(2S,3S)-methyl 3-acetoxy-2-bromo-3-phenylpropanoate | 145987-12-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (2S,3S)-methyl 3-acetoxy-2-bromo-3-phenylpropanoate
• 英文别名: (+)-methyl (2S,3S)-3-acetoxy-2-bromo-3-phenylpropanoate；methyl (2S,3S)-3-acetyloxy-2-bromo-3-phenylpropanoate
• CAS: 145987-12-8
• 化学式: C₁₂H₁₃BrO₄
• 分子量: 301.137
• InChiKey: IJZONZZXYSOKOR-QWRGUYRKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  17
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (2S,3S)-methyl 3-acetoxy-2-bromo-3-phenylpropanoate 在 sodium methylate 作用下， 以 甲醇 、 二甲基亚砜 为溶剂， 生成 (E)-2-溴-3-苯基丙烯酸甲酯
  参考文献：
  名称：

  二甲基亚砜在羰基化合物的α-质子磁共振中引起的溶剂转移

  摘要：

  已经确定了四氯化碳和二甲基亚砜中许多羰基化合物的α和β质子共振的化学位移。溶剂变化对α-质子共振的影响的大小似乎直接随其不稳定性而变化。

  DOI：

  10.1016/0040-4020(80)80082-2
• 作为产物：
  描述：

  methyl 2-bromo-3-hydroxy-3-phenylpropanoate 在 4-二甲氨基吡啶 、 phosphate buffer 、 lipase AS Amano 作用下， 以 二氯甲烷 、 甲苯 为溶剂， 反应 60.0h， 生成 (2S,3S)-methyl 3-acetoxy-2-bromo-3-phenylpropanoate
  参考文献：
  名称：

  Chemoenzymatic approach to optically active phenylglycidates: resolution of bromo- and iodohydrins

  摘要：

  Enantiomerically enriched phenylglycidates, precursors of the taxol C-13 phenylisoserine side chain and diltiazem. were prepared by kinetic resolution of anti-2-bromo-3-hydroxy- and anti-3-hydroxy-2-iodophenylpropanoates to provide enantioriched (2R,3R)- and (2S,3S)-halohydrins. The bulkiness and inflexibility of bromo and iodo groups in halohydrins have made them inaccessible to the active site of most of the lipases utilized for the hydrolysis of their acyloxy derivatives. In a set of 22 hydrolases screened herein, including native as well as commercial enzymes, only Aspergillus niger (Lipase AS, AMANO) could catalyze the hydrolysis with high enantioselectivity (E = 176). The resolved halohydrins easily underwent transformation to the corresponding (2S,3R)- and (2R,3S)phenylglycidates. (C) 26 E'lsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2004.08.026

文献信息

• Route exploration and synthesis of the reported pyridone-based PDI inhibitor STK076545
  作者：Eric Greve、Sergey V. Lindeman、Christina Scartelli、Lin Lin、Robert Flaumenhaft、Chris Dockendorff

  DOI：10.1039/d0ob01205j

  日期：——

  confirm its activity and support further biological studies, a resynthesis was pursued of the reported β-keto-amide with an N-alkylated pyridone at the α-position. Numerous conventional approaches were complicated by undesired fragmentations or rearrangements. However, a successful 5-step synthetic route was achieved using an aldol reaction with an α-pyridone allyl ester as a key step. An X-ray crystal

  酶蛋白二硫键异构酶 (PDI) 对于蛋白质的正确折叠和某些细胞表面受体的激活至关重要，并且是治疗癌症和血栓性疾病的有希望的靶标。先前的高通量筛选将商业化合物 STK076545 确定为有前途的 PDI 抑制剂。为了证实其活性并支持进一步的生物学研究，对报道的 β-酮酰胺与Nα-位烷基化吡啶酮。许多传统方法因不希望的碎片或重排而变得复杂。然而，使用与 α-吡啶酮烯丙酯的羟醛反应作为关键步骤，成功实现了 5 步合成路线。最终化合物的 X 射线晶体结构证实了所报告的 STK076545 结构，但其缺乏 PDI 活性和不一致的光谱数据表明商业结构被错误分配。
• A simple and facile method for regio- and stereoselective bromoformyloxylation and bromoacetoxylation of olefins using NH4Br and oxone®
  作者：Mameda Naresh、Peraka Swamy、Macharla Arun Kumar、Marri Mahender Reddy、Kodumuri Srujana、Nama Narender

  DOI：10.1016/j.tetlet.2014.04.103

  日期：2014.7

  temperature is described. This method is facile, environmentally friendly and cost effective. A variety of terminal, internal and cyclic alkenes reacted smoothly to give the corresponding bromoformate and acetate products in good to excellent yields. Moreover, 1,2-disubstituted olefins provided moderate to excellent diastereoselectivity.

  描述了在室温下不使用催化剂的情况下，在亲核源（DMF或DMA）中使用NH 4 Br和oxone®从烯烃制备溴甲酸酯和溴乙酸酯的温和有效方案。该方法简便，环保且具有成本效益。各种末端，内部和环状烯烃均能平稳反应，以高至极好的收率得到相应的溴甲酸酯和乙酸酯产物。而且，1,2-二取代的烯烃提供了中等至优异的非对映选择性。
• Stereoselective chemoenzymatic process for the preparation of optically enriched phenylglycidates as precursors of taxol side chain
  申请人：COUNCIL OF SCIENTIFIC AND INDUSTRIAL

  公开号：US20040259943A1

  公开（公告）日：2004-12-23

  The present invention relates to a novel and efficient chemoenzymatic process of preparation of optically active trans alkyl phenylglycidates. The invention particularly discloses a novel process for the chemoenzymatic synthesis of two enantiomers of trans alkyl phenylglycidate i.e. alkyl(2S,3R)-phenylglycidate and alkyl(2R,3S)-phenylglycidate of formulae 7 and 8 respectively. 1

  本发明涉及一种新颖有效的化学酶法制备光学活性反式烷基苯基乙二酸酯的方法。该发明特别揭示了一种新的化学酶法合成反式烷基苯基乙二酸酯的两个对映异构体，即式7和式8的烷基(2S,3R)-苯基乙二酸酯和烷基(2R,3S)-苯基乙二酸酯。
• A simplified procedure for the stereospecific transformation of 1,2-diols into epoxides
  作者：Hartmuth C. Kolb、K.Barry Sharpless

  DOI：10.1016/s0040-4020(01)88349-6

  日期：1992.11

  of vicinal diols into epoxides via halohydrin ester intermediates has been developed. This method tolerates a wide range of functionality including acid sensitive functional groups. The transformation proceeds via a, usually highly regioselective, nucleophilic opening of a cyclic acetoxonium intermediate, generated from a cyclic orthoacetate and Me3SiCl, acetyl bromide or acetyl chloride/NaI to form

  已经开发出一种简单的“一锅法”程序，用于通过卤代醇酯中间体将邻位二醇转化为环氧化物。该方法可耐受包括酸敏感性官能团在内的多种官能团。变换进行经由环状acetoxonium中间的一个，通常是高度选择性，亲核开口，由环状原乙酸酯和Me产生3用SiCl，乙酰溴或乙酰氯/ NaI分别形成1-乙酰氧基-2-氯化物，1-乙酰氧基-2-溴化物或1-乙酰氧基-2-碘化物中间体。即使有苄基底物也不会发生差向异构。随后的碱介导的甲醇分解以优异的总收率提供了环氧化物。从3- [2-（8-苯基辛基）苯基]丙酸甲酯的高度对映选择性顺式-二羟基化开始，该方法的应用导致白三烯拮抗剂SKF 104353的有效形式合成。
• Synthesis of Taxoids I. Regioselective Lewis Acid-mediated Ring-opening of Aryl Orthoacetates
  作者：Tomiki Hashiyama、Naoyuki Harada、Kunihiko Ozaki、Tetsuo Yamaguchi、Akira Ando、Kenji Tsujihara

  DOI：10.3987/com-96-s20

  日期：——