N-(trifluoroacetyl)-D-alanine | 7592-26-9

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: N-(trifluoroacetyl)-D-alanine
• 英文别名: (R)-N-trifluoroacetylalanine；(R)-2-(2,2,2-trifluoroacetamido)propanoic acid；TFA-D-Ala；N-(trifluoroacetyl)alanine；(R)-N-trifluoroacetyl-2-aminopropionic acid；N-Trifluoracetyl-D-alanin；D-Alanine, N-(2,2,2-trifluoroacetyl)-；(2R)-2-[(2,2,2-trifluoroacetyl)amino]propanoic acid
• CAS: 7592-26-9
• 化学式: C₅H₆F₃NO₃
• 分子量: 185.103
• InChiKey: WLVJROFMCNWTBX-UWTATZPHSA-N

物化性质

• 熔点：
  66-68 °C
• 沸点：
  287.3±40.0 °C(Predicted)
• 密度：
  1.441±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.7
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  66.4
• 氢给体数：
  2
• 氢受体数：
  6

安全信息

• 储存条件：
  2-8°C

反应信息

• 作为反应物：
  描述：

  N-(trifluoroacetyl)-D-alanine 在 吡啶 、 草酰氯 、 四氯化钛 作用下， 以 二氯甲烷 为溶剂， 反应 62.0h， 生成 R-(+)-2-[N-(trifluoroacetyl)amino]-1-(2,5-dimethoxy-4-bromophenyl)-1-propanone
  参考文献：
  名称：

  β-Oxygenated Analogues of the 5-HT_2A Serotonin Receptor Agonist 1-(4-Bromo-2,5-dimethoxyphenyl)-2-aminopropane

  摘要：

  Activation of 5-HT2A serotonin receptors represents a novel approach to lowering intraocular pressure. Because 5-HT2A serotonin receptor agonists might also produce undesirable central effects should sufficient quantities enter the brain, attempts were made to identify 5-HT2A serotonin receptor agonists with reduced propensity to penetrate the blood-brain barrier. 1-(4Bromo-2,5-dimethoxyphenyl)-2-aminopropan-1-oI (6), an analogue of the 5-HT2A serotonin receptor agonist 1-(4-bromo-2,5-dimethoxyphenyl)-2-aminopropane (DOB; 1a) bearing a benzylic hydroxyl group, was identified as a candidate structure. Of the four optical isomers of 6, the 1R,2R-isomer (6d; K-i = 0.5 nM) was found to bind at 5-HT2A receptors with an affinity similar to that of R(-)DOB (Ki = 0.2 nM). Like R(-)DOB, 6d behaved as a partial agonist (efficacy ca. 50%) in a 5-HT2-mediated calcium mobilization assay. However, in an in vivo test of central action (i.e., stimulus generalization with rats as subjects), 6d was > 15 times less potent than R(-)DOB. O-Methylation of 6d (i.e., 7d; 5-HT2A K-i = 0.3 nM) resulted in an agent that behaved as a full (93% efficacy) agonist. Intraocular administration of 300,mug of 6d and 7d to ocular hypertensive monkeys was shown to reduce intraocular pressure by 20-27%. Given the route of administration (i.e., topical), and concentrations necessary to reduce intraocular pressure, compounds such as 6d should demonstrate minimal central effects at potentially useful therapeutic doses and offer useful leads for further development.

  DOI：

  10.1021/jm040082s
• 作为产物：
  描述：

  D-丙氨酸 生成 N-(trifluoroacetyl)-D-alanine
  参考文献：
  名称：

  OI, NAOBUMI;KITAHARA, HAJIMU;MATSUSHITA, YASUHIRO, J. HIGH RESOLUT. CHROMATOGR., 13,(1990) N0, C. 720-724

  摘要：

  DOI：

文献信息

• [EN] SYNTHESIS OF OPTICALLY PURE (R)-5-(2-AMINOPROPYL)-2-METHOXYBENZENESULPHONAMIDE<br/>[FR] SYNTHESE DE (R)-5-(2-AMINOPROPYL)-2-METHOXYBENZENOSULFONAMIDE OPTIQUEMENT PUR
  申请人：LEK PHARMACEUTICALS

  公开号：WO2005063701A1

  公开（公告）日：2005-07-14

  The present invention relates to a new process for the preparation of optically pure (R)-5-(2-aminopropyl)-2-methoxybenzenesulphonamide, which is an intermediate in the synthesis of tamsulosin.

  本发明涉及一种制备光学纯(R)-5-(2-氨丙基)-2-甲氧基苯磺胺的新工艺，该化合物是特拉唑嗪合成中的中间体。
• Synthesis of Chiral TFA-Protected α-Amino Aryl-Ketone Derivatives with Friedel–Crafts Acylation of α-Amino Acid N-Hydroxysuccinimide Ester
  作者：Zetryana Tachrim、Kazuhiro Oida、Haruka Ikemoto、Fumina Ohashi、Natsumi Kurokawa、Kento Hayashi、Mami Shikanai、Yasuko Sakihama、Yasuyuki Hashidoko、Makoto Hashimoto

  DOI：10.3390/molecules22101748

  日期：——

  Chiral N-protected α-amino aryl-ketones are one of the useful precursors used in the synthesis of various biologically active compounds and can be constructed via Friedel-Crafts acylation of N-protected α-amino acids. One of the drawbacks of this reaction is the utilization of toxic, corrosive and moisture-sensitive acylating reagents. In peptide construction via amide bond formation, N-hydroxysuccinimide

  手性N-保护的α-氨基芳基酮是用于合成各种生物活性化合物的有用前体之一，并且可以通过N-保护的α-氨基酸的Friedel-Crafts酰化反应来构建。该反应的缺点之一是使用有毒，腐蚀性和对湿气敏感的酰化试剂。在通过酰胺键形成的肽构建中，具有高存储稳定性的N-羟基琥珀酰亚胺酯（OSu）可以与氨基成分快速反应，并产生较少的副反应，包括消旋作用。这项研究报告了首次合成和利用N-三氟乙酰基（TFA）保护的α-氨基酸-OSu作为弗瑞德-克拉夫茨酰化成各种芳烃的潜在酰基供体。研究了TFA-保护的异亮氨酸衍生物及其非对映体TF​​A-保护的异亮氨酸衍生物，以检查Friedel-Crafts反应中α-质子手性的保留。OSu在其他支链和非支链氨基酸中的进一步利用可得到足够产率的TFA保护的α-氨基芳基酮，而不会损失光学纯度。
• Substituted Phenylpiperazinyl Aralkylalcohol Derivatives, Pharmaceutical Compositions Containing Such Derivatives and Uses Thereof
  申请人：Li Jianqi

  公开号：US20110294822A1

  公开（公告）日：2011-12-01

  The invention relates to a substituted phenylpiperazine aryl alkanol derivative represented by the following general formula and its salt and hydrate, wherein C 1 and C 2 represent chiral carbon atoms, and the compound is one of the six isomers: (1RS, 2SR), (1RS, 2RS), (1R, 2S), (1S, 2S), (1R, 2R) or (1S, 2R); and R, R 1 , R 2 , R 3 and Ar are as defined in the specification. The derivative is non-opioid analgesic, has good analgesic effect and relatively small side effects. The invention also relates to a composition comprising the derivative and its use.

  该发明涉及一种由以下通用公式表示的取代苯基哌嗪芳基烷醇衍生物及其盐和水合物，其中C1和C2代表手性碳原子，化合物是六种异构体之一：(1RS, 2SR)、(1RS, 2RS)、(1R, 2S)、(1S, 2S)、(1R, 2R)或(1S, 2R)；R、R1、R2、R3和Ar如规范中所定义。该衍生物是一种非阿片类镇痛药，具有良好的镇痛效果和相对较小的副作用。该发明还涉及包含该衍生物及其用途的组合物。
• Evidence and exploitation of dicationic ammonium–nitrilium superelectrophiles: direct synthesis of unsaturated piperidinones
  作者：Thomas Cantin、Yvonne Morgenstern、Agnès Mingot、Andreas Kornath、Sébastien Thibaudeau

  DOI：10.1039/d0cc02910f

  日期：——

  Exploiting superacid activation, the reactivity of aminonitriles was enhanced through the transient formation of highly reactive ammonium–nitrilium superelectrophiles.

  利用超酸激活，氨基腈的反应性通过瞬时形成高度活性的铵盐-腈盐超电亲电子体得到增强。
• Enantiospecific Synthesis and Pharmacological Evaluation of a Series of Super-Potent, Conformationally Restricted 5-HT_2A/2C Receptor Agonists
  作者：James J. Chambers、Deborah M. Kurrasch-Orbaugh、Matthew A. Parker、David E. Nichols

  DOI：10.1021/jm000491y

  日期：2001.3.1

  D- or L-alanyl chloride, followed by ketone reduction and N-deprotection. The enantiomers demonstrated modest stereoselectivity at the two receptors. Several general trends within these classes of new compounds were observed during their pharmacological investigation. For most pairs of optical isomers tested, the R-enantiomers of the compounds containing heterocycle 7 bound with only slightly higher

  配体对5-HT（2A）或5-HT（2C）激动剂结合位点的亲和力通过修饰典型的致幻性苯丙胺（如4b（DOB））中的2,5-氧取代基来增强。相对于母体2，5-二甲氧基化合物，构象柔性的2，5-二甲氧基取代基限制为稠合的二氢呋喃环通常导致效力增加。这些芳基烷基胺的纯对映体是通过对映体特异性合成得到的，该合成涉及用N-三氟乙酰基保护的D-或L-丙氨酰氯对杂环核7进行酰化，然后进行酮还原和N-脱保护。对映异构体在两个受体上显示适度的立体选择性。在它们的药理研究过程中，观察到了这些新化合物类别中的一些一般趋势。对于大多数测试的光学异构体对，在5-HT（2A）和5-HT（2C）受体上，含杂环7的化合物的R-对映体仅比其S-对映体具有更高的亲和力。同样，功能研究表明，与S-对映体相比，R-对映体通常显示出更高的效价。这些芳基烷基胺的二氢呋喃环的芳香化进一步增加了亲和力和效力。仅有少数化合物是完全激动剂，其