α-(trifluoroacetyl)-γ-butyrolactone hydrate | 121749-65-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 内酯类
• 英文名称: α-(trifluoroacetyl)-γ-butyrolactone hydrate
• 英文别名: 2,3,4,5-Tetrahydro-2-oxo-3-[(2,2,2-tri-fluoro-1,1-dihydroxy)ethyl]furan；3-(2,2,2-Trifluoro-1,1-dihydroxyethyl)oxolan-2-one
• CAS: 121749-65-3
• 化学式: C₆H₇F₃O₄
• 分子量: 200.114
• InChiKey: UVUNIQLSVFYTIM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.5
• 重原子数：
  13
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.83
• 拓扑面积：
  66.8
• 氢给体数：
  2
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  α-(trifluoroacetyl)-γ-butyrolactone hydrate 在 磷酸吡哆醛 、 异丙基氨盐酸盐 作用下， 以 aq. phosphate buffer 为溶剂， 以82%的产率得到3-[(1S)-1-amino-2,2,2-trifluoroethyl]oxolan-2-one
  参考文献：
  名称：

  含氟手性胺类化合物的合成方法

  摘要：

  本发明提供了一种含氟手性胺类化合物的合成方法。该合成方法包括：氨基供体与含氟二羟基缩酮类化合物在转氨酶的催化下，反应生成含氟手性胺类化合物；其中，转氨酶来源于多个菌种。本申请的转氨酶对含氟二羟基缩酮类化合物具有底物特异性，能够有效催化此类底物转化为含氟手性胺类化合物，而且，该转氨酶对多种含氟二羟基缩酮类化合物都具有催化活性，反应选择性和活性均较高。该生物酶催化合成方法不仅路线短，产品收率高，而且大大降低了生产成本，减少了有机溶剂和三废产生。

  公开号：

  CN110950788B
• 作为产物：
  描述：

  三氟乙酸乙酯 以 盐酸 、 乙醚 、 乙醇 为溶剂， 以64.0 g (45.4%)的产率得到α-(trifluoroacetyl)-γ-butyrolactone hydrate
  参考文献：
  名称：

  Fluoroketone enzyme inhibitors

  摘要：

  一种用于酶免疫分析的方法，用于检测液体样品中可能存在的配体，包括利用至少两种酶和一个用于其中一种酶的阻断调节剂进行信号放大。液体中存在的配体与抗配体和标记酶的示踪剂结合。然后分离所得的结合分数，并且示踪剂中的酶去除阻断调节剂上的阻断基团。调节剂激活或抑制第二种酶，该酶催化底物转化为产物。液体中配体的存在或缺失由与产物相关的信号指示，例如颜色变化或颜色变化速率。该发明包括一类新型酶抑制剂和阻断抑制剂，以及用于执行该发明方法的一套有用材料。

  公开号：

  US05344952A1

文献信息

• Structural Effects on Thermal Rearrangement of Fulleroids to Methanofullerenes. The Prominent Role of Cyclopropyl vs Aryl Substituent
  作者：Hiroshi Kitamura、Takumi Oshima

  DOI：10.1021/ol702691y

  日期：2008.1.1

  The kinetics of the thermal rearrangement of a series of novel cyclopropyl-substituted [5,6] open fulleroids to the [6,6] closed methanofullerenes have been investigated in comparison with the aryl-substituted homologues. The cyclopropyl group markedly accelerated the rates due to the stereoelectronically favorable pi-conjugative effects in the radical-like [1,5] shift of the transient [5,6] closed

  与芳基取代的同系物相比，已经研究了一系列新的环丙基取代的[5,6]开环富勒烯热合成[6,6]封闭的亚甲基富勒烯的动力学。由于在瞬态[5,6]封闭异构体的自由基状[1,5]转移中，立体丙基有利的π共轭作用，环丙基大大加快了速率，从而取代了几何受约束的芳基。
• Signal enhancement in assay for an enzyme
  申请人：Becton, Dickinson and Company

  公开号：US04962024A1

  公开（公告）日：1990-10-09

  A method for assay for an unknown enzyme suspected to be present in a liquid includes signal amplification by use of a second enzyme and a blocked modulator for the second enzyme. Unknown enzyme in the liquid removes a blocking group from the blocked modulator. The resulting modulator activates or inhibits the second enzyme which catalyzes an indicator reaction in which a substrate is converted to a product. The presence or absence of the unknown enzyme in the liquid is indicated by a signal, such as a color change or a rate of color change, associated with the indicator reaction. The concentration of the enzyme in the sample may be determined by the measurement of the signal. The invention includes a kit of materials useful for performing the method of the invention. The method involves the hydrolyzing of a blocked fluoroketone inhibitor to facilitate the analytical method.

  一种用于检测液体中可能存在的未知酶的测定方法，包括使用第二种酶和第二种酶的阻塞调节剂进行信号放大。液体中的未知酶将阻塞基团从阻塞调节剂中去除。所得到的调节剂激活或抑制第二种酶，第二种酶催化指示反应，将底物转化为产物。与指示反应相关联的信号，如颜色变化或颜色变化速率，指示液体中是否存在未知酶。可以通过测量信号来确定样品中酶的浓度。本发明还包括一种用于执行本发明方法的材料套件。该方法涉及水解阻塞的氟酮抑制剂以促进分析方法。
• Signal enhancement in immunoassay by modulation of enzymatic catalysis
  申请人：Becton, Dickinson and Company

  公开号：US04835099A1

  公开（公告）日：1989-05-30

  A method for enzyme immunoassay for a ligand suspected to be present in a liquid sample includes signal amplification by use of at least two hydrolases and a blocked fluoroketone for one of the hydrolases. Ligand present in the liquid binds to an antiligand and a hydrolase-labeled tracer. The resulting bound fraction is separated and the hydrolase in the tracer removes the blocking group from the blocked fluoroketone. The fluoroketone activates or inhibits a second hydrolase which catalyzes the conversion of a substrate to a product. The presence or absence of the ligand in the liquid is indicated by a signal, such as a color change or a rate of color change, associated with the product. The invention includes a new class of hydrolase inhibitors and blocked fluoroketones and a kit of materials useful for performing the method of the invention.

  一种用于检测液体样品中可能存在的配体的酶免疫测定方法，包括使用至少两种水解酶和一个被阻断的氟酮来进行信号放大，其中一个水解酶使用被阻断的氟酮。液体中存在的配体与抗配体和标记有水解酶的示踪剂结合。分离所得的结合分数，并且示踪剂中的水解酶去除被阻断氟酮中的阻断基团。氟酮激活或抑制第二种水解酶，该水解酶催化底物转化为产物。与产物相关的信号，如颜色变化或颜色变化速率，指示液体中配体的存在或不存在。该发明包括一类新的水解酶抑制剂和被阻断的氟酮，以及用于执行该发明方法的材料套件。
• Signal enhancement in immunoassay by inhibition of enzymatic catalysis
  申请人：Becton Dickinson and Company

  公开号：EP0271731A2

  公开（公告）日：1988-06-22

  A method for enzyme immunoassay for a ligand suspected to be present in a liquid sample includes signal amplification by use of at least two enzymes and a blocked modulator for one of the enzymes. Ligand present in the liquid binds to an antiligand and an enzyme-labeled tracer. The resulting bound fraction is separated and the enzyme in the tracer removes the blocking group from the blocked modulator. The modulator activates or inhibits a second enzyme which catalyzes the conversion of a substrate to a product. The presence or absence of the ligand in the liquid is indicated by a signal, such as a color change or a rate of color change, associated with the product. The invention includes a new class of enzyme inhibitors and blocked inhibitors and a kit of materials useful for performing the method of the invention.

  一种对怀疑存在于液体样品中的配体进行酶免疫测定的方法，包括使用至少两种酶和其中一种酶的阻断调节剂进行信号放大。 液体中存在的配体与抗配体和酶标记的示踪剂结合。 由此产生的结合部分被分离，示踪剂中的酶从阻断调节剂中去除阻断基团。 调节剂激活或抑制第二种酶，该酶催化底物向产物的转化。 液体中配体的存在与否通过与产物相关的信号（如颜色变化或颜色变化率）来指示。 本发明包括一类新的酶抑制剂和阻断抑制剂，以及一套用于实施本发明方法的材料。
• Fluoroketones as blocked enzyme inhibitors for use in immunoassays
  申请人：Becton Dickinson and Company

  公开号：EP0501526A2

  公开（公告）日：1992-09-02

  A method for enzyme immunoassay for a ligand suspected to be present in a liquid sample includes signal amplification by use of at least two enzymes and a blocked modulator for one of the enzymes. Ligand present in the liquid binds to an antiligand and an enzyme-labeled tracer. The resulting bound fraction is separated and the enzyme in the tracer removes the blocking group from the blocked modulator. The modulator activates or inhibits a second enzyme which catalyzes the conversion of a substrate to a product. The presence or absence of the ligand in the liquid is indicated by a signal, such as a color change or a rate of color change, associated with the product. The invention includes a new class of enzyme inhibitors and blocked inhibitors and a kit of materials useful for performing the method of the invention.

  一种对液体样品中疑似存在的配体进行酶免疫测定的方法，包括使用至少两种酶和其中一种酶的阻断调节剂进行信号放大。液体中的配体与抗配体和酶标记的示踪剂结合。由此产生的结合部分被分离，示踪剂中的酶从阻断调制剂中去除阻断基团。调制剂激活或抑制第二种酶，该酶催化底物向产物的转化。液体中配体的存在与否可通过与产物相关的信号（如颜色变化或颜色变化率）来显示。本发明包括一类新的酶抑制剂和阻断抑制剂，以及用于实施本发明方法的材料试剂盒。