1-(4-bromobenzyl)-2-methylpiperidine | 29180-45-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 哌啶类
• 英文名称: 1-(4-bromobenzyl)-2-methylpiperidine
• 英文别名: N-(4-bromobenzyl)-2-methylpiperidine；1-[(4-bromophenyl)methyl]-2-methylpiperidine
• CAS: 29180-45-8
• 化学式: C₁₃H₁₈BrN
• mdl: MFCD07095097
• 分子量: 268.197
• InChiKey: OBBKUSZEBQMHCN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.538
• 拓扑面积：
  3.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2-吡咯烷酮 、 1-(4-bromobenzyl)-2-methylpiperidine 在 copper(l) iodide 、 potassium carbonate 、 N,N'-二甲基乙二胺 作用下， 以 1,4-二氧六环 为溶剂， 以20%的产率得到1-(4-((2-methylpiperidin-1-yl)methyl)phenyl)pyrrolidin-2-one
  参考文献：
  名称：

  Synthesis and structure–activity relationships for 1-(4-(piperidin-1-ylsulfonyl)phenyl)pyrrolidin-2-ones as novel non-carboxylate inhibitors of the aldo-keto reductase enzyme AKR1C3

  摘要：

  High expression of the aldo-keto reductase enzyme AKR1C3 in the human prostate and breast has implicated it in the development and progression of leukemias and of prostate and breast cancers. Inhibitors are thus of interest as potential drugs. Most inhibitors of AKR1C3 are carboxylic acids, whose transport into cells is likely dominated by carrier-mediated processes. We describe here a series of (piperidinosulfonamidophenyl)pyrrolidin-2-ones as potent (<100 nM) and isoform-selective non-carboxylate inhibitors of AKR1C3. Structure-activity relationships identified the sulfonamide was critical, and a crystal structure showed the 2-pyrrolidinone does not interact directly with residues in the oxyanion hole. Variations in the position, co-planarity or electronic nature of the pyrrolidinone ring severely diminished activity, as did altering the size or polarity of the piperidino ring. There was a broad correlation between the enzyme potencies of the compounds and their effectiveness at inhibiting AKR1C3 activity in cells. (C) 2013 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2013.01.047
• 作为产物：
  描述：

  对溴溴苄 、 2-甲基哌啶 在 potassium carbonate 作用下， 以 乙腈 为溶剂， 反应 24.0h， 以77%的产率得到1-(4-bromobenzyl)-2-methylpiperidine
  参考文献：
  名称：

  由甲硅烷基诱导的 CN 键裂解实现的 α-甲基氮杂环的电影-甲硅烷基化开环

  摘要：

  本文描述了硼烷催化的α-甲基氮杂环的电影-甲硅烷基化开环的开发。这种转化涉及四步级联过程：(i) 脂环胺的外脱氢，(ii) 所得烯胺的氢化硅烷化，(iii) 甲硅烷诱导的顺式-β-氨基消除以打开环骨架，以及 (iv) 氢化硅烷化端烯烃。本硼烷催化对于无环叔胺的 CN 键断裂也有效。在实验和计算研究的基础上，阐明了硅原子在 β-氨基消除步骤中起关键作用。

  DOI：

  10.1021/jacs.0c05241

文献信息

• <i>cine</i>-Silylative Ring-Opening of α-Methyl Azacycles Enabled by the Silylium-Induced C–N Bond Cleavage
  作者：Jianbo Zhang、Sukbok Chang

  DOI：10.1021/jacs.0c05241

  日期：2020.7.22

  exo-dehydrogenation of alicyclic amine, (ii) hydrosilylation of resultant enamine, (iii) silylium-induced cis-β-amino elimination to open the ring skeleton, and (iv) hydrosilylation of terminal olefin. The present borane catalysis also works efficiently for the C-N bond cleavage of acyclic tertiary amines. On the basis of experimental and computational studies, the silicon atom was elucidated to play a pivotal

  本文描述了硼烷催化的α-甲基氮杂环的电影-甲硅烷基化开环的开发。这种转化涉及四步级联过程：(i) 脂环胺的外脱氢，(ii) 所得烯胺的氢化硅烷化，(iii) 甲硅烷诱导的顺式-β-氨基消除以打开环骨架，以及 (iv) 氢化硅烷化端烯烃。本硼烷催化对于无环叔胺的 CN 键断裂也有效。在实验和计算研究的基础上，阐明了硅原子在 β-氨基消除步骤中起关键作用。
• Synthesis and structure–activity relationships for 1-(4-(piperidin-1-ylsulfonyl)phenyl)pyrrolidin-2-ones as novel non-carboxylate inhibitors of the aldo-keto reductase enzyme AKR1C3
  作者：Daniel M. Heinrich、Jack U. Flanagan、Stephen M.F. Jamieson、Shevan Silva、Laurent J.M. Rigoreau、Elisabeth Trivier、Tony Raynham、Andrew P. Turnbull、William A. Denny

  DOI：10.1016/j.ejmech.2013.01.047

  日期：2013.4

  High expression of the aldo-keto reductase enzyme AKR1C3 in the human prostate and breast has implicated it in the development and progression of leukemias and of prostate and breast cancers. Inhibitors are thus of interest as potential drugs. Most inhibitors of AKR1C3 are carboxylic acids, whose transport into cells is likely dominated by carrier-mediated processes. We describe here a series of (piperidinosulfonamidophenyl)pyrrolidin-2-ones as potent (<100 nM) and isoform-selective non-carboxylate inhibitors of AKR1C3. Structure-activity relationships identified the sulfonamide was critical, and a crystal structure showed the 2-pyrrolidinone does not interact directly with residues in the oxyanion hole. Variations in the position, co-planarity or electronic nature of the pyrrolidinone ring severely diminished activity, as did altering the size or polarity of the piperidino ring. There was a broad correlation between the enzyme potencies of the compounds and their effectiveness at inhibiting AKR1C3 activity in cells. (C) 2013 Elsevier Masson SAS. All rights reserved.