(S)-5-hydroxy-5-(2-phenethyl)-3-keto-6-methylheptanoic acid ethyl ester | 260257-63-4

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 酮酸及其衍生物
• 英文名称: (S)-5-hydroxy-5-(2-phenethyl)-3-keto-6-methylheptanoic acid ethyl ester
• CAS: 260257-63-4
• 化学式: C₁₈H₂₆O₄
• 分子量: 306.402
• InChiKey: COBSQSFCQKCLDH-SFHVURJKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.92
• 重原子数：
  22.0
• 可旋转键数：
  9.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  63.6
• 氢给体数：
  1.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  (S)-5-hydroxy-5-(2-phenethyl)-3-keto-6-methylheptanoic acid ethyl ester 在 sodium hydroxide 作用下， 以 四氢呋喃 为溶剂， 以86%的产率得到(S)-4-hydroxy-6-isopropyl-6-(2-phenethyl)-5,6-dihydropyran-2-one
  参考文献：
  名称：

  Nonpeptidic HIV protease inhibitors possessing excellent antiviral activities and therapeutic indices. PD 178390: a lead HIV protease inhibitor

  摘要：

  With the insight generated by the availability of X-ray crystal structures of various 5,6-dihydropyran-2-ones bound to HIV PR, inhibitors possessing various alkyl groups at the 6-position of 5,6-dihydropyran-2-one ring were synthesized. The inhibitors possessing a 6-alkyl group exhibited superior antiviral activities when compared to 6-phenyl analogues. Antiviral efficacies were further improved upon introduction of a polar group (hydroxyl or amino) on the 4-position of the phenethyl moiety as well as the polar group (hydroxymethyl) on the 3-(tert-butyl-5-methyl-phenylthio) moiety. The polar substitution is also advantageous for decreasing toxicity, providing inhibitors with higher therapeutic indices. The best inhibitor among this series, (S)-6-[2-(4-aminophenyl)-ethyl]-(3-(2-tert-butyl-5-methyl-phenylsulfa nyl)-4-hydroxy-6-isopropyl-5,6-dihydro-pyran-2-one (34S), exhibited an EC50 of 200 nM with a therapeutic index of > 1000. More importantly, these non-peptidic inhibitors, 16S and 34S, appear to offer little cross-resistance to the currently marketed peptidomimetic PR inhibitors. The selected inhibitors tested in vitro against mutant HIV PR showed a very small increase in binding affinities relative to wild-type HIV PR. Cmax and absolute bioavailability of 34S were higher and half-life and time above EC95 were longer compared to 16S. Thus 34S, also known as PD 178390, which displays good antiviral efficacy, promising pharmacokinetic characteristics and favorable activity against mutant enzymes and CYP3A4, has been chosen for further preclinical evaluation.

  DOI：

  10.1016/s0968-0896(99)00215-1
• 作为产物：
  描述：

  3-[4-(苄氧基)苯基]丙酸 在 吡啶 、 lithium hydroxide 、 正丁基锂 、 氯化亚砜 、 R(+)-alpha-甲基苄胺 、 二异丙胺 、 N,N'-羰基二咪唑 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 水 、 乙酸乙酯 为溶剂， 反应 43.0h， 生成 (S)-5-hydroxy-5-(2-phenethyl)-3-keto-6-methylheptanoic acid ethyl ester
  参考文献：
  名称：

  Nonpeptidic HIV protease inhibitors possessing excellent antiviral activities and therapeutic indices. PD 178390: a lead HIV protease inhibitor

  摘要：

  With the insight generated by the availability of X-ray crystal structures of various 5,6-dihydropyran-2-ones bound to HIV PR, inhibitors possessing various alkyl groups at the 6-position of 5,6-dihydropyran-2-one ring were synthesized. The inhibitors possessing a 6-alkyl group exhibited superior antiviral activities when compared to 6-phenyl analogues. Antiviral efficacies were further improved upon introduction of a polar group (hydroxyl or amino) on the 4-position of the phenethyl moiety as well as the polar group (hydroxymethyl) on the 3-(tert-butyl-5-methyl-phenylthio) moiety. The polar substitution is also advantageous for decreasing toxicity, providing inhibitors with higher therapeutic indices. The best inhibitor among this series, (S)-6-[2-(4-aminophenyl)-ethyl]-(3-(2-tert-butyl-5-methyl-phenylsulfa nyl)-4-hydroxy-6-isopropyl-5,6-dihydro-pyran-2-one (34S), exhibited an EC50 of 200 nM with a therapeutic index of > 1000. More importantly, these non-peptidic inhibitors, 16S and 34S, appear to offer little cross-resistance to the currently marketed peptidomimetic PR inhibitors. The selected inhibitors tested in vitro against mutant HIV PR showed a very small increase in binding affinities relative to wild-type HIV PR. Cmax and absolute bioavailability of 34S were higher and half-life and time above EC95 were longer compared to 16S. Thus 34S, also known as PD 178390, which displays good antiviral efficacy, promising pharmacokinetic characteristics and favorable activity against mutant enzymes and CYP3A4, has been chosen for further preclinical evaluation.

  DOI：

  10.1016/s0968-0896(99)00215-1