N-[2-(4-tert-butylbenzyl)-3-pivaloyloxy-propyl]hydroxylamine | 708261-27-2

• 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: N-[2-(4-tert-butylbenzyl)-3-pivaloyloxy-propyl]hydroxylamine
• 英文别名: [2-(Aminomethyl)-3-(4-tert-butylphenyl)propyl] 2,2-dimethylpropanoate
• CAS: 708261-27-2
• 化学式: C₁₉H₃₁NO₂
• 分子量: 305.461
• InChiKey: VIZSUZCILGKGGJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.69
• 重原子数：
  22.0
• 可旋转键数：
  5.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.63
• 拓扑面积：
  52.32
• 氢给体数：
  1.0
• 氢受体数：
  3.0

反应信息

• 作为反应物：
  描述：

  N-[2-(4-tert-butylbenzyl)-3-pivaloyloxy-propyl]hydroxylamine 在 氢氧化钾 、 sodium azide 、 四丁基氢氧化铵 作用下， 以 二氯甲烷 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 10.0h， 生成 N-[2-(4-tert-butylbenzyl)-3-(pivaloyloxy)propyl]-2-[4-(2-azidoethoxy)-3-methoxyphenyl]acetamide
  参考文献：
  名称：

  Phenolic Modification as an Approach to Improve the Pharmacology of the 3-Acyloxy-2-benzylpropyl Homovanillic Amides and Thioureas, a Promising Class of Vanilloid Receptor Agonists and Analgesics

  摘要：

  In order to improve the analgesic activity and pharmacokinetics of thioureas 2 and 3, which we previously developed as potent vanilloid receptor (VR) agonists, we prepared and characterized phenolic modifications of them and of their amide surrogates (7, 8). The aminoethyl analogue of the amide template 13 was a potent analgesic with an EC50 = 0.96 mug/kg in the AA-induced writhing test and with better in vivo stability than the parent phenol. (C) 2002 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0968-0896(01)00387-x
• 作为产物：
  描述：

  2-(4-叔丁基苄基)-1,3-丙二醇 在 Lindlar's catalyst 4-二甲氨基吡啶 、 sodium azide 、 氢气 、 potassium carbonate 、 对甲苯磺酸 、 三乙胺 作用下， 以 甲醇 、 乙醇 、 二氯甲烷 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 20.0h， 生成 N-[2-(4-tert-butylbenzyl)-3-pivaloyloxy-propyl]hydroxylamine
  参考文献：
  名称：

  N-(3-acyloxy-2-benzylpropyl)-N′-(4-hydroxy-3-methoxybenzyl)thiourea derivatives as potent vanilloid receptor agonists and analgesics

  摘要：

  A series of N-(3-acyloxy-2-benzylpropyl)-N'-(4-hydroxy-3-methoxybenzyl)thioura derivatives were investigated as vanilloid receptor ligands in an effort to discover a novel class of analgesics. The proposed pharmacophore model of resiniferatoxin, which includes the C-20-homovanillic moiety, the C-3-carbonyl and the orthoester phenyl ring as key pharmacophoric groups, was utilized as a guide for drug design. The compounds were synthesized after several steps from diethylmalonate and evaluated in vitro in a receptor binding assay and in a capsaicin-activated channel assay. Additional evaluation of analgesic activity, anti-inflammatory activity and pungency was conducted in animal models by the writhing test, the ear edema assay, and the eye-wiping test, respectively. Among the new compounds, 23 and 28 were found to be the most potent receptor agonists of the series with K-i values of 19 nM and 11 nM, respectively. Their strong in vitro potencies were also reflected by an excellent analgesic profile in animal tests with ED50 values of 0.5 mug/kg for 23 and 1.0 mug/kg for 28. Relative to capsaicin these compounds appear to be ca. 600 and 300 times more potent. Both 23 and 28 were found to be less pungent than capsaicin based on the eye-wiping test. However, the compounds did not show significant anti-inflammatory activity. A molecular modeling study comparing the energy-minimized structures of resiniferatoxin and 35 demonstrated a good correlation in the spatial disposition of the corresponding key pharmacophores. The thioureas described in this investigation, which were designed as simplified resiniferatoxin surrogates, represent a novel class of potent vanilloid receptor agonists endowed with potent analgesic activity and reduced pungency. (C) 2000 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0968-0896(00)00216-9

文献信息

• Analysis of structure–activity relationships for the ‘B-region’ of N -(3-acyloxy-2-benzylpropyl)- N ′ -[4-(methylsulfonylamino)benzyl]thiourea analogues as vanilloid receptor antagonists: discovery of an N -hydroxythiourea analogue with potent analgesic activity
  作者：Jeewoo Lee、Sang-Uk Kang、Hyun-Kyung Choi、Jiyoun Lee、Ju-Ok Lim、Min-Jung Kil、Mi-Kyung Jin、Kang-Pil Kim、Jong-Hyuk Sung、Suk-Jae Chung、Hee-Jin Ha、Young-Ho Kim、Larry V Pearce、Richard Tran、Daniel J Lundberg、Yun Wang、Attila Toth、Peter M Blumberg

  DOI：10.1016/j.bmcl.2004.02.002

  日期：2004.5

  The structural modifications on the B-region of the potent and high affinity vanilloid receptor (VR1) lead ligand N-(3-acyloxy-2-benzylpropyl)-N(')-[4-(methylsulfonylamino)benzyl]thiourea were investigated by the replacement of the thiourea with diverse isosteric functional groups. Structure-activity analysis indicated that the A-region in this series was the primary factor in determining the agonistic/antagonistic

  研究了强效和高亲和力类香草醇受体（VR1）铅配体N-（3-酰氧基-2-苄基丙基）-N（'）-[4-（甲基磺酰基氨基）苄基]硫脲在B区的结构修饰。用不同的等排官能团取代硫脲。结构活性分析表明，该系列中的A区是决定激动/拮抗活性的主要因素，而与B区无关。与母体硫脲类似物相比，N（C）-羟基硫脲类似物（12、13）在乙酸扭曲试验中显示出出色的镇痛活性。
• <i>N</i>-(3-Acyloxy-2-benzylpropyl)-<i>N</i>‘-[4-(methylsulfonylamino)benzyl]thiourea Analogues:  Novel Potent and High Affinity Antagonists and Partial Antagonists of the Vanilloid Receptor
  作者：Jeewoo Lee、Jiyoun Lee、Myungshim Kang、Myoungyoup Shin、Ji-Min Kim、Sang-Uk Kang、Ju-Ok Lim、Hyun-Kyung Choi、Young-Ger Suh、Hyeung-Geun Park、Uhtaek Oh、Hee-Doo Kim、Young-Ho Park、Hee-Jin Ha、Young-Ho Kim、Attila Toth、Yun Wang、Richard Tran、Larry V. Pearce、Daniel J. Lundberg、Peter M. Blumberg

  DOI：10.1021/jm030089u

  日期：2003.7.1

  Isosteric replacement of the phenolic hydroxyl group in potent vanilloid receptor (VR1) agonists with the alkylsulfonamido group provides a series of compounds which are effective antagonists to the action of the capsaicin on rat VR1 heterologously expressed in Chinese hamster ovary (CHO) cells. In particular, compound 61, N-[2-(3,4-dimethylbenzyl)-3-pivaloyloxypropyl]-N'-[3-fluoro-4-(methylsulfonylamin

  用烷基磺酰胺基对强效香草醛受体（VR1）激动剂中的酚羟基进行等位置换，提供了一系列化合物，可有效拮抗辣椒素对在中国仓鼠卵巢（CHO）细胞中异源表达的大鼠VR1的作用。特别是，化合物61 N- [2-（3,4-二甲基苄基）-3-新戊酰氧基丙基] -N'-[3-氟-4-（甲基磺酰氨基邻氨基）苄基]硫脲是辣椒素的完全拮抗剂。 K（i）值为7.8 nM（相比之下，卡塞平为520 nM，5-iodoRTX为4 nM），并且在小鼠中显示出出色的镇痛活性。
• Stereospecific High-affinity TRPV1 Antagonists: Chiral <i>N</i>-(2-Benzyl-3-pivaloyloxypropyl) 2-[4-(methylsulfonylamino)phenyl]propionamide Analogues
  作者：HyungChul Ryu、Mi-Kyoung Jin、Su Yeon Kim、Hyun-Kyung Choi、Sang-Uk Kang、Dong Wook Kang、Jeewoo Lee、Larry V. Pearce、Vladimir A. Pavlyukovets、Matthew A. Morgan、Richard Tran、Attila Toth、Daniel J. Lundberg、Peter M. Blumberg

  DOI：10.1021/jm701049p

  日期：2008.1.1

  Previously, we reported the thiourea antagonists 2a and 2b as potent and high affinity TRPV1 antagonists. For further optimization of the lead compounds, a series of their amide and alpha-substituted amide surrogates were investigated and novel chiral N-(2-benzyl-3-pivaloyloxypropyl) 2-[4-(methylsulfonylamino)phenyl]propionamide analogues were characterized as potent and stereospecific rTRPV1 antagonists. In particular, compounds 72 and 73 displayed high binding affinities, with K-i values of 4.12 and 1.83 nM and potent antagonism with Ki values of 0.58 and 5.2 nM, respectively, in rTRPV1/CHO cells. These values are comparable or more potent than those of 5-iodoRTX under the same assay conditions. A distinctive binding model that includes two hydrophobic pockets is proposed for this series of compounds based on docking studies of 57 and 72 with a homology model of the TM3/4 region of TRPV1.
• Halogenation of 4-hydroxy/amino-3-methoxyphenyl acetamide TRPV1 agonists showed enhanced antagonism to capsaicin
  作者：Dong Wook Kang、Yong Soo Kim、Kwang Su Lim、Myeong Seop Kim、Larry V. Pearce、Vladimir A. Pavlyukovets、Andy K. Tao、Krystle A. Lang-Kuhs、Peter M. Blumberg、Jeewoo Lee

  DOI：10.1016/j.bmc.2010.09.001

  日期：2010.11.15

  As an extension of our analysis of the effect of halogenation on thiourea TRPV1 agonists, we have now modified selected 4-hydroxy(or 4-amino)-3-methoxyphenyl acetamide TRPV1 agonists by 5- or 6-halogenation on the aromatic A-region and evaluated them for potency for TRPV1 binding and regulation and for their pattern of agonism/antagonism (efficacy). Halogenation shifted the functional activity at TRPV1 toward antagonism with a greater extent of antagonism as the size of the halogen increased (I > Br > Cl), as previously observed for the thiourea series. The extent of antagonism was greater for halogenation at the 5-position than at the 6-position, in contrast to SAR for the thiourea series. In this series, compounds 55 and 75 showed the most potent antagonism, with K-i (ant) = 2.77 and 2.19 nM, respectively, on rTRPV1 expressed in Chinese hamster ovary cells. The compounds were thus ca. 40-60-fold more potent than 6'-iodononivamide. (C) 2010 Elsevier Ltd. All rights reserved.
• Halogenation of 4-hydroxy-3-methoxybenzyl thiourea TRPV1 agonists showed enhanced antagonism to capsaicin
  作者：Dong Wook Kang、HyungChul Ryu、Jeewoo Lee、Krystle A. Lang、Vladimir A. Pavlyukovets、Larry V. Pearce、Tetsurou Ikeda、Jozsef Lazar、Peter M. Blumberg

  DOI：10.1016/j.bmcl.2006.09.059

  日期：2007.1

  Selected potent TRPV1 agonists (1-6) have been modified by 5- or 6-halogenation on the aromatic A-region to analyze their effects on potency and efficacy (agonism versus antagonism). The halogenation caused enhanced functional antagonism at TRPV1 compared to the corresponding prototype agonists. The analysis of SAR indicated that the antagonism was enhanced as the size of the halogen increased (I > Br > CI) and when the 6-position was halogenated. Compounds 23c and 31b were found to be potent full antagonists with K-i (as functional antagonist) = 23.1 and 30.3 nM in rTRPV1/CHO system, respectively. (c) 2006 Elsevier Ltd. All rights reserved.