N-Boc-b-去甲肾上腺素 | 215187-35-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• 中文名称: N-Boc-b-去甲肾上腺素
• 中文别名: N，N'-BIS(2,2'-二硫代水杨基)酰肼
• 英文名称: tert-butyl 2-(pyridin-3-yl)-1H-pyrrole-1-carboxylate
• 英文别名: N-(tert-butoxycarbonyl)-2-(3-pyridyl)pyrrole；N-Boc-b-nornicotryine；tert-butyl 2-pyridin-3-ylpyrrole-1-carboxylate
• CAS: 215187-35-2
• 化学式: C₁₄H₁₆N₂O₂
• 分子量: 244.293
• InChiKey: GAZXWECQNOAQME-UHFFFAOYSA-N

物化性质

• 沸点：
  378.6±34.0 °C(Predicted)
• 密度：
  1.09±0.1 g/cm3(Predicted)
• 溶解度：
  可溶于氯仿（少许）、甲醇（少许）

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  44.1
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  N-Boc-b-去甲肾上腺素 在 sodium methylate 作用下， 以 甲醇 为溶剂， 生成 2-(3-吡啶基)1H-吡咯
  参考文献：
  名称：

  Palladium(0)-Catalysed Arylations using Pyrrole and Indole 2-Boronic Acids

  摘要：

  以 N-(叔丁氧羰基)吡咯-2-硼酸或 N-(叔丁氧羰基)吲哚-2-硼酸作为铃木偶联的组分，介绍了 2-芳基吡咯和 2-芳基吲哚的多功能合成方法。

  DOI：

  10.1055/s-1998-1834
• 作为产物：
  描述：

  二碳酸二叔丁酯 在 (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride 、 N-溴代丁二酰亚胺(NBS) 、 potassium carbonate 作用下， 以 四氢呋喃 、 乙醇 、 水 、 甲苯 为溶剂， 生成 N-Boc-b-去甲肾上腺素
  参考文献：
  名称：

  Transformation of the Non-Selective Aminocyclohexanol-Based Hsp90 Inhibitor into a Grp94-Seletive Scaffold

  摘要：

  Glucose regulated protein 94 kDa, Grp94, is the endoplasmic reticulum (ER) localized isoform of heat shock protein 90 (Hsp90) that is responsible for the trafficking and maturation of toll-like receptors, immunoglobulins, and integrins. As a result, Grp94 has emerged as a therapeutic target to disrupt cellular communication, adhesion, and tumor proliferation, potentially with fewer side effects compared to pan- inhibitors of all Hsp90 isoforms. Although, the N-terminal ATP binding site is highly conserved among all four Hsp90 isoforms, recent cocrystal structures of Grp94 have revealed subtle differences between Grp94 and other Hsp90 isoforms that has been exploited for the development of Grp94-selective inhibitors. In the current study, a structure-based approach has been applied to a Grp94 nonselective compound, SNX 2112, which led to the development of 8j (ACO1), a Grp94-selective inhibitor that manifests,similar to 440 nM affinity and >200-fold selectivity against cytosolic Hsp90 isoforms.

  DOI：

  10.1021/acschembio.6b00747

文献信息

• Room-Temperature Suzuki-Miyaura Coupling of Heteroaryl Chlorides and Tosylates
  作者：Junfeng Yang、Sijia Liu、Jian-Feng Zheng、Jianrong Steve Zhou

  DOI：10.1002/ejoc.201200918

  日期：2012.11

  Suzuki–Miyaura coupling of heteroaryls is an important method for the preparation of compound libraries for medicinal chemistry and materials research. Although many catalysts have been developed, none of them have been generally applicable to the coupling reactions of heteroaryl chlorides and tosylates at room temperature. We discovered that a catalyst combination of Pd(OAc)2 and XPhos (2-dicyclohexylphosphanyl-2′

  杂芳基的 Suzuki-Miyaura 偶联是制备用于药物化学和材料研究的化合物库的重要方法。尽管已经开发了许多催化剂，但它们都没有普遍适用于杂芳基氯与甲苯磺酸酯在室温下的偶联反应。我们发现 Pd(OAc)2 和 XPhos（2-二环己基膦酰基-2',4',6'-三异丙基联苯）的催化剂组合可以有效地催化这些偶联。除了催化剂的选择，在含水醇溶剂中使用氢氧化物碱对于快速偶联也是必不可少的。这些条件促进了活性催化剂（XPhos）Pd0 的快速释放，并加速了催化循环中的金属转移。大多数杂芳基氯（31 个实例）和甲苯磺酸盐（17 个实例）的主要家族在室温下在几分钟到几小时内达到完全转化。该方法可以很容易地扩大规模以进行克级合成。此外，我们检查了整个反应中偶联伙伴的相对反应性。富电子杂芳基氯化物和甲苯磺酸盐的反应速度比缺电子杂芳基化合物慢，顺序为吲哚、吡咯呋喃、噻吩>吡啶。类似地，缺电子芳基硼酸的反应
• Highly Reactive, Single-Component Nickel Catalyst Precursor for Suzuki-Miyuara Cross-Coupling of Heteroaryl Boronic Acids with Heteroaryl Halides
  作者：Shaozhong Ge、John F. Hartwig

  DOI：10.1002/anie.201207428

  日期：2012.12.14

  One for all: The coupling of a range of nitrogen‐ and sulfur‐containing heteroaryl halides with five‐membered nitrogen‐, oxygen‐, and sulfur‐containing heteroaryl boronic acids were achieved in high yields with only 0.5 mol % of the single‐component nickel precatalyst [(dppf)NiCl(cinnamyl)] (dppf=1,1′‐bis(diphenylphosphanyl)ferrocene). The reaction demonstrates good functional group compatibility,

  一劳永逸：一系列含氮和硫的杂芳基卤化物与五元含氮、氧和硫杂芳基硼酸的偶联以高产率实现，单组分仅为 0.5 mol%镍预催化剂 [(dppf)NiCl(肉桂基)] (dppf=1,1'-双(二苯基膦基)二茂铁)。该反应具有良好的官能团相容性，无需干燥箱即可大规模进行。
• Palladium/Tris( <i>tert</i> ‐butyl)phosphine‐Catalyzed Suzuki Cross‐ Couplings in the Presence of Water
  作者：Sha Lou、Gregory C. Fu

  DOI：10.1002/adsc.201000267

  日期：2010.10.9

  Dipalladiumtris(dibenzylideneacetone)/tris(tert-butyl)phosphonium tetrafluoroborate/potassium fluoride dihydrate [Pd2(dba)3/[HP(t-Bu)3]BF4/KF⋅2 H2O] serves as a mild, robust, and user-friendly method for the efficient Suzuki cross-coupling of a diverse array of aryl and heteroaryl halides with aryl- and heteroarylboronic acids.

  二钯三(二亚苄基丙酮)/三(叔丁基)四氟硼酸鏻/氟化钾二水合物 [Pd 2 (dba) 3 /[HP( t- Bu) 3 ]BF 4 /KF⋅2 H 2 O] 是一种温和、稳定的化合物，以及用户友好的方法，用于多种芳基和杂芳基卤化物与芳基和杂芳基硼酸的有效 Suzuki 交叉偶联。
• Visible-Light-Photocatalyzed Metal-Free C-H Heteroarylation of Heteroarenes at Room Temperature: A Sustainable Synthesis of Biheteroaryls
  作者：Pintu Maity、Debasish Kundu、Brindaban C. Ranu

  DOI：10.1002/ejoc.201500006

  日期：2015.3

  An efficient C–H heteroarylation of heteroarenes is achieved through visible-light photoredox-catalyzed diazotization of heteroarylamines in situ by tBuONO at room temperature. A library of functionalized biheteroaryls is obtained by using this protocol. The reaction avoids the use of transition-metal catalysts, additives, and acidic reaction medium.

  杂芳烃的有效 C-H 杂芳基化是通过 tBuONO 在室温下通过可见光光氧化还原催化的杂芳基胺原位重氮化实现的。使用该协议获得功能化二杂芳基文库。该反应避免使用过渡金属催化剂、添加剂和酸性反应介质。
• Transformation of the Non-Selective Aminocyclohexanol-Based Hsp90 Inhibitor into a Grp94-Seletive Scaffold
  作者：Sanket J. Mishra、Suman Ghosh、Andrew R. Stothert、Chad A. Dickey、Brian S. J. Blagg

  DOI：10.1021/acschembio.6b00747

  日期：2017.1.20

  Glucose regulated protein 94 kDa, Grp94, is the endoplasmic reticulum (ER) localized isoform of heat shock protein 90 (Hsp90) that is responsible for the trafficking and maturation of toll-like receptors, immunoglobulins, and integrins. As a result, Grp94 has emerged as a therapeutic target to disrupt cellular communication, adhesion, and tumor proliferation, potentially with fewer side effects compared to pan- inhibitors of all Hsp90 isoforms. Although, the N-terminal ATP binding site is highly conserved among all four Hsp90 isoforms, recent cocrystal structures of Grp94 have revealed subtle differences between Grp94 and other Hsp90 isoforms that has been exploited for the development of Grp94-selective inhibitors. In the current study, a structure-based approach has been applied to a Grp94 nonselective compound, SNX 2112, which led to the development of 8j (ACO1), a Grp94-selective inhibitor that manifests,similar to 440 nM affinity and >200-fold selectivity against cytosolic Hsp90 isoforms.