(1R)-1-methyl-2-{[(4-methylphenyl)sulfonyl]oxy}ethyl acetate | 155751-04-5

• 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: (1R)-1-methyl-2-{[(4-methylphenyl)sulfonyl]oxy}ethyl acetate
• 英文别名: (r)-2-Acetoxypropyl p-toluenesulfonate；[(2R)-1-(4-methylphenyl)sulfonyloxypropan-2-yl] acetate
• CAS: 155751-04-5
• 化学式: C₁₂H₁₆O₅S
• 分子量: 272.322
• InChiKey: JHQPDCMJHLSTTE-SNVBAGLBSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  18
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  78
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  乙酸乙烯酯 、 toluene-4-sulfonic acid 2-hydroxypropyl ester 在 三乙胺 作用下， 以 various solvent(s) 为溶剂， 生成 (2S)-1-{[(4-methylphenyl)sulfonyl]oxy}propan-2-yl acetate 、 (1R)-1-methyl-2-{[(4-methylphenyl)sulfonyl]oxy}ethyl acetate
  参考文献：
  名称：

  Amine assisted enzymatic esterification of 1,2-diol monotosylates

  摘要：

  The enzymatic esterification of 1,2-diol monotosylates in organic solvent under standard conditions often fails to achieve the desired 50% conversion due to enzyme inactivation by acidic contaminants. The inclusion of an amine affords rapid conversion to 50% and provides enhanced enantioselectivity.

  DOI：

  10.1016/s0957-4166(00)86160-1

文献信息

• 4,4-difluoro-1,2,3,4-tetrahydro-5h-1-benzazepine derivative or salt thereof
  申请人：Koshio Hiroyuki

  公开号：US20060122170A1

  公开（公告）日：2006-06-08

  A novel 4,4-difluoro-1,2,3,4-tetrahydro-5H-1-benzazepine derivative or a pharmaceutically acceptable salt thereof, which is useful as an agent for treating or preventing nocturia and/or diabetes insipidus, is provided.

  提供一种新型的4,4-二氟-1,2,3,4-四氢-5H-1-苯并嗪衍生物或其药学上可接受的盐，该衍生物可用作治疗或预防夜尿症和/或尿崩症的药物。
• 4,4-Difluoro-1,2,3,4-tetrahydro-5H-1-benzazepine derivative or salt thereof
  申请人：Koshio Hiroyuki

  公开号：US20070167429A1

  公开（公告）日：2007-07-19

  A novel 4,4-difluoro-1,2,3,4-tetrahydro-5H-1-benzazepine derivative or a pharmaceutically acceptable salt thereof, which is useful as an agent for treating or preventing nocturia and/or diabetes insipidus, is provided.

  提供了一种新型的4,4-二氟-1,2,3,4-四氢-5H-1-苯并氮杂环衍生物或其药学上可接受的盐，该衍生物在治疗或预防夜尿症和/或尿崩症方面有用。
• Enzymatic method of making 1,2-diol derivatives and their esters
  申请人：Hwang Ook Soon

  公开号：US20070026508A1

  公开（公告）日：2007-02-01

  The present invention relates to a new process for the preparation of optically active alcohols represented by the general formula 2 and their esters represented by the general formula 3 by enzymatic method from racemic alcohols represented by the general formula 1 in scheme 1. In more details, this invention relates to a process for producing optically active alcohols and their esters which are used as pharmaceutical intermediates from alcohols represented by the general formula 1 by stereospecific transesterification of secondary hydroxyl group using lipases as catalyst with acyl donors in organic solvent or with acyl donors only without using organic solvent. According to this invention, optically active alcohols and esters of high optical purity in high yield can be produced by transforming the primary hydroxyl group of 1,2-diols by tosyl group and transesterifying the secondary hydroxyl group stereospecifically by lipase.

  本发明涉及一种新的方法，通过酶法从通式1所表示的外消旋醇制备通式2所表示的光学活性醇及其酯，通式3。更详细地说，本发明涉及一种从通式1所表示的醇中，使用脂肪酶作为催化剂，通过立体特异性转酯化反应转化次级羟基，使用有机溶剂或仅使用酰基供体而不使用有机溶剂，生产用作制药中间体的光学活性醇及其酯的方法。根据本发明，通过将1,2-二醇的主要羟基转化为对甲苯磺酰基，并通过脂肪酶立体特异性地转酯化次级羟基，可以生产高产率的高光学纯度的光学活性醇和酯。
• 4,4-DIFLUORO-1,2,3,4-TETRAHYDRO-5H-1-BENZAZEPINE DERIVATIVE OR SALT THEREOF
  申请人：Astellas Pharma Inc.

  公开号：EP1619185B1

  公开（公告）日：2011-06-15
• US7183271B2
  申请人：——

  公开号：US7183271B2

  公开（公告）日：2007-02-27