(R)-3',4'-dihydroxymandelic acid | 64998-15-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: (R)-3',4'-dihydroxymandelic acid
• 英文别名: DOMA；3,4-Dihydroxymandelic acid, (R)-；(2R)-2-(3,4-dihydroxyphenyl)-2-hydroxyacetic acid
• CAS: 64998-15-8
• 化学式: C₈H₈O₅
• 分子量: 184.149
• InChiKey: RGHMISIYKIHAJW-SSDOTTSWSA-N

物化性质

• 沸点：
  487.5±40.0 °C(Predicted)
• 密度：
  1.644±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -0.6
• 重原子数：
  13
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  98
• 氢给体数：
  4
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  去甲肾上腺素 在 monoamine oxidase in lung of rat Krebs solution 作用下， 生成 (R)-3',4'-dihydroxyphenylglycol 、 (R)-3',4'-dihydroxymandelic acid
  参考文献：
  名称：

  A kinetic investigation of the pulmonary metabolism of dopamine in rats shows marked differences compared with noradrenaline

  摘要：

  The aim of this study was to investigate the deamination of dopamine in the intact pulmonary circulation of isolated lungs of the rat. The first part of the study showed that dopamine is not converted to noradrenaline by dopamine-beta-hydroxylase (DBH) when dopamine is perfused through isolated lung preparations with monoamine oxidase (MAO) and catechol-O-methyltransferase (COMT) inhibited. Hence, it was not necessary to inhibit DBH in subsequent experiments. The metabolite profile for deamination of dopamine in the lungs was examined by determining whether MAO and semicarbazide-sensitive amine oxidases (SSAO) contribute to the deamination of dopamine (and noradrenaline), and by determining the activity of MAO (kMAO) for the metabolism of dopamine. Lungs were perfused with 1 nmol/l 3H-dopamine or 3H-noradrenaline with COMT inhibited and, in experiments to determine the contribution of SSAO to deamination, with MAO inhibited. Inhibition of MAO reduced the deamination of dopamine and noradrenaline by 99.8% and 98.6%, respectively, indicating that MAO, and not SSAO, was responsible for deamination of the catecholamines in the lungs. The kMAO value for deamination of dopamine was 3.89 min-1. Further experiments were carried out to determine the contributions of MAO-A and MAO-B to the deamination of dopamine in lungs perfused with 1 nmol/l 3H-dopamine and 100 nmol/l lazabemide or 300 nmol/l Ro41-1049, respectively.(ABSTRACT TRUNCATED AT 250 WORDS)

  DOI：

  10.1007/bf00171040

文献信息

• [EN] IONIC LIQUID SOLVENTS<br/>[FR] SOLVANTS LIQUIDES IONIQUES
  申请人：UNIV DUBLIN CITY

  公开号：WO2010097412A1

  公开（公告）日：2010-09-02

  A chiral ionic compound comprising an alkyl substituted imidazolium or pyridinium cationic core having an alkyl ester side chain (-alkyl-C(O)O-) directly linked to the core and an associated counter anion, characterized in that the -O- atom of the ester side chain is linked to an alpha, a beta or a gamma hydroxycarboxylic acid functionality via the alpha, beta or gamma hydroxy of the acid functionality and the hydroxycarboxylic acid functionality has at least one asymmetric carbon, or characterized in that an -N= atom of the alkyl substituted imidazolium or pyridinium cationic core is substituted with an alpha, a beta or a gamma hydroxy group of a alpha, a beta or a gamma hydroxycarboxylic acid functionality and the hydroxycarboxylic acid functionality has at least one asymmetric carbon. The chiral ionic liquids (CILs) may be used as novel solvents, in particular for organic synthesis. The CILs have the potential to induce asymmetry into substrates or catalysts in a variety of organic transformations. A number of the compounds have low antimicrobial and low antifungal toxicities and are also biodegradable CILs.

  一种手性离子化合物，包括具有烷基取代的咪唑或吡啶阳离子核心，其具有直接连接到核心的烷基酯侧链（-烷基-C（O）O-）和相关的对应阴离子，其特征在于酯侧链的-O-原子通过α、β或γ羟基羧酸功能与羧酸功能的α、β或γ羟基相连，且羟基羧酸功能具有至少一个不对称碳，或者其特征在于烷基取代的咪唑或吡啶阳离子核心的-N=原子被α、β或γ羟基羧酸功能的α、β或γ羟基取代，且羟基羧酸功能具有至少一个不对称碳。这种手性离子液体（CILs）可用作新型溶剂，特别适用于有机合成。这些CILs有潜力在各种有机转化中向底物或催化剂引入不对称性。其中一些化合物具有低抗菌和低抗真菌毒性，并且也是可生物降解的CILs。
• PROCESS FOR STRAIGHTENING KERATIN FIBRES WITH A HEATING MEANS AND DENATURING AGENTS
  申请人：Philippe Michel

  公开号：US20100028280A1

  公开（公告）日：2010-02-04

  The invention relates to a process for straightening keratin fibres, comprising: (i) a step in which a straightening composition containing at least two denaturing agents is applied to the keratin fibres, (ii) a step in which the temperature of the keratin fibres is raised, using a heating means, to a temperature of between 110 and 250° C.

  该发明涉及一种直发角蛋白纤维的拉直过程，包括：(i)将至少两种变性剂含有的拉直组合物涂抹到角蛋白纤维上的步骤，(ii)使用加热装置将角蛋白纤维的温度升高至110至250°C的步骤。
• Novel sulfonyldiazomethanes, photoacid generators, resist compositions, and patterning process
  申请人：——

  公开号：US20040167322A1

  公开（公告）日：2004-08-26

  A chemical amplification type resist composition comprising a specific benzenesulfonyldiazomethane containing a long-chain alkoxyl group at the 2-position on benzene ring has many advantages including improved resolution, improved focus latitude, minimized line width variation or shape degradation even on long-term PED, minimized debris left after coating, development and peeling, and improved pattern profile after development and is thus suited for microfabrication.

  一种化学放大型抗蚀组合物，包括在苯环上的2-位含有长链烷氧基基团的特定苯磺酰二氮甲烷，具有许多优点，包括提高分辨率，改善焦点宽度，即使在长期PED上也减少线宽变化或形状退化，涂层、显影和剥离后减少残留物，并在显影后改善图案轮廓，因此适用于微加工。
• Photoacid generators, chemically amplified resist compositions, and patterning process
  申请人：Ohsawa Youichi

  公开号：US20070292768A1

  公开（公告）日：2007-12-20

  A photoacid generator has formula (1). A chemically amplified resist composition comprising the photoacid generator has advantages including a high resolution, focus latitude, long-term PED dimensional stability, and a satisfactory pattern profile shape. When the photoacid generator is combined with a resin having acid labile groups other than those of the acetal type, resolution and top loss are improved. The composition is suited for deep UV lithography.

  一种光酸发生剂的化学式为（1）。包括该光酸发生剂的化学增感抗蚀组合物具有诸如高分辨率、焦点宽度、长期PED尺寸稳定性和令人满意的图案轮廓形状等优点。当该光酸发生剂与具有除了缩醛类型以外的酸敏感基团的树脂结合时，可以改善分辨率和顶部损失。该组合物适用于深紫外光刻。
• NOVEL PHOTOACID GENERATOR, RESIST COMPOSITION, AND PATTERNING PROCESS
  申请人：Ohsawa Youichi

  公开号：US20090246694A1

  公开（公告）日：2009-10-01

  Photoacid generators generate sulfonic acids of formula ( 1 a) upon exposure to high-energy radiation. ROC(═O)R 1 —COOCH 2 CF 2 SO 3 − H + (1a) RO is OH or C 1 -C 20 organoxy, R 1 is a divalent C 1 -C 20 aliphatic group or forms a cyclic structure with RO. The photoacid generators are compatible with resins and can control acid diffusion and are thus suited for use in chemically amplified resist compositions.

  光酸发生剂在高能辐射作用下生成式（1a）的磺酸。 ROC(═O)R1—COOCH2CF2SO3−H+(1a) RO为OH或C1-C20有机氧基，R1为二价的C1-C20脂肪族基团或与RO形成环状结构。这些光酸发生剂与树脂相容，可以控制酸的扩散，因此适用于化学增感抗蚀组合物的使用。