(3aS,4S,6S,7aR)-3a,5,5-trimethyl-2-(2-phenylethyl)hexahydro-4,6-methano-1,3,2-benzodioxaborole | 244782-33-0

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: (3aS,4S,6S,7aR)-3a,5,5-trimethyl-2-(2-phenylethyl)hexahydro-4,6-methano-1,3,2-benzodioxaborole
• 英文别名: (1S,2S,6R,8S)-2,9,9-trimethyl-4-(2-phenylethyl)-3,5-dioxa-4-bora-tricyclo[6.1.1.0*2,6*]decane；(1S,2S,6R,8S)-2,9,9-trimethyl-4-(2-phenylethyl)-3,5-dioxa-4-boratricyclo[6.1.1.02,6]decane
• CAS: 244782-33-0
• 化学式: C₁₈H₂₅BO₂
• 分子量: 284.206
• InChiKey: BBNHYTRWCSXVPQ-CUSZFKRNSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.96
• 重原子数：
  21
• 可旋转键数：
  3
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (3aS,4S,6S,7aR)-3a,5,5-trimethyl-2-(2-phenylethyl)hexahydro-4,6-methano-1,3,2-benzodioxaborole 在 正丁基锂 、 sodium azide 、 四丁基溴化铵 、 三乙基硼氢化锂 作用下， 以 四氢呋喃 、 二氯甲烷 、 水 为溶剂， 反应 35.32h， 生成
  参考文献：
  名称：

  由αα-和αβ-氨基酸构建的新型二肽基硼酸蛋白酶体抑制剂的设计，合成和对接研究

  摘要：

  设计并合成了一系列由αα-和αβ-氨基酸构建的新型二肽基硼酸蛋白酶体抑制剂。通过1 H NMR，13 C NMR，LC-MS和HRMS阐明了它们的结构。评价这些化合物对人蛋白酶体的β5亚基抑制活性。结果表明，由αα-氨基酸组成的二肽基硼酸抑制剂的活性与硼替佐米相同。有趣的是，那些衍生自αβ-氨基酸的酶的活性完全丧失了。在所有抑制剂中，化合物22（IC 50  = 4.82 nM）对蛋白酶体活性的抑制作用最强。化合物22还是对三种具有IC 50的MM细胞系最有活性的在抑制细胞生长试验中，其值小于5 nM。分子对接研究表明，22个蛋白非常适合蛋白酶体的β5亚基活性口袋。

  DOI：

  10.1016/j.bmcl.2016.03.007
• 作为产物：
  描述：

  在 硫酸 作用下， 生成 (3aS,4S,6S,7aR)-3a,5,5-trimethyl-2-(2-phenylethyl)hexahydro-4,6-methano-1,3,2-benzodioxaborole
  参考文献：
  名称：

  P1 Phenethyl peptide boronic acid inhibitors of HCV NS3 protease

  摘要：

  A series of peptide boronic acids containing extended, hydrophobic P1 residues was prepared to probe the shallow, hydrophobic S1 region of HCV NS3 protease. The p-trifluoromethylphenethyl P1 substituent was identified as optimal with respect to inhibitor potency for NS3 and selectivity against elastase and chymotrypsin. (C) 2002 Published by Elsevier Science Ltd.

  DOI：

  10.1016/s0960-894x(02)00682-0

文献信息

• Observations on the Deprotection of Pinanediol and Pinacol Boronate Esters via Fluorinated Intermediates
  作者：Steven R. Inglis、Esther C. Y. Woon、Amber L. Thompson、Christopher J. Schofield

  DOI：10.1021/jo901930v

  日期：2010.1.15

  pinacol esters of various boronic acids via fluoroborane intermediates were evaluated. Treatment of the boronate esters with potassium hydrogen difluoride normally gives trifluoroborate salts; in the case of α-amido alkyl or o-amido phenyl boronate esters, aqueous workup gives difluoroboranes. Procedures for transformation of both trifluoroborates and difluoroboranes to free boronic acids are described.

  评估了通过氟硼烷中间体对各种硼酸的pin二醇和频哪醇酯进行脱保护的方法。用二氟化氢钾处理硼酸酯通常会得到三氟硼酸盐。在α-氨基烷基或邻氨基苯基硼酸酯的情况下，水后处理得到二氟硼烷。描述了将三氟硼酸酯和二氟硼烷转化为游离硼酸的方法。
• Stability of Boronic Esters to Hydrolysis: A Comparative Study
  作者：Raffaella Bernardini、Ambrogio Oliva、Alessandro Paganelli、Ernesto Menta、Mario Grugni、Sergio De Munari、Luca Goldoni

  DOI：10.1246/cl.2009.750

  日期：2009.7.5

  Boronic esters are key intermediates in the synthesis of biologically active compounds such as thrombin and proteasome inhibitors. However, they have low hydrolytic stability both during synthetic reactions and in biological media. We report the preparation of several boronic esters and a comparative study of their stability to hydrolysis vs. the corresponding pinanediol boronic esters, which are among the most hydrolytically stable. We discovered that the boronic esters derived from (1,1′-bicyclohexyl)-1,1′-diol are the most stable among those examined.

  硼酸酯是合成生物活性化合物（如凝血酶和蛋白酶体抑制剂）的关键中间体。然而，它们在合成反应过程中以及在生物介质中均表现出较低的水解稳定性。我们报道了多种硼酸酯的制备及其与相应的水解稳定性较高的二氢二醇硼酸酯的稳定性对比研究。我们发现，由(1,1′-双环己基)-1,1′-二醇衍生的硼酸酯在所研究的样品中水解稳定性最高。
• Design, synthesis and docking studies of novel dipeptidyl boronic acid proteasome inhibitors constructed from αα- and αβ-amino acids
  作者：Jingmiao Shi、Meng Lei、Wenkui Wu、Huayun Feng、Jia Wang、Shanshan Chen、Yongqiang Zhu、Shihe Hu、Zhaogang Liu、Cheng Jiang

  DOI：10.1016/j.bmcl.2016.03.007

  日期：2016.4

  series of novel dipeptidyl boronic acid proteasome inhibitors constructed from αα- and αβ-amino acids were designed and synthesized. Their structures were elucidated by 1H NMR, 13C NMR, LC–MS and HRMS. These compounds were evaluated for their β5 subunit inhibitory activities of human proteasome. The results showed that dipeptidyl boronic acid inhibitors composed of αα-amino acids were as active as bortezomib

  设计并合成了一系列由αα-和αβ-氨基酸构建的新型二肽基硼酸蛋白酶体抑制剂。通过1 H NMR，13 C NMR，LC-MS和HRMS阐明了它们的结构。评价这些化合物对人蛋白酶体的β5亚基抑制活性。结果表明，由αα-氨基酸组成的二肽基硼酸抑制剂的活性与硼替佐米相同。有趣的是，那些衍生自αβ-氨基酸的酶的活性完全丧失了。在所有抑制剂中，化合物22（IC 50  = 4.82 nM）对蛋白酶体活性的抑制作用最强。化合物22还是对三种具有IC 50的MM细胞系最有活性的在抑制细胞生长试验中，其值小于5 nM。分子对接研究表明，22个蛋白非常适合蛋白酶体的β5亚基活性口袋。
• P1 Phenethyl peptide boronic acid inhibitors of HCV NS3 protease
  作者：E.Scott Priestley、Indawati De Lucca、Bahman Ghavimi、Susan Erickson-Viitanen、Carl P. Decicco

  DOI：10.1016/s0960-894x(02)00682-0

  日期：2002.11

  A series of peptide boronic acids containing extended, hydrophobic P1 residues was prepared to probe the shallow, hydrophobic S1 region of HCV NS3 protease. The p-trifluoromethylphenethyl P1 substituent was identified as optimal with respect to inhibitor potency for NS3 and selectivity against elastase and chymotrypsin. (C) 2002 Published by Elsevier Science Ltd.