t-butyl 4-hydroxy-3-nitrobenzene-acetate | 518977-84-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: t-butyl 4-hydroxy-3-nitrobenzene-acetate
• 英文别名: tert-butyl 2-(4-hydroxy-3-nitrophenyl)acetate
• CAS: 518977-84-9
• 化学式: C₁₂H₁₅NO₅
• 分子量: 253.255
• InChiKey: SVWFCYXYMMUOOF-UHFFFAOYSA-N

物化性质

• 沸点：
  354.2±27.0 °C(Predicted)
• 密度：
  1.253±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  18
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  92.4
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  t-butyl 4-hydroxy-3-nitrobenzene-acetate 、 1-(2-溴乙氧基)-2-硝基苯 在 potassium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 2.5h， 以90%的产率得到
  参考文献：
  名称：

  Design and synthesis of a second-generation ligand-tethered calcium indicator for plant cell biology based on the fundamental analyses of the structure and physical property

  摘要：

  Calcium ion (Ca2+) is one of the most important second messengers. However, conventional Ca2+ indicators cannot be applied in plant cells. In previous paper, we developed the first-generation protein-ligand tethered calcium indicator that can be applied for living plant cells.Here, we will report the development of second-generation indicator based on the detailed examination on physical properties of the first-generation to improve the drawbacks. Through the examination, we also found that cell permeability of the probe is strongly affected by their aggregation properties. Our findings will provide new strategy for the design of synthetic indicators. (C) 2017 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2017.04.023
• 作为产物：
  描述：

  4-羟基-3-硝基苯乙酸 、 叔丁醇 在 4-二甲氨基吡啶 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 16.0h， 以36%的产率得到t-butyl 4-hydroxy-3-nitrobenzene-acetate
  参考文献：
  名称：

  Design and synthesis of a second-generation ligand-tethered calcium indicator for plant cell biology based on the fundamental analyses of the structure and physical property

  摘要：

  Calcium ion (Ca2+) is one of the most important second messengers. However, conventional Ca2+ indicators cannot be applied in plant cells. In previous paper, we developed the first-generation protein-ligand tethered calcium indicator that can be applied for living plant cells.Here, we will report the development of second-generation indicator based on the detailed examination on physical properties of the first-generation to improve the drawbacks. Through the examination, we also found that cell permeability of the probe is strongly affected by their aggregation properties. Our findings will provide new strategy for the design of synthetic indicators. (C) 2017 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2017.04.023

文献信息

• .beta.-lactams useful in determining the amount of elastase in a
  申请人：Merck & Co., Inc.

  公开号：US05229510A1

  公开（公告）日：1993-07-20

  Disclosed are .beta.-lactams of formula I ##STR1## wherein X is a chromogenic or fluorogenic substituted aryl or heteroaryl, which are specific inhibitors of Human leukocyte elastase (HLE). Upon contact with HLE these compounds are cleaved to form a chromogenic or fluorogenic species which may be readily measured by the assay disclosed herein. The assay thus provides a means for direct measurement of the amount of active HLE in a body fluid or other sample.

  本发明涉及一种公式I的.beta.-内酰胺，其中X是具有色素或荧光基团的取代芳基或杂环芳基，是人类白细胞弹性蛋白酶（HLE）的特异性抑制剂。这些化合物在接触HLE时会被切割形成一种色素或荧光物种，可以通过此处披露的测定方法轻松测量。因此，该测定方法提供了一种直接测量体液或其他样品中活性HLE数量的手段。
• US5229510A
  申请人：——

  公开号：US5229510A

  公开（公告）日：1993-07-20
• Design and synthesis of a second-generation ligand-tethered calcium indicator for plant cell biology based on the fundamental analyses of the structure and physical property
  作者：Yousuke Takaoka、Masaki Imai、Miyuki Shigenaga、Minoru Ueda

  DOI：10.1016/j.tet.2017.04.023

  日期：2017.5

  Calcium ion (Ca2+) is one of the most important second messengers. However, conventional Ca2+ indicators cannot be applied in plant cells. In previous paper, we developed the first-generation protein-ligand tethered calcium indicator that can be applied for living plant cells.Here, we will report the development of second-generation indicator based on the detailed examination on physical properties of the first-generation to improve the drawbacks. Through the examination, we also found that cell permeability of the probe is strongly affected by their aggregation properties. Our findings will provide new strategy for the design of synthetic indicators. (C) 2017 Elsevier Ltd. All rights reserved.