diethanolamine[(1R)-1-acetamido-2-(1-naphthyl)ethyl]boronate | 173937-90-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: diethanolamine[(1R)-1-acetamido-2-(1-naphthyl)ethyl]boronate
• 英文别名: N-[(1R)-1-(1,3,6,2-dioxazaborocan-2-yl)-2-naphthalen-1-ylethyl]acetamide
• CAS: 173937-90-1
• 化学式: C₁₈H₂₃BN₂O₃
• 分子量: 326.203
• InChiKey: CWXOHMANIYSZBZ-SFHVURJKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.55
• 重原子数：
  24
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.39
• 拓扑面积：
  59.6
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  [(1R)-1-acetamido-2-(1-naphthyl)ethyl]boronic acid 、 二乙醇胺 以 异丙醇 为溶剂， 以35%的产率得到diethanolamine[(1R)-1-acetamido-2-(1-naphthyl)ethyl]boronate
  参考文献：
  名称：

  Probing the Specificity of the Serine Proteases Subtilisin Carlsberg and α-Chymotrypsin with Enantiomeric 1-Acetamido Boronic Acids. An Unexpected Reversal of the Normal “l”-Stereoselectivity Preference

  摘要：

  Enantiomeric 1-acetamido boronic acids, which are N-acetyl transition state analog inhibitor analogs of L- and D-forms of the amino acids alanine, phenylalanine, p-fluorophenylalanine, p-chlorophenylalanine, and 1-naphthylalanine, have been evaluated as inhibitors of the serine proteases subtilisin Carlsberg (SC) and alpha-chymotrypsin (CT). All of the boronic acids are powerful competitive inhibitors of both enzymes, with, as expected, the L-enantiomers being generally more potent than the D-enantiomers. However, a dramatic reversal of the normal stereoselectivity preference was observed in the inhibition of CT by [1-acetamido-2-(1-naphthyl)ethyl]boronic acid, with the D-enantiomer becoming a 25-fold more potent inhibitor than the L-enantiomer. Furthermore, the K-I of 127 nM for CT inhibition by this D-enantiomer is the lowest of any of the boronic acids evaluated. Molecular modeling analyses of the possible binding modes of the inhibitors suggest that the stereoselectivity reversal is due to S-1-pocket orientations of naphthyl groups that are different from those of the aromatic side chains of the phenylalanine analogs.

  DOI：

  10.1021/ja952816j

文献信息

• Probing the Specificity of the Serine Proteases Subtilisin Carlsberg and α-Chymotrypsin with Enantiomeric 1-Acetamido Boronic Acids. An Unexpected Reversal of the Normal “<scp>l</scp>”-Stereoselectivity Preference
  作者：Valeri Martichonok、J. Bryan Jones

  DOI：10.1021/ja952816j

  日期：1996.1.1

  Enantiomeric 1-acetamido boronic acids, which are N-acetyl transition state analog inhibitor analogs of L- and D-forms of the amino acids alanine, phenylalanine, p-fluorophenylalanine, p-chlorophenylalanine, and 1-naphthylalanine, have been evaluated as inhibitors of the serine proteases subtilisin Carlsberg (SC) and alpha-chymotrypsin (CT). All of the boronic acids are powerful competitive inhibitors of both enzymes, with, as expected, the L-enantiomers being generally more potent than the D-enantiomers. However, a dramatic reversal of the normal stereoselectivity preference was observed in the inhibition of CT by [1-acetamido-2-(1-naphthyl)ethyl]boronic acid, with the D-enantiomer becoming a 25-fold more potent inhibitor than the L-enantiomer. Furthermore, the K-I of 127 nM for CT inhibition by this D-enantiomer is the lowest of any of the boronic acids evaluated. Molecular modeling analyses of the possible binding modes of the inhibitors suggest that the stereoselectivity reversal is due to S-1-pocket orientations of naphthyl groups that are different from those of the aromatic side chains of the phenylalanine analogs.