N,N-dimethylglycine tert-butyl ester | 56503-06-1

• 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,N-dimethylglycine tert-butyl ester
• 英文别名: N,N-Dimethyl-glycin-tert-butylester；Dimethylamino-essigsaeure-tert.-butylester；2-Methyl-2-propanyl N,N-dimethylglycinate；tert-butyl 2-(dimethylamino)acetate
• CAS: 56503-06-1
• 化学式: C₈H₁₇NO₂
• 分子量: 159.228
• InChiKey: ROIWAMOFUAFMRY-UHFFFAOYSA-N

物化性质

• 沸点：
  176.6±23.0 °C(Predicted)
• 密度：
  0.929±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  11
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.875
• 拓扑面积：
  29.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  N,N-dimethylglycine tert-butyl ester 在 sodium methoxide-d3 作用下， 以 氘代甲醇 为溶剂， 生成
  参考文献：
  名称：

  A new and efficient route to 3-amino-2-azetidinones via zinc enolates of N,N-disubstituted glycine esters

  摘要：

  This report describes novel and efficient ''one-pot'' syntheses of 1-unsubstituted-3-amino-4-substituted-2-azetidinones (8 and 9) involving the in situ preparation of lithium and particularly zinc enolates (5 and 6, respectively) of N,N-disubstituted glycine esters (4) and subsequent reactions of these enolates with (simple) imines (7). Lithium enolates 5 only react with activated imines that are N-substituted with an electron-withdrawing group (e.g. aryl, trialkylsilyl), affording cis-3-amino-2-azetidinones in excellent yields with moderate to good stereoselectivity (de 68-92%). Zinc enolates 6 are more generally applicable since they react with activated imines as well as unactivated imines (e.g. those which are N-substituted with an electron-donating group such as alkyl) to afford 3-amino-2-azetidinones in excellent yields. The trans diastereoselectivity of the zinc-mediated enolate-imine condensation can be tuned by changing the steric and electronic properties of the substituents of the reagents (i.e. both enolate and imine), as well as the solvent polarity. The observed stereoselectivities are explained in terms of two highly ordered transition states, consisting of a Z-zinc ester enolate and an E-imine. Protection of the amino function of the metal enolates as a 2,2,5,5-tetramethyl-1-aza-2,5-disilacyclopentane ring affords 2-azetidinone products that can be easily deprotected to provide a free 3-amino function. In this way, trans-1-benzyl-3-(protected amino)-4-methyl-2-azetidinone (9a) and trans-3-(protected amino)-4-[(trimethylsilyl)ethynyl]-2-azetidinone (9g), key intermediates in the synthesis of Aztreonam (and 9g for bicyclic beta-lactam antibiotics as well), have been prepared in excellent yields (98 and 93%, respectively) with a high diastereoselectivity (de 82 and 94%, respectively). Furthermore, depending on the reactivity of imines 7, our method is also applicable using a catalytic amount (10 mol %) of ZnCl2.

  DOI：

  10.1021/jo00017a030
• 作为产物：
  描述：

  溴乙酸叔丁酯 、 二甲胺 在 potassium carbonate 作用下， 以 乙腈 为溶剂， 以56%的产率得到N,N-dimethylglycine tert-butyl ester
  参考文献：
  名称：

  串联催化烯丙基胺化和叔胺的 [2,3]-Stevens 重排

  摘要：

  我们开发了涉及叔氨基酯和烯丙基碳酸酯的催化烯丙基胺化，这是在金属催化烯丙基取代化学中使用叔胺作为分子间亲核试剂的第一个例子。该过程用于串联铵叶立德生成/[2,3]-重排反应，其形式上代表钯催化的史蒂文斯重排。低催化剂负载量和温和的反应条件与前所未有的叶立德铵功能底物范围相容，并且以高产率和非对映选择性生成产物。机理研究表明铵中间体的可逆形成。

  DOI：

  10.1021/ja204717b

文献信息

• Synthese potentieller Cholinesterasereaktivatoren und -protektoren Aliphatische Bis-Ammonium-ketoxime
  作者：R. Reiner、A. Scherer、M. Schmidt、G. Zimmer

  DOI：10.1002/ardp.19713040905

  日期：——

  Durch Umsatz von Dimethylaminoaceton oder dessen Oxim mit Ammoniumalkylhalogeniden („Halbsalzen”︁) wurden ausgewählte symmetrische und unsymmetrische Bisammoniumacetonyloxime dargestellt, die in enger struktureller Verwandtschaft zu den Bispyridiniumaldoximen stehen. Diese Verbindungen sind nicht nur als Reaktivatoren phosporylierter Acetylcholinesterase, sondern als Präventivmedikamente gegen Pho

  通过将二甲氨基丙酮或其肟与烷基卤化物（“半盐”︁）反应，产生了与双吡啶鎓醛肟在结构上密切相关的对称和不对称双铵乙肟。这些化合物不仅可作为磷酸化乙酰胆碱酯酶的再活化剂，而且还可作为预防磷酯中毒的药物。
• DIARYLETHER DERIVATIVES AS ANTITUMOR AGENTS
  申请人：Matsuyama Hironori

  公开号：US20100004438A1

  公开（公告）日：2010-01-07

  An object of the present invention is to provide a medicinal drug much improved in anti tumor activity and excellent in safety. According to the present invention, there is provided a medicinal drug containing a compound represented by the following general formula (1) or a salt thereof as an active ingredient: [Formula 1] wherein X 1 represents a nitrogen atom or a group —CH═, R 1 represents a group -Z-R 6 , in which Z represents a group —CO—, a group —CH(OH)— or the like, R 6 represents a 5- to 15-membered monocyclic, dicyclic or tricyclic saturated or unsaturated heterocyclic group having 1 to 4 nitrogen atoms, oxygen atoms or sulfur atoms, R 2 represents a hydrogen atom or a halogen atom, Y represents a group —O—, a group —CO—, a group —CH(OH)— or a lower alkylene group, and A represents [Formula 2] wherein R 3 represents a hydrogen atom, a lower alkoxy group or the like, p represents 1 or 2, R 4 represents an imidazolyl lower alkyl group or the like.

  本发明的一个目的是提供一种在抗肿瘤活性方面大大改进且安全性优异的药物。根据本发明，提供了一种包含以下一般式（1）所表示的化合物或其盐作为活性成分的药物：[式1]其中X1代表氮原子或基团—CH═，R1代表一个基团-Z-R6，其中Z代表基团—CO—，基团—CH(OH)—或类似的基团，R6代表一个含有1至4个氮原子、氧原子或硫原子的5至15个成员的单环、双环或三环饱和或不饱和杂环基团，R2代表氢原子或卤原子，Y代表基团—O—，基团—CO—，基团—CH(OH)—或低碳烷基基团，A代表[式2]其中R3代表氢原子、低碳氧基基团或类似基团，p代表1或2，R4代表咪唑基低碳基团或类似基团。
• 一种麦角硫因的合成方法
  申请人：上海克琴科技有限公司

  公开号：CN111574458B

  公开（公告）日：2023-04-07

  本发明提供了一种麦角硫因的合成方法及中间体。该方法通过手性催化的方式引入手性，反应中间体都可溶于有机溶剂，能够以较低的成本方便的得到高纯度的麦角硫因，反应条件温和，易于控制且对环境污染很小，能更好的适应工业化生产。
• Zwitterionic tachykinin receptor antagonists
  申请人：——

  公开号：US20020042431A1

  公开（公告）日：2002-04-11

  The present invention is directed to certain novel compounds represented by structural formula I: 1 or a pharmaceutically acceptable salt thereof, wherein R 3 , R 5 , R 6 , R 7 , R 8 , R 11 , R 12 R 13 , Q, W, X, Y and Z are defined herein. The invention is also concerned with pharmaceutical formulations comprising these novel compounds as active ingredients and the use of the novel compounds and their formulations in the treatment of certain disorders. The compounds of this invention are tachykinin receptor antagonists and are useful in the treatment of psychiatric disorders including depression and anxiety.

  本发明涉及由结构式I：1所代表的某些新化合物或其药用可接受的盐，其中R3、R5、R6、R7、R8、R11、R12、R13、Q、W、X、Y和Z在此定义。该发明还涉及含有这些新化合物作为活性成分的药物配方，以及该新化合物及其配方在治疗某些疾病中的用途。本发明的化合物是催吐肽受体拮抗剂，可用于治疗包括抑郁症和焦虑症在内的精神障碍。
• Aromatic Compounds
  申请人：Fukushima Tae

  公开号：US20070270422A1

  公开（公告）日：2007-11-22

  The present invention provides a novel compound, which has an excellent effect of suppressing the generation of collagen and less side effects, with being excellent in terms of safety. The compound of the present invention is represented by the following general formula (1): [wherein X 1 represents a nitrogen atom or a group —CH═; R 1 represents a group -Z-R 6 , wherein Z represents a group —CO—, a group —CH(OH)—, or the like, and R 6 represents a 5- to 15-membered monocyclic, dicyclic, or tricyclic, saturated or unsaturated heterocyclic group having 1 to 4 nitrogen atoms, oxygen atoms, or sulfur atoms; R 2 represents a hydrogen atom, a halogen atom or a lower alkylene group; Y represents a group —O—, a group —CO—, a group —CH(OH)—, a lower alkylene group, or the like; and A represents a group or the like, wherein R 3 represents a hydrogen atom, a lower alkoxy group, or the like, p represents 1 or 2, and R 4 represents an imidazolyl lower alkyl group or the like.

  本发明提供了一种新型化合物，具有抑制胶原生成的优异效果，并且具有较少的副作用，在安全性方面表现出色。本发明的化合物由以下通式（1）表示：[其中X1代表氮原子或基团—CH═；R1代表基团-Z-R6，其中Z代表基团—CO—、基团—CH(OH)—或类似基团，而R6代表具有1到4个氮原子、氧原子或硫原子的5-到15元的单环、双环或三环、饱和或不饱和杂环基团；R2代表氢原子、卤素原子或低碳链基团；Y代表基团—O—、基团—CO—、基团—CH(OH)—、低碳链基团或类似基团；A代表基团或类似基团，其中R3代表氢原子、低碳醚基团或类似基团，p代表1或2，而R4代表咪唑基低碳基团或类似基团。