<(benzyloxycarbonyl)-L-valyl>-N-<1-(cyanohydroxymethyl)-2-methylpropyl>-L-prolinamide

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: <(benzyloxycarbonyl)-L-valyl>-N-<1-(cyanohydroxymethyl)-2-methylpropyl>-L-prolinamide
• 英文别名: (benzyloxycarbonyl)-L-valyl-N-<1-(cyanohydroxymethyl)-2-methylpropyl>-L-prolinamide；benzyl N-[(2S)-1-[(2S)-2-[[(2S)-1-cyano-1-hydroxy-3-methylbutan-2-yl]carbamoyl]pyrrolidin-1-yl]-3-methyl-1-oxobutan-2-yl]carbamate
• 化学式: C₂₄H₃₄N₄O₅
• 分子量: 458.558
• InChiKey: VDBRCMRNZWDNOG-JMESPPODSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  33
• 可旋转键数：
  10
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.58
• 拓扑面积：
  132
• 氢给体数：
  3
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  <(benzyloxycarbonyl)-L-valyl>-N-<1-(cyanohydroxymethyl)-2-methylpropyl>-L-prolinamide 在 palladium on activated charcoal 氢气 、 乙酰氯 作用下， 以 乙醇 、 氯仿 为溶剂， 25.0~60.0 ℃ 、344.73 kPa 条件下， 反应 26.0h， 生成 (1S)-L-valyl-N-<1-<(2-benzoxazolyl)hydroxymethyl>-2-methylpropyl>-L-prolinamide
  参考文献：
  名称：

  Peptidyl .alpha.-ketoheterocyclic inhibitors of human neutrophil elastase. 3. In vitro and in vivo potency of a series of peptidyl .alpha.-ketobenzoxazoles

  摘要：

  A series of peptidyl alpha-ketobenzoxazoles were synthesized and evaluated for their in vitro and in vivo inhibition of human neutrophil elastase (HNE). These compounds inhibit HNE by forming both a covalent bond between the ketone carbonyl carbon atom and the hydroxyl group of Ser-195 and a hydrogen bond between the benzoxazole nitrogen atom and His-57. Appending to the parent benzoxazole ring a variety of substituents which spanned a range of physicochemical properties had only a modest effect on in, vitro potency (K-i = 3-0.4 nM). This apparent lack of a significant effect is believed to result from the fact that any increased ketone carbonyl activation by the ring substituent is counter balanced by a corresponding decrease in the hydrogen-bonding ability of the benzoxazole nitrogen atom. In contrast to the results in vitro, maximizing in vive activity was critically dependent upon the choice of the benzoxazole ring substituent. Several substituted peptidyl alpha-ketobenzoxazoles effectively inhibited HNE-induced lung injury when administered intratracheally 24 h prior to the enzyme.

  DOI：

  10.1021/jm00020a011
• 作为产物：
  描述：

  氰化钾 、 N-Benzyloxycarbonyl-L-valyl-L-prolyl-L-valinal 在 水 作用下， 以 四氢呋喃 为溶剂， 反应 4.5h， 生成 <(benzyloxycarbonyl)-L-valyl>-N-<1-(cyanohydroxymethyl)-2-methylpropyl>-L-prolinamide
  参考文献：
  名称：

  Peptidyl .alpha.-ketoheterocyclic inhibitors of human neutrophil elastase. 3. In vitro and in vivo potency of a series of peptidyl .alpha.-ketobenzoxazoles

  摘要：

  A series of peptidyl alpha-ketobenzoxazoles were synthesized and evaluated for their in vitro and in vivo inhibition of human neutrophil elastase (HNE). These compounds inhibit HNE by forming both a covalent bond between the ketone carbonyl carbon atom and the hydroxyl group of Ser-195 and a hydrogen bond between the benzoxazole nitrogen atom and His-57. Appending to the parent benzoxazole ring a variety of substituents which spanned a range of physicochemical properties had only a modest effect on in, vitro potency (K-i = 3-0.4 nM). This apparent lack of a significant effect is believed to result from the fact that any increased ketone carbonyl activation by the ring substituent is counter balanced by a corresponding decrease in the hydrogen-bonding ability of the benzoxazole nitrogen atom. In contrast to the results in vitro, maximizing in vive activity was critically dependent upon the choice of the benzoxazole ring substituent. Several substituted peptidyl alpha-ketobenzoxazoles effectively inhibited HNE-induced lung injury when administered intratracheally 24 h prior to the enzyme.

  DOI：

  10.1021/jm00020a011

文献信息

• Peptidyl .alpha.-ketoheterocyclic inhibitors of human neutrophil elastase. 3. In vitro and in vivo potency of a series of peptidyl .alpha.-ketobenzoxazoles
  作者：Philip D. Edwards、Mark A. Zottola、Matthew Davis、Joseph Williams、Paul A. Tuthill

  DOI：10.1021/jm00020a011

  日期：1995.9

  A series of peptidyl alpha-ketobenzoxazoles were synthesized and evaluated for their in vitro and in vivo inhibition of human neutrophil elastase (HNE). These compounds inhibit HNE by forming both a covalent bond between the ketone carbonyl carbon atom and the hydroxyl group of Ser-195 and a hydrogen bond between the benzoxazole nitrogen atom and His-57. Appending to the parent benzoxazole ring a variety of substituents which spanned a range of physicochemical properties had only a modest effect on in, vitro potency (K-i = 3-0.4 nM). This apparent lack of a significant effect is believed to result from the fact that any increased ketone carbonyl activation by the ring substituent is counter balanced by a corresponding decrease in the hydrogen-bonding ability of the benzoxazole nitrogen atom. In contrast to the results in vitro, maximizing in vive activity was critically dependent upon the choice of the benzoxazole ring substituent. Several substituted peptidyl alpha-ketobenzoxazoles effectively inhibited HNE-induced lung injury when administered intratracheally 24 h prior to the enzyme.
• Peptidyl .alpha.-ketoheterocyclic inhibitors of human neutrophil elastase. 2. Effect of varying the heterocyclic ring on in vitro potency
  作者：Philip D. Edwards、Donald J. Wolanin、Donald W. Andisik、Matthew W. Davis

  DOI：10.1021/jm00001a013

  日期：1995.1

  A series of peptidyl alpha-ketoheterocycles were synthesized and evaluated for their in vitro inhibition of human neutrophil elastase (HNE). Several heterocycles, including oxazoline and benzoxazole, afforded extremely potent inhibitors of HNE (1p-r) with nanomolar to subnanomolar K-i values. The structure-activity relationships revealed that for compounds with a K-i < 1000 nM potency tends to be positively correlated with the sigma(I) value of the heterocycle. Furthermore, the results in this study support the hypothesis that, in the covalent enzyme-inhibitor adduct, the azole nitrogen atom of the inhibitor heterocycle participates in a hydrogen-bonding interaction with the active-site His-57.