(4R,5R,6R)-tetrahydro-5-hydroxy-4-(2-phenylethyl)-6-(phenylmethyl)-2(1H)-pyrimidinone | 189818-21-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: (4R,5R,6R)-tetrahydro-5-hydroxy-4-(2-phenylethyl)-6-(phenylmethyl)-2(1H)-pyrimidinone
• 英文别名: (4R,5R,6R)-4-benzyl-5-hydroxy-6-(2-phenylethyl)-1,3-diazinan-2-one
• CAS: 189818-21-1
• 化学式: C₁₉H₂₂N₂O₂
• 分子量: 310.396
• InChiKey: FUDUYBXLEUOWMF-KZNAEPCWSA-N

物化性质

• 熔点：
  162-163 °C
• 沸点：
  564.4±43.0 °C(Predicted)
• 密度：
  1.155±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  23
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.32
• 拓扑面积：
  61.4
• 氢给体数：
  3
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (4R,5R,6R)-tetrahydro-5-hydroxy-4-(2-phenylethyl)-6-(phenylmethyl)-2(1H)-pyrimidinone 在 palladium on activated charcoal potassium tert-butylate 、 氢气 、 对甲苯磺酸 作用下， 以 四氢呋喃 、 氯仿 为溶剂， 生成 (4R,5R,6R)-1-(3-Amino-benzyl)-6-benzyl-4-phenethyl-5-(tetrahydro-pyran-2-yloxy)-tetrahydro-pyrimidin-2-one
  参考文献：
  名称：

  Stereospecific Synthesis, Structure−Activity Relationship, and Oral Bioavailability of Tetrahydropyrimidin-2-one HIV Protease Inhibitors

  摘要：

  The use of tetrahydropyrimidinones as an alternate scaffold for designing HIVPR inhibitors has advantages, over the previously disclosed hexahydro-1,3-diazepin-2-ones, of being more unsymmetrical (different P1/P1'), less crystalline, more soluble, and more lipophilic (mono-ol vs diol). They show a better translation of K-i to IC90 for the more polar P2 groups that in general give the more potent enzyme inhibitors. Structure-activity relationship (SAR) studies of the tetrahydropyrimidinones showed that the phenylethyl P1' substituent, the hydroxyl group, and the urea carbonyl are all critical for good activity. However, there was significant flexibility in the possible P2/P2' substituents that could be used. Many analogues that contained identical or different P2/P2' substituents, or only one P2 substituent, were found to have excellent enzyme potency and several had excellent antiviral potency. Several of these compounds were examined for oral bioavailability in the rat or the dog at 10 mg/kg. However, the oral bioavailability of the tetrahydropyrimidinones was, in general, less than the corresponding hexahydro-1,3-diazepin-2-ones. Unfortunately, when all factors are considered, including potency, protein binding, solubility, bioavailability, and resistance profile, the tetrahydropyrimidinones did not offer any advantage over the previously disclosed hexahydro-1,3-diazepin-2-ones series.

  DOI：

  10.1021/jm9803626
• 作为产物：
  描述：

  N-methoxy-N-methyl-(R)-N²-Cbz-phenylalaninamide 在 palladium dihydroxide 盐酸 、 sodium tetrahydroborate 、 sodium azide 、 cerium(III) chloride 、 氢气 、 氯化铵 、 溶剂黄146 、 二异丙胺 、 N,N-二异丙基乙胺 、 间氯过氧苯甲酸 作用下， 以 四氢呋喃 、 甲醇 、 乙醚 、 二氯甲烷 、 水 、 乙酸乙酯 、 N,N-二甲基甲酰胺 为溶剂， -70.0~85.0 ℃ 、379.21 kPa 条件下， 反应 45.83h， 生成 (4R,5R,6R)-tetrahydro-5-hydroxy-4-(2-phenylethyl)-6-(phenylmethyl)-2(1H)-pyrimidinone
  参考文献：
  名称：

  四氢嘧啶酮的设计，合成和评估，作为非肽类HIV蛋白酶抑制剂一般方法的一个例子。

  摘要：

  对HIV蛋白酶（HIVPR）抑制剂的环状脲类设计的重新审查提出了设计新型非肽环状HIVPR抑制剂的一般方法。该过程涉及线性HIVPR抑制剂的核心过渡态等位体的立体化学中心的反转，以及使用合适的环化试剂环化所得核心。例如，该方法应用于HIVPR抑制剂的二氨基醇类，得到四氢嘧啶酮。四氢嘧啶酮的构象分析及其与HIVPR活性位点相互作用的模型表明，修饰导致了非常有效的HIVPR抑制剂（24种，Ki = 0.018 nM）。具有HIVPR的24配合物的X射线晶体学结构证实了分析和模型预测。

  DOI：

  10.1021/jm970081i

文献信息

• Stereospecific, Stereoselective Rearrangement of Hexahydro-1,3-diazepin-2-ones to Tetrahydropyrimidin-2-ones and Imidazolidin-2-ones, a Useful Route for the Synthesis of HIV Protease Inhibitors
  作者：George V. De Lucca

  DOI：10.1021/jo980533e

  日期：1998.7.1

  We have discovered that hexahydro-5,6-dihydroxy-1,3-diazepin-2-ones can undergo a stereospecific, stereoselective-rearrangement, ring-contraction reaction to give the corresponding tetrahydro-5-hydroxypyrimidin-2-ones. This reaction is very general and proceeds in excellent yields. The rearrangement proceeds through the formation of the aziridinium cationic intermediate I, which is subsequently opened by nucleophilic attack (S(N)2) at the less hindered carbon to give the rearranged product. The X-ray structure determination of the rearranged product (17a; Figure 1) confirmed the structure and the stereochemical assignments and is consistent with:the proposed mechanism. When the urea nitrogens are not substituted, the aziridine product can be isolated, and its structure (24; Figure 2) was also confirmed by X-ray analysis. The aziridine product can be used as a mono N-protecting group to synthesize differentially disubstituted N,N'-dialkylated tetrahydropyrimidin-2-one analogues. The tetrahydro-5-hydroxypyrimidin-2-ones can further undergo a second stereospecific, stereoselective-rearrangement, ring-contraction reaction to give the corresponding imidazolidinones. This second rearrangement is also very general and proceeds in good yields. These tetrahydro-5-hydroxypyrimidin-2-ones and imidazolidinones have previously been shown to be potent HIVPR inhibitors.
• Design, Synthesis, and Evaluation of Tetrahydropyrimidinones as an Example of a General Approach to Nonpeptide HIV Protease Inhibitors
  作者：George V. De Lucca、Jing Liang、Paul E. Aldrich、Joe Calabrese、Beverly Cordova、Ronald M. Klabe、Marlene M. Rayner、Chong-Hwan Chang

  DOI：10.1021/jm970081i

  日期：1997.5.1

  Re-examination of the design of the cyclic urea class of HIV protease (HIVPR) inhibitors suggests a general approach to designing novel nonpeptide cyclic HIVPR inhibitors. This process involves the inversion of the stereochemical centers of the core transition-state isostere of the linear HIVPR inhibitors and cyclization of the resulting core using an appropriate cyclizing reagent. As an example, this

  对HIV蛋白酶（HIVPR）抑制剂的环状脲类设计的重新审查提出了设计新型非肽环状HIVPR抑制剂的一般方法。该过程涉及线性HIVPR抑制剂的核心过渡态等位体的立体化学中心的反转，以及使用合适的环化试剂环化所得核心。例如，该方法应用于HIVPR抑制剂的二氨基醇类，得到四氢嘧啶酮。四氢嘧啶酮的构象分析及其与HIVPR活性位点相互作用的模型表明，修饰导致了非常有效的HIVPR抑制剂（24种，Ki = 0.018 nM）。具有HIVPR的24配合物的X射线晶体学结构证实了分析和模型预测。
• Stereospecific Synthesis, Structure−Activity Relationship, and Oral Bioavailability of Tetrahydropyrimidin-2-one HIV Protease Inhibitors
  作者：George V. De Lucca、Jing Liang、Indawati De Lucca

  DOI：10.1021/jm9803626

  日期：1999.1.1

  The use of tetrahydropyrimidinones as an alternate scaffold for designing HIVPR inhibitors has advantages, over the previously disclosed hexahydro-1,3-diazepin-2-ones, of being more unsymmetrical (different P1/P1'), less crystalline, more soluble, and more lipophilic (mono-ol vs diol). They show a better translation of K-i to IC90 for the more polar P2 groups that in general give the more potent enzyme inhibitors. Structure-activity relationship (SAR) studies of the tetrahydropyrimidinones showed that the phenylethyl P1' substituent, the hydroxyl group, and the urea carbonyl are all critical for good activity. However, there was significant flexibility in the possible P2/P2' substituents that could be used. Many analogues that contained identical or different P2/P2' substituents, or only one P2 substituent, were found to have excellent enzyme potency and several had excellent antiviral potency. Several of these compounds were examined for oral bioavailability in the rat or the dog at 10 mg/kg. However, the oral bioavailability of the tetrahydropyrimidinones was, in general, less than the corresponding hexahydro-1,3-diazepin-2-ones. Unfortunately, when all factors are considered, including potency, protein binding, solubility, bioavailability, and resistance profile, the tetrahydropyrimidinones did not offer any advantage over the previously disclosed hexahydro-1,3-diazepin-2-ones series.