rac-2-(N-tert-Butoxycarbonyl-N-benzylamino)-1-phenylethanol | 215391-96-1

• 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: rac-2-(N-tert-Butoxycarbonyl-N-benzylamino)-1-phenylethanol
• 英文别名: tert-butyl benzyl(2-hydroxy-2-phenylethyl)carbamate；tert-butyl N-benzyl-N-(2-hydroxy-2-phenylethyl)carbamate
• CAS: 215391-96-1
• 化学式: C₂₀H₂₅NO₃
• 分子量: 327.423
• InChiKey: KPJOWGPTMROYRW-UHFFFAOYSA-N

物化性质

• 沸点：
  471.7±44.0 °C(Predicted)
• 密度：
  1.125±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  24
• 可旋转键数：
  7
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.35
• 拓扑面积：
  49.8
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  rac-2-(N-tert-Butoxycarbonyl-N-benzylamino)-1-phenylethanol 在 硫酸 、 三氟乙酸 、 potassium carbonate 、 sodium chloride 作用下， 以 二氯甲烷 、 水 、 乙酸乙酯 为溶剂， 生成 4-苯基-1,2,3,4-四氢异喹啉盐酸盐
  参考文献：
  名称：

  基于Weinreb酰胺的合成等效物，可轻松获得4-芳基-1,2,3,4-四氢异喹啉

  摘要：

  新的合成的等同物，Ñ甲氧基Ñ甲基Ñ ' -苯磺酰基甘氨酰胺和Ñ甲氧基Ñ甲基Ñ ' -苄基- ñ ' -叔-butyloxy羰基于WA功能甘氨酰胺被用于的方便合成开发4-芳基-1,2,3,4-四氢异喹啉骨架。两个简单的反应，N-苄基化和芳基卤化镁在前者的WA功能上的加成提供了方便合成N的关键中间体-苯磺酰基通过还原和酸促进的环化作用来保护4-芳基-1,2,3,4-四氢异喹啉。对于后者，在WA官能团上添加卤化芳基镁，然后按照相同的方案，以良好的产率直接合成了4-芳基-1,2,3,4-四氢异喹啉。酸促进的环化步骤能够同时去除N -Boc保护。

  DOI：

  10.1016/j.tet.2010.03.074
• 作为产物：
  描述：

  N-苄基-1-苯基乙基胺 在 sodium tetrahydroborate 、 三乙胺 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 生成 rac-2-(N-tert-Butoxycarbonyl-N-benzylamino)-1-phenylethanol
  参考文献：
  名称：

  Enantioselective synthesis of β-hydroxy amines and aziridines using asymmetric transfer hydrogenation of α-amino ketones

  摘要：

  α-氨基酮的对映选择性转移氢化是一种有效的方法，用于手性合成β-羟基胺和氮丙啶。

  DOI：

  10.1039/b102895m

文献信息

• Synthesis and 2D QSAR of O-sulphonated β-aminols derivatives as novel antifungal and antibacterial agents
  作者：Sugandha Sharma、Atindra K. Pandey、Praveen K. Shukla、Anil K. Saxena

  DOI：10.1016/j.bmcl.2011.08.078

  日期：2011.11

  Synthesis of a series of beta-aminol derivatives using regioselective opening reaction catalyzed by SiO2 (60-120 mesh) and O-sulphonation in THF-KOH system, comprising tert-butoxycarbonyl at secondary nitrogen and evaluate for various stains of bacteria and fungi. SAR study of synthesized compound using backward regression analysis. (C) 2011 Elsevier Ltd. All rights reserved.
• Stereocontrol between Remote Atom Centers in Acyclic Substrates. Anti Addition of Hydride to 1,5-, 1,6-, and 1,7-Hydroxy Ketones
  作者：Han-Cheng Zhang、Bruce D. Harris、Michael J. Costanzo、Edward C. Lawson、Cynthia A. Maryanoff、Bruce E. Maryanoff

  DOI：10.1021/jo981341m

  日期：1998.10.1

  For conformationally unconstrained, acyclic organic compounds, the control of stereogenic centers at remote positions of a chain, that is, at a distance of four or more atom centers, remains a challenging problem in asymmetric synthesis. We report on our studies of 1,5, 1,6, and 1,7 diastereoselectivity in hydride reductions of acyclic hydroxy amino ketones and related compounds, which were sparked by our discovery of high 1,5 diastereocontrol (>10:1) with substrates such as 17 and 23. We have been able to achieve both high 1,5- and 1,6-anti diastereocontrol in the reduction of 1,5- and 1,6-hydroxy ketone substrates, respectively. However, the level of 1,7-anti diastereocontrol with 1,7-hydroxy ketones was only moderate. More specifically, reduction of 23 to 24 with R-alpine-hydride or Zn(BH4)(2) in CH2Cl2 (predominantly) at -78 degrees C gave high 1,5-anti stereoselectivity (anti/syn = 10:1 or 13:1, respectively), and reduction of 34 to 35 with R-alpine-hydride (CH2Cl2) gave high 1,6-anti selectivity (anti/syn = 12:1, respectively), whereas reduction of 46 to 44 with R-alpine-hydride (CH2Cl2) gave only moderate 1,7-anti stereoselectivity (anti/syn = 3:1). Results for reductions of 1,5- and 1,6-hydroxy ketone substrates having the N-benzyl structural subunit replaced (i.e., 27 --> 28, 29 --> 30, 31 --> 32, 52 --> 53, 54a --> 55a, 54b --> 55b, 54c --> 55c, and 56 --> 57) clearly indicate that the stereoelectronic character of this subunit plays a critical. role in the attainment of high anti asymmetric induction. Thus, while we obtained exceptionally high 1,6-anti stereoselectivity in the reduction of the N-mesitylmethyl substrate, 54c, to 1,6-diols 55c (anti/syn = 22:1) with R-alpine-hydride at -78 degrees C in CH2Cl2, the N-methyl substrate, 54b, gave a relatively modest anti/syn ratio of 3:1. The diminished anti/syn ratio of 4:1 in the R-alpine-hydride reduction of methoxy amino ketone 50 to 51 also indicates the importance of the free hydroxyl group for attaining high 1,6-anti stereoselectivity. To rationalize the high remote anti stereocontrol in such acyclic systems, we discuss a chelation-controlled mechanism, involving external hydride addition to a bicyclic metal complex with a coordinated ketone carbonyl (e.g., 33) vs internal hydride addition to a monocyclic metal complex with an uncoordinated ketone carbonyl (e.g., 58).
• Identification of Novel 2-((1-(Benzyl(2-hydroxy-2-phenylethyl)amino)-1-oxo-3-phenylpropan-2-yl)carbamoyl)benzoic Acid Analogues as BMP-2 Stimulators
  作者：Vishal M. Balaramnavar、Imran A. Khan、Jawed Akhtar Siddiqui、Mohd Parvez Khan、Bandana Chakravarti、Kunal Sharan、Gaurav Swarnkar、Namrata Rastogi、H. H. Siddiqui、Durga Prasad Mishra、Naibedya Chattopadhyay、Anil K. Saxena

  DOI：10.1021/jm300985d

  日期：2012.10.11

  The synthesis and SAR studies of 10 new chemical entities (NCEs) that have shown BMP-2 stimulation and osteoblast differentiation are reported. Among these, 2-((1-(benzyl(2-hydroxy-2-phenylethyl)amino)-1-oxo-3-phenylpropan-2-yl)carbamoyl)benzoic acid (11) was the most effective while its analogue 13 also showed good activity in inducing osteoblast BMP-2 production. Compound 11 induced osteoblast differentiation in vitro, and this effect was abrogated by a physiological BMP-2 inhibitor, noggin. It also exhibited dose dependent increase in nascent bone formation (2.16- and 3.12-fold more than the control at 1 and 5 mg/kg dose, respectively) at the fracture site in rats. At the maximum osteogenic concentration, compound 11 significantly inhibited osteoblastic proteosomal activity. This compound was safe, as it had no effect on BMP synthesis in cardiovascular tissue.
• Weinreb amide based synthetic equivalents for convenient access to 4-aryl-1,2,3,4-tetrahydroisoquinolines
  作者：Harikrishna Kommidi、Sivaraman Balasubramaniam、Indrapal Singh Aidhen

  DOI：10.1016/j.tet.2010.03.074

  日期：2010.5

  N-methoxy-N-methyl-N′-benzyl-N′-tert-butyloxy carbonyl glycinamide based on WA functionality were developed for the convenient synthesis of 4-aryl-1,2,3,4-tetrahydroisoquinoline framework. Two simple reactions, N-benzylation and addition of arylmagnesium halide on the WA functionality of the former afforded the key intermediate for convenient synthesis of N-phenylsulfonyl protected 4-aryl-1,2,3,4-tetrahydroisoquinoline

  新的合成的等同物，Ñ甲氧基Ñ甲基Ñ ' -苯磺酰基甘氨酰胺和Ñ甲氧基Ñ甲基Ñ ' -苄基- ñ ' -叔-butyloxy羰基于WA功能甘氨酰胺被用于的方便合成开发4-芳基-1,2,3,4-四氢异喹啉骨架。两个简单的反应，N-苄基化和芳基卤化镁在前者的WA功能上的加成提供了方便合成N的关键中间体-苯磺酰基通过还原和酸促进的环化作用来保护4-芳基-1,2,3,4-四氢异喹啉。对于后者，在WA官能团上添加卤化芳基镁，然后按照相同的方案，以良好的产率直接合成了4-芳基-1,2,3,4-四氢异喹啉。酸促进的环化步骤能够同时去除N -Boc保护。
• Enantioselective synthesis of β-hydroxy amines and aziridines using asymmetric transfer hydrogenation of α-amino ketones
  作者：Aparecida M. Kawamoto、Martin Wills

  DOI：10.1039/b102895m

  日期：——

  Enantioselective transfer hydrogenation of α-amino ketones is an effective method for the asymmetric synthesis of β-hydroxy amines and aziridines.

  α-氨基酮的对映选择性转移氢化是一种有效的方法，用于手性合成β-羟基胺和氮丙啶。