O，A3=N；G4：A1=S，A2=O，A3=N；包括吸收紫外光的色团，经过254-490 nm的光解作用（最好在375-420 nm下），产生荧光的罗丹明或羧基吡咯烷衍生物和小的无毒碎片，例如N2或N2O。本发明还涉及制备这种化合物的方法以及将这些化合物用于光学显微镜和成像技术的使用。